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Detalii

Problema	MergeSort	Operații I/O	tastatură/ecran
Limita timp	0.3 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#53495181	Utilizator	Tablan Andrei Damian (dmn223)
Fișier	mergesort.cpp	Dimensiune	932 B
Data încărcării	02 Noiembrie 2024, 20:10	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

mergesort.cpp:1:1: error: stray '\`' in program
 \`\`\`c++

 ^
mergesort.cpp:1:1: error: stray '\`' in program
mergesort.cpp:1:1: error: stray '\`' in program
mergesort.cpp:45:1: error: stray '\`' in program
 \`\`\`
 ^
mergesort.cpp:45:1: error: stray '\`' in program
mergesort.cpp:45:1: error: stray '\`' in program
mergesort.cpp:1:4: error: 'c' does not name a type
 \`\`\`c++

    ^
In file included from /usr/include/c++/4.8/iosfwd:40:0,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/postypes.h:98:11: error: 'ptrdiff_t' does not name a type
   typedef ptrdiff_t streamsize; // Signed integral type
           ^
In file included from /usr/include/c++/4.8/exception:152:0,
                 from /usr/include/c++/4.8/ios:39,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/exception_ptr.h:95:30: error: field 'nullptr_t' has incomplete type
       exception_ptr(nullptr_t) noexcept
                              ^
/usr/include/c++/4.8/bits/exception_ptr.h:95:30: error: expected ';' at end of member declaration
/usr/include/c++/4.8/bits/exception_ptr.h:95:32: error: expected unqualified-id before 'noexcept'
       exception_ptr(nullptr_t) noexcept
                                ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:285:31: error: 'std::size_t' has not been declared
   template<typename _Tp, std::size_t _Size>
                               ^
/usr/include/c++/4.8/type_traits:419:34: error: 'nullptr_t' is not a member of 'std'
     struct __is_nullptr_t_helper<std::nullptr_t>
                                  ^
/usr/include/c++/4.8/type_traits:419:34: error: 'nullptr_t' is not a member of 'std'
/usr/include/c++/4.8/type_traits:419:48: error: template argument 1 is invalid
     struct __is_nullptr_t_helper<std::nullptr_t>
                                                ^
/usr/include/c++/4.8/type_traits:1239:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, __alignof__(_Tp)> { };
                                ^
/usr/include/c++/4.8/type_traits:1239:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1239:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, __alignof__(_Tp)> { };
                                ^
/usr/include/c++/4.8/type_traits:1239:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1239:61: error: template argument 1 is invalid
     : public integral_constant<std::size_t, __alignof__(_Tp)> { };
                                                             ^
/usr/include/c++/4.8/type_traits:1239:61: note: invalid template non-type parameter
/usr/include/c++/4.8/type_traits:1244:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 0> { };
                                ^
/usr/include/c++/4.8/type_traits:1244:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1244:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 0> { };
                                ^
/usr/include/c++/4.8/type_traits:1244:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1244:46: error: template argument 1 is invalid
     : public integral_constant<std::size_t, 0> { };
                                              ^
/usr/include/c++/4.8/type_traits:1244:46: note: invalid template non-type parameter
/usr/include/c++/4.8/type_traits:1246:31: error: 'std::size_t' has not been declared
   template<typename _Tp, std::size_t _Size>
                               ^
/usr/include/c++/4.8/type_traits:1248:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
                                ^
/usr/include/c++/4.8/type_traits:1248:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1248:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
                                ^
/usr/include/c++/4.8/type_traits:1248:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1248:65: error: template argument 1 is invalid
     : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
                                                                 ^
/usr/include/c++/4.8/type_traits:1248:65: note: invalid template non-type parameter
/usr/include/c++/4.8/type_traits:1252:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
                                ^
/usr/include/c++/4.8/type_traits:1252:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1252:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
                                ^
/usr/include/c++/4.8/type_traits:1252:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1252:65: error: template argument 1 is invalid
     : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
                                                                 ^
/usr/include/c++/4.8/type_traits:1252:65: note: invalid template non-type parameter
/usr/include/c++/4.8/type_traits:1257:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 0> { };
                                ^
