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Detalii evaluare #44041358
Rezumat problemă
#3697
drumuri2
Fie G un graf orientat cu N noduri și M arce. Spunem că nodul Y este accesibil din nodul X dacă se poate ajunge de la X la Y mergând pe arce în sensul corespunzător al acestora. Spunem că nodul X este “popular” dacă pentru fiecare nod Y al grafului G se îndeplinește cel puțin una din condițiile:
1. X este accesibil din Y;
2. Y este accesibil din X.
Dându-se cele două numere N si M cât si arcele grafului, să se afle care sunt nodurile populare din graf.
ONI 2013, Clasele XI-XII
- Fișiere
-
Pracsiu Dan (dnprx)
- Alexandru Cazacu
- concurs
Detalii
| Problema | drumuri2 | Operații I/O |
drumuri.in/drumuri.out
|
|---|---|---|---|
| Limita timp | 0.3 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #44041358 | Utilizator |
Mosor Alexandru (MosorAlexandru90)
|
| Fișier | drumuri2.cpp | Dimensiune | 1.68 KB |
| Data încărcării | 12 Iunie 2023, 13:15 | Scor / rezultat | Eroare de compilare |
Evaluare
Mesaj compilare
drumuri2.cpp: In function 'int main()': drumuri2.cpp:2:31: error: 'stdin' was not declared in this scope freopen("drumuri.in", "rt", stdin); ^ drumuri2.cpp:2:36: error: 'freopen' was not declared in this scope freopen("drumuri.in", "rt", stdin); ^ drumuri2.cpp:3:32: error: 'stdout' was not declared in this scope freopen("drumuri.out", "wt", stdout); ^ drumuri2.cpp:5:18: error: 'n' was not declared in this scope scanf("%d%d", &n, &m); ^ drumuri2.cpp:5:22: error: 'm' was not declared in this scope scanf("%d%d", &n, &m); ^ drumuri2.cpp:5:23: error: 'scanf' was not declared in this scope scanf("%d%d", &n, &m); ^ drumuri2.cpp:12:5: error: 'v' was not declared in this scope v[x].push_back(y); ^ drumuri2.cpp:13:5: error: 'w' was not declared in this scope w[y].push_back(x); ^ drumuri2.cpp:15:5: error: 'muchii' was not declared in this scope muchii.push_back(make_pair(x, y)); ^ drumuri2.cpp:15:36: error: 'make_pair' was not declared in this scope muchii.push_back(make_pair(x, y)); ^ drumuri2.cpp:19:9: error: 'fst' was not declared in this scope if (fst[i] == false) { ^ drumuri2.cpp:20:12: error: 'df1' was not declared in this scope df1(i); ^ drumuri2.cpp:25:9: error: 'fst' was not declared in this scope if (fst[postordine[i]] == true) { ^ drumuri2.cpp:25:13: error: 'postordine' was not declared in this scope if (fst[postordine[i]] == true) { ^ drumuri2.cpp:26:7: error: 'nr_tare' was not declared in this scope nr_tare++; ^ drumuri2.cpp:28:7: error: 'comps' was not declared in this scope comps.push_back(vector<int>()); ^ drumuri2.cpp:28:23: error: 'vector' was not declared in this scope comps.push_back(vector<int>()); ^ drumuri2.cpp:28:30: error: expected primary-expression before 'int' comps.push_back(vector<int>()); ^ drumuri2.cpp:30:24: error: 'df2' was not declared in this scope df2(postordine[i]); ^ drumuri2.cpp:39:9: error: 'which' was not declared in this scope if (which[muchii[i].first] != which[muchii[i].second]) { ^ drumuri2.cpp:39:15: error: 'muchii' was not declared in this scope if (which[muchii[i].first] != which[muchii[i].second]) { ^ drumuri2.cpp:40:7: error: 'vec' was not declared in this scope vec[which[muchii[i].first]].push_back(which[muchii[i].second]); ^ drumuri2.cpp:42:7: error: 'rev_vec' was not declared in this scope rev_vec[which[muchii[i].second]].push_back(which[muchii[i].first]); ^ drumuri2.cpp:46:24: error: 'nr_tare' was not declared in this scope for (int i = 1; i <= nr_tare; i++) { ^ drumuri2.cpp:47:9: error: 'fst' was not declared in this scope if (fst[i] == false) { ^ drumuri2.cpp:48:15: error: 'doSort' was not declared in this scope doSort(i); ^ drumuri2.cpp:52:11: error: 'top_sort' was not declared in this scope calcAll(top_sort, rev_vec, 0); ^ drumuri2.cpp:52:21: error: 'rev_vec' was not declared in this scope calcAll(top_sort, rev_vec, 0); ^ drumuri2.cpp:52:31: error: 'calcAll' was not declared in this scope calcAll(top_sort, rev_vec, 0); ^ drumuri2.cpp:54:43: error: 'reverse' was not declared in this scope reverse(top_sort.begin(), top_sort.end()); ^ drumuri2.cpp:60:21: error: 'vec' was not declared in this scope calcAll(top_sort, vec, 1); ^ drumuri2.cpp:62:24: error: 'nr_tare' was not declared in this scope for (int i = 1; i <= nr_tare; i++) { ^ drumuri2.cpp:67:24: error: 'nr_tare' was not declared in this scope for (int i = 1; i <= nr_tare; i++) { ^ drumuri2.cpp:68:9: error: 'cnt' was not declared in this scope if (cnt[0][i] + cnt[1][i] == nr_tare + 1) { ^ drumuri2.cpp:69:32: error: 'comps' was not declared in this scope for (int j = 0; j < (int)comps[i - 1].size(); j++) { ^ drumuri2.cpp:71:9: error: 'good' was not declared in this scope good[comps[i - 1][j]] = true; ^ drumuri2.cpp:76:24: error: 'printf' was not declared in this scope printf("%d\n", nr_rez); ^ drumuri2.cpp:78:9: error: 'good' was not declared in this scope if (good[i] == true) { ^
Cum funcționează evaluarea?
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
- probleme la care rezolvarea presupune scrierea unui program complet
- probleme la care rezolvarea presupune scrierea unei secvențe de program - câteva instrucțiuni, o listă de declarații, una sau mai multe funcții, etc.
Problema drumuri2 face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
- Programul sursă este compilat folosind compilatorul corespunzător. Dacă în urma compilării se obțin erori sau avertismente, acestea sunt afișate în această pagină.
- Dacă programul a fost compilat, executabilul obținut va fi rulat, furnizându-i-se unul sau mai multe seturi de date de intrare, în concordanță cu restricțiile specifice problemei. Pentru fiecare set de date se obține un anumit punctaj, în raport cu corectitudinea soluției tale.
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.