#590
Prim
Se dă un graf neorientat ponderat conex cu n
vârfuri și m
muchii – în care fiecare muchie are asociat un cost, număr natural strict pozitiv. Folosind algoritmul lui Prim, determinați un arbore parțial de cost minim, cu rădăcina în vârful 1
.
Problema | Prim | Operații I/O |
prim.in /prim.out
|
---|---|---|---|
Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
Id soluție | #30644570 | Utilizator | |
Fișier | prim.cpp | Dimensiune | 1.21 KB |
Data încărcării | 03 Septembrie 2021, 18:23 | Scor / rezultat | Eroare de compilare |
prim.cpp:2:1: error: 'ifstream' does not name a type ifstream cin("prim.in"); ^ prim.cpp:3:1: error: 'ofstream' does not name a type ofstream cout("prim.out"); ^ prim.cpp:4:1: error: 'vector' does not name a type vector <pair<int , int>> G[101]; ^ prim.cpp:6:1: error: 'vector' does not name a type vector<int> T , D; ^ prim.cpp:7:1: error: 'vector' does not name a type vector<bool>V; ^ prim.cpp: In function 'int main()': prim.cpp:10:9: error: 'cin' was not declared in this scope for(cin >> n >> m ; m ; --m) ^ prim.cpp:13:9: error: 'G' was not declared in this scope G[x].push_back({c , y}); ^ prim.cpp:16:5: error: 'priority_queue' was not declared in this scope priority_queue < ^ prim.cpp:17:9: error: 'pair' was not declared in this scope pair<int , int> , ^ prim.cpp:17:14: error: expected primary-expression before 'int' pair<int , int> , ^ prim.cpp:17:14: error: expected ';' before 'int' prim.cpp:21:5: error: 'V' was not declared in this scope V.resize(n + 1 , false); ^ prim.cpp:22:5: error: 'T' was not declared in this scope T.resize(n + 1 , -1); ^ prim.cpp:23:5: error: 'D' was not declared in this scope D.resize(n + 1 , 0x3f3f3f3f); ^ prim.cpp:27:18: error: 'G' was not declared in this scope for(auto x : G[1]) ^ prim.cpp:31:9: error: 'Q' was not declared in this scope Q.push(x); ^ prim.cpp:35:14: error: expected primary-expression before 'int' pair<int , int> P; ^ prim.cpp:35:14: error: expected ';' before 'int' prim.cpp:37:13: error: 'P' was not declared in this scope P = Q.top(); ^ prim.cpp:37:17: error: 'Q' was not declared in this scope P = Q.top(); ^ prim.cpp:39:18: error: 'P' was not declared in this scope }while(V[P.second]); ^ prim.cpp:42:22: error: 'G' was not declared in this scope for(auto x : G[P.second]) ^ prim.cpp:47:17: error: 'Q' was not declared in this scope Q.push(x); ^ prim.cpp:50:5: error: 'cout' was not declared in this scope cout << S << '\n'; ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema Prim face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.