/usr/include/c++/4.8/type_traits:1257:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1257:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t, 0> { };
                                ^
/usr/include/c++/4.8/type_traits:1257:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1257:46: error: template argument 1 is invalid
     : public integral_constant<std::size_t, 0> { };
                                              ^
/usr/include/c++/4.8/type_traits:1257:46: note: invalid template non-type parameter
/usr/include/c++/4.8/type_traits:1259:47: error: 'std::size_t' has not been declared
   template<typename _Tp, unsigned _Uint, std::size_t _Size>
                                               ^
/usr/include/c++/4.8/type_traits:1261:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t,
                                ^
/usr/include/c++/4.8/type_traits:1261:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1261:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t,
                                ^
/usr/include/c++/4.8/type_traits:1261:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1263:28: error: template argument 1 is invalid
           _Uint - 1>::value>
                            ^
/usr/include/c++/4.8/type_traits:1263:28: note: invalid template non-type parameter
/usr/include/c++/4.8/type_traits:1268:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t,
                                ^
/usr/include/c++/4.8/type_traits:1268:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1268:32: error: 'size_t' is not a member of 'std'
     : public integral_constant<std::size_t,
                                ^
/usr/include/c++/4.8/type_traits:1268:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/bits/move.h:57:0,
                 from /usr/include/c++/4.8/bits/stl_pair.h:59,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/type_traits:1270:31: error: template argument 1 is invalid
              _Uint - 1>::value>
                               ^
/usr/include/c++/4.8/type_traits:1270:31: note: invalid template non-type parameter
/usr/include/c++/4.8/type_traits:1627:31: error: 'std::size_t' has not been declared
   template<typename _Tp, std::size_t _Size>
                               ^
/usr/include/c++/4.8/type_traits:1640:31: error: 'std::size_t' has not been declared
   template<typename _Tp, std::size_t _Size>
                               ^
/usr/include/c++/4.8/type_traits:1671:17: error: 'std::size_t' has not been declared
   template<std::size_t _Len>
                 ^
/usr/include/c++/4.8/type_traits:1691:17: error: 'std::size_t' has not been declared
   template<std::size_t _Len, std::size_t _Align =
                 ^
/usr/include/c++/4.8/type_traits:1691:35: error: 'std::size_t' has not been declared
   template<std::size_t _Len, std::size_t _Align =
                                   ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_pair.h:85:17: error: 'std::size_t' has not been declared
   template<std::size_t...>
                 ^
/usr/include/c++/4.8/bits/stl_pair.h:204:41: error: 'std::size_t' has not been declared
       template<typename... _Args1, std::size_t... _Indexes1,
                                         ^
/usr/include/c++/4.8/bits/stl_pair.h:205:41: error: 'std::size_t' has not been declared
                typename... _Args2, std::size_t... _Indexes2>
                                         ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:65:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:116:67: error: expected type-specifier before 'ptrdiff_t'
   template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t,
                                                                   ^
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:116:67: error: expected '>' before 'ptrdiff_t'
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:127:15: error: '_Pointer' does not name a type
       typedef _Pointer   pointer;
               ^
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:129:15: error: '_Reference' does not name a type
       typedef _Reference reference;
               ^
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:179:15: error: 'ptrdiff_t' does not name a type
       typedef ptrdiff_t                   difference_type;
               ^
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:190:15: error: 'ptrdiff_t' does not name a type
       typedef ptrdiff_t                   difference_type;
               ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator.h:101:69: error: wrong number of template arguments (5, should be 3)
                       typename iterator_traits<_Iterator>::reference>
                                                                     ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:65:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:118:12: error: provided for 'template<class _Category, class _Tp, class _Distance> struct std::iterator'
     struct iterator
            ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator.h:403:66: error: wrong number of template arguments (5, should be 3)
     : public iterator<output_iterator_tag, void, void, void, void>
                                                                  ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:65:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:118:12: error: provided for 'template<class _Category, class _Tp, class _Distance> struct std::iterator'
     struct iterator
            ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator.h:494:66: error: wrong number of template arguments (5, should be 3)
     : public iterator<output_iterator_tag, void, void, void, void>
                                                                  ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:65:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:118:12: error: provided for 'template<class _Category, class _Tp, class _Distance> struct std::iterator'
     struct iterator
            ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator.h:588:66: error: wrong number of template arguments (5, should be 3)
     : public iterator<output_iterator_tag, void, void, void, void>
                                                                  ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:65:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_iterator_base_types.h:118:12: error: provided for 'template<class _Category, class _Tp, class _Distance> struct std::iterator'
     struct iterator
            ^
In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/stl_algobase.h: In static member function 'static _Tp* std::__copy_move<_IsMove, true, std::random_access_iterator_tag>::__copy_m(const _Tp*, const _Tp*, _Tp*)':
/usr/include/c++/4.8/bits/stl_algobase.h:370:10: error: 'ptrdiff_t' does not name a type
    const ptrdiff_t _Num = __last - __first;
          ^
/usr/include/c++/4.8/bits/stl_algobase.h:371:8: error: '_Num' was not declared in this scope
    if (_Num)
        ^
/usr/include/c++/4.8/bits/stl_algobase.h:373:22: error: '_Num' was not declared in this scope
    return __result + _Num;
                      ^
/usr/include/c++/4.8/bits/stl_algobase.h: In static member function 'static _Tp* std::__copy_move_backward<_IsMove, true, std::random_access_iterator_tag>::__copy_move_b(const _Tp*, const _Tp*, _Tp*)':
/usr/include/c++/4.8/bits/stl_algobase.h:565:10: error: 'ptrdiff_t' does not name a type
    const ptrdiff_t _Num = __last - __first;
          ^
/usr/include/c++/4.8/bits/stl_algobase.h:566:8: error: '_Num' was not declared in this scope
    if (_Num)
        ^
/usr/include/c++/4.8/bits/stl_algobase.h:568:22: error: '_Num' was not declared in this scope
    return __result - _Num;
                      ^
In file included from /usr/include/c++/4.8/ios:40:0,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/char_traits.h: At global scope:
/usr/include/c++/4.8/bits/char_traits.h:104:66: error: 'std::size_t' has not been declared
       compare(const char_type* __s1, const char_type* __s2, std::size_t __n);
                                                                  ^
/usr/include/c++/4.8/bits/char_traits.h:106:14: error: 'size_t' in namespace 'std' does not name a type
       static std::size_t
              ^
/usr/include/c++/4.8/bits/char_traits.h:110:39: error: 'std::size_t' has not been declared
       find(const char_type* __s, std::size_t __n, const char_type& __a);
                                       ^
/usr/include/c++/4.8/bits/char_traits.h:113:57: error: 'std::size_t' has not been declared
       move(char_type* __s1, const char_type* __s2, std::size_t __n);
                                                         ^
/usr/include/c++/4.8/bits/char_traits.h:116:57: error: 'std::size_t' has not been declared
       copy(char_type* __s1, const char_type* __s2, std::size_t __n);
                                                         ^
/usr/include/c++/4.8/bits/char_traits.h:119:35: error: 'std::size_t' has not been declared
       assign(char_type* __s, std::size_t __n, char_type __a);
                                   ^
/usr/include/c++/4.8/bits/char_traits.h:145:64: error: 'std::size_t' has not been declared
     compare(const char_type* __s1, const char_type* __s2, std::size_t __n)
                                                                ^
/usr/include/c++/4.8/bits/char_traits.h: In static member function 'static int __gnu_cxx::char_traits<_CharT>::compare(const char_type*, const char_type*, int)':
/usr/include/c++/4.8/bits/char_traits.h:147:12: error: 'size_t' is not a member of 'std'
       for (std::size_t __i = 0; __i < __n; ++__i)
            ^
/usr/include/c++/4.8/bits/char_traits.h:147:12: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ios:40:0,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/char_traits.h:147:24: error: expected ';' before '__i'
       for (std::size_t __i = 0; __i < __n; ++__i)
                        ^
/usr/include/c++/4.8/bits/char_traits.h:147:33: error: '__i' was not declared in this scope
       for (std::size_t __i = 0; __i < __n; ++__i)
                                 ^
/usr/include/c++/4.8/bits/char_traits.h: At global scope:
/usr/include/c++/4.8/bits/char_traits.h:156:5: error: 'size_t' in namespace 'std' does not name a type
     std::size_t
     ^
/usr/include/c++/4.8/bits/char_traits.h:169:37: error: 'std::size_t' has not been declared
     find(const char_type* __s, std::size_t __n, const char_type& __a)
                                     ^
/usr/include/c++/4.8/bits/char_traits.h: In static member function 'static const char_type* __gnu_cxx::char_traits<_CharT>::find(const char_type*, int, const char_type&)':
/usr/include/c++/4.8/bits/char_traits.h:171:12: error: 'size_t' is not a member of 'std'
       for (std::size_t __i = 0; __i < __n; ++__i)
            ^
/usr/include/c++/4.8/bits/char_traits.h:171:12: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ios:40:0,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/char_traits.h:171:24: error: expected ';' before '__i'
       for (std::size_t __i = 0; __i < __n; ++__i)
                        ^
/usr/include/c++/4.8/bits/char_traits.h:171:33: error: '__i' was not declared in this scope
       for (std::size_t __i = 0; __i < __n; ++__i)
                                 ^
/usr/include/c++/4.8/bits/char_traits.h: At global scope:
/usr/include/c++/4.8/bits/char_traits.h:180:55: error: 'std::size_t' has not been declared
     move(char_type* __s1, const char_type* __s2, std::size_t __n)
                                                       ^
/usr/include/c++/4.8/bits/char_traits.h:189:55: error: 'std::size_t' has not been declared
     copy(char_type* __s1, const char_type* __s2, std::size_t __n)
                                                       ^
/usr/include/c++/4.8/bits/char_traits.h:199:33: error: 'std::size_t' has not been declared
     assign(char_type* __s, std::size_t __n, char_type __a)
                                 ^
In file included from /usr/include/c++/4.8/ext/new_allocator.h:33:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/new:91:31: error: declaration of 'operator new' as non-function
 void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
                               ^
/usr/include/c++/4.8/new:91:20: error: 'size_t' is not a member of 'std'
 void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
                    ^
/usr/include/c++/4.8/new:91:20: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ext/new_allocator.h:33:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/new:93:33: error: declaration of 'operator new []' as non-function
 void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
                                 ^
/usr/include/c++/4.8/new:93:22: error: 'size_t' is not a member of 'std'
 void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
                      ^
/usr/include/c++/4.8/new:93:22: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ext/new_allocator.h:33:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/new:99:25: error: declaration of 'operator new' as non-function
 void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
                         ^
/usr/include/c++/4.8/new:99:20: error: 'size_t' is not a member of 'std'
 void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
                    ^
/usr/include/c++/4.8/new:99:20: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ext/new_allocator.h:33:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/new:99:33: error: expected primary-expression before 'const'
 void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
                                 ^
/usr/include/c++/4.8/new:101:27: error: declaration of 'operator new []' as non-function
 void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
                           ^
/usr/include/c++/4.8/new:101:22: error: 'size_t' is not a member of 'std'
 void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
                      ^
/usr/include/c++/4.8/new:101:22: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ext/new_allocator.h:33:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/new:101:35: error: expected primary-expression before 'const'
 void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
                                   ^
/usr/include/c++/4.8/new:109:32: error: declaration of 'operator new' as non-function
 inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
                                ^
/usr/include/c++/4.8/new:109:27: error: 'size_t' is not a member of 'std'
 inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
                           ^
/usr/include/c++/4.8/new:109:27: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ext/new_allocator.h:33:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/new:109:40: error: expected primary-expression before 'void'
 inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
                                        ^
/usr/include/c++/4.8/new:111:34: error: declaration of 'operator new []' as non-function
 inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
                                  ^
/usr/include/c++/4.8/new:111:29: error: 'size_t' is not a member of 'std'
 inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
                             ^
/usr/include/c++/4.8/new:111:29: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
                 from /usr/include/c++/4.8/cwchar:44,
                 from /usr/include/c++/4.8/bits/postypes.h:40,
                 from /usr/include/c++/4.8/iosfwd:40,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/lib/gcc/i686-linux-gnu/4.8/include/stddef.h:212:23: note:   'size_t'
 typedef __SIZE_TYPE__ size_t;
                       ^
In file included from /usr/include/c++/4.8/ext/new_allocator.h:33:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/new:111:42: error: expected primary-expression before 'void'
 inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
                                          ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33:0,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/new_allocator.h:44:14: error: 'std::size_t' has not been declared
   using std::size_t;
              ^
/usr/include/c++/4.8/ext/new_allocator.h:45:14: error: 'std::ptrdiff_t' has not been declared
   using std::ptrdiff_t;
              ^
/usr/include/c++/4.8/ext/new_allocator.h:62:15: error: 'ptrdiff_t' does not name a type
       typedef ptrdiff_t  difference_type;
               ^
In file included from /usr/include/c++/4.8/string:41:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/allocator.h:67:15: error: 'ptrdiff_t' does not name a type
       typedef ptrdiff_t   difference_type;
               ^
/usr/include/c++/4.8/bits/allocator.h:96:15: error: 'ptrdiff_t' does not name a type
       typedef ptrdiff_t  difference_type;
               ^
In file included from /usr/include/c++/4.8/string:44:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/ostream_insert.h:45:26: error: 'streamsize' has not been declared
       const _CharT* __s, streamsize __n)
                          ^
/usr/include/c++/4.8/bits/ostream_insert.h: In function 'void std::__ostream_write(std::basic_ostream<_CharT, _Traits>&, const _CharT*, int)':
/usr/include/c++/4.8/bits/ostream_insert.h:50:13: error: 'streamsize' does not name a type
       const streamsize __put = __out.rdbuf()->sputn(__s, __n);
             ^
/usr/include/c++/4.8/bits/ostream_insert.h:51:11: error: '__put' was not declared in this scope
       if (__put != __n)
           ^
/usr/include/c++/4.8/bits/ostream_insert.h: At global scope:
/usr/include/c++/4.8/bits/ostream_insert.h:57:59: error: 'streamsize' has not been declared
     __ostream_fill(basic_ostream<_CharT, _Traits>& __out, streamsize __n)
                                                           ^
/usr/include/c++/4.8/bits/ostream_insert.h:77:27: error: 'streamsize' has not been declared
        const _CharT* __s, streamsize __n)
                           ^
/usr/include/c++/4.8/bits/ostream_insert.h: In function 'std::basic_ostream<_CharT, _Traits>& std::__ostream_insert(std::basic_ostream<_CharT, _Traits>&, const _CharT*, int)':
/usr/include/c++/4.8/bits/ostream_insert.h:87:14: error: 'streamsize' does not name a type
        const streamsize __w = __out.width();
              ^
/usr/include/c++/4.8/bits/ostream_insert.h:88:12: error: '__w' was not declared in this scope
        if (__w > __n)
            ^
/usr/include/c++/4.8/bits/ostream_insert.h: At global scope:
/usr/include/c++/4.8/bits/ostream_insert.h:118:68: error: 'streamsize' has not been declared
   extern template ostream& __ostream_insert(ostream&, const char*, streamsize);
                                                                    ^
/usr/include/c++/4.8/bits/ostream_insert.h:122:11: error: 'streamsize' has not been declared
           streamsize);
           ^
In file included from /usr/include/c++/4.8/bits/basic_string.h:2815:0,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/string_conversions.h:55:51: error: 'std::size_t' has not been declared
     const char* __name, const _CharT* __str, std::size_t* __idx,
                                                   ^
/usr/include/c++/4.8/ext/string_conversions.h:83:48: error: 'std::size_t' has not been declared
     __to_xstring(int (*__convf) (_CharT*, std::size_t, const _CharT*,
                                                ^
/usr/include/c++/4.8/ext/string_conversions.h:84:31: error: 'std::size_t' has not been declared
      __builtin_va_list), std::size_t __n,
                               ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h: In instantiation of 'class std::basic_string<char>':
/usr/include/c++/4.8/bits/basic_string.h:2824:68:   required from here
/usr/include/c++/4.8/bits/basic_string.h:122:61: error: no type named 'difference_type' in 'std::basic_string<char>::_CharT_alloc_type {aka class std::allocator<char>}'
       typedef typename _CharT_alloc_type::difference_type   difference_type;
                                                             ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h: In function 'int std::stoi(const string&, size_t*, int)':
/usr/include/c++/4.8/bits/basic_string.h:2825:19: error: no matching function for call to '__stoa(long int (*)(const char*, char**, int)throw (), const char [5], const char*, size_t*&, int&)'
      __idx, __base); }
                   ^
/usr/include/c++/4.8/bits/basic_string.h:2825:19: note: candidate is:
In file included from /usr/include/c++/4.8/bits/basic_string.h:2815:0,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note: template<class _TRet, class _Ret, class _CharT, class ... _Base> _Ret __gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, int*, _Base ...)
     __stoa(_TRet (*__convf) (const _CharT*, _CharT**, _Base...),
     ^
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2825:19: note:   cannot convert '__idx' (type 'size_t* {aka unsigned int*}') to type 'int*'
      __idx, __base); }
                   ^
/usr/include/c++/4.8/bits/basic_string.h: In function 'long int std::stol(const string&, size_t*, int)':
/usr/include/c++/4.8/bits/basic_string.h:2830:22: error: no matching function for call to '__stoa(long int (*)(const char*, char**, int)throw (), const char [5], const char*, size_t*&, int&)'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h:2830:22: note: candidate is:
In file included from /usr/include/c++/4.8/bits/basic_string.h:2815:0,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note: template<class _TRet, class _Ret, class _CharT, class ... _Base> _Ret __gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, int*, _Base ...)
     __stoa(_TRet (*__convf) (const _CharT*, _CharT**, _Base...),
     ^
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2830:22: note:   cannot convert '__idx' (type 'size_t* {aka unsigned int*}') to type 'int*'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h: In function 'long unsigned int std::stoul(const string&, size_t*, int)':
/usr/include/c++/4.8/bits/basic_string.h:2835:22: error: no matching function for call to '__stoa(long unsigned int (*)(const char*, char**, int)throw (), const char [6], const char*, size_t*&, int&)'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h:2835:22: note: candidate is:
In file included from /usr/include/c++/4.8/bits/basic_string.h:2815:0,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note: template<class _TRet, class _Ret, class _CharT, class ... _Base> _Ret __gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, int*, _Base ...)
     __stoa(_TRet (*__convf) (const _CharT*, _CharT**, _Base...),
     ^
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2835:22: note:   cannot convert '__idx' (type 'size_t* {aka unsigned int*}') to type 'int*'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h: In function 'long long int std::stoll(const string&, size_t*, int)':
/usr/include/c++/4.8/bits/basic_string.h:2840:22: error: no matching function for call to '__stoa(long long int (*)(const char*, char**, int)throw (), const char [6], const char*, size_t*&, int&)'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h:2840:22: note: candidate is:
In file included from /usr/include/c++/4.8/bits/basic_string.h:2815:0,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note: template<class _TRet, class _Ret, class _CharT, class ... _Base> _Ret __gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, int*, _Base ...)
     __stoa(_TRet (*__convf) (const _CharT*, _CharT**, _Base...),
     ^
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2840:22: note:   cannot convert '__idx' (type 'size_t* {aka unsigned int*}') to type 'int*'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h: In function 'long long unsigned int std::stoull(const string&, size_t*, int)':
/usr/include/c++/4.8/bits/basic_string.h:2845:22: error: no matching function for call to '__stoa(long long unsigned int (*)(const char*, char**, int)throw (), const char [7], const char*, size_t*&, int&)'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h:2845:22: note: candidate is:
In file included from /usr/include/c++/4.8/bits/basic_string.h:2815:0,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note: template<class _TRet, class _Ret, class _CharT, class ... _Base> _Ret __gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, int*, _Base ...)
     __stoa(_TRet (*__convf) (const _CharT*, _CharT**, _Base...),
     ^
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2845:22: note:   cannot convert '__idx' (type 'size_t* {aka unsigned int*}') to type 'int*'
         __idx, __base); }
                      ^
/usr/include/c++/4.8/bits/basic_string.h: In function 'float std::stof(const string&, size_t*)':
/usr/include/c++/4.8/bits/basic_string.h:2850:72: error: no matching function for call to '__stoa(float (*)(const char*, char**)throw (), const char [5], const char*, size_t*&)'
   { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); }
                                                                        ^
/usr/include/c++/4.8/bits/basic_string.h:2850:72: note: candidate is:
In file included from /usr/include/c++/4.8/bits/basic_string.h:2815:0,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note: template<class _TRet, class _Ret, class _CharT, class ... _Base> _Ret __gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, int*, _Base ...)
     __stoa(_TRet (*__convf) (const _CharT*, _CharT**, _Base...),
     ^
/usr/include/c++/4.8/ext/string_conversions.h:54:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from mergesort.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2850:72: note:   cannot convert '__idx' (type 'size_t* {aka unsigned int*}') to type 'int*'
   { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); }
   

Cum funcționează evaluarea?