#503
Un vector cu elemente 0 sau 1 se numește alternativ dacă oricum am lua două elemente vecine în vector, cel puțin unul dintre ele este 0.
Se dă un vector cu n elemente, numere naturale. Verificați dacă vectorul este alternativ.
| Problema | Alternanta | Operații I/O |
tastatură/ecran
|
|---|---|---|---|
| Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #63292810 | Utilizator | |
| Fișier | alternanta.cpp | Dimensiune | 277 B |
| Data încărcării | 25 Februarie 2026, 10:17 | Scor/rezultat | Eroare de compilare |
alternanta.cpp:4:1: error: stray '\342' in program int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:1: error: stray '\200' in program alternanta.cpp:4:1: error: stray '\223' in program alternanta.cpp:4:1: error: stray '\342' in program alternanta.cpp:4:1: error: stray '\200' in program alternanta.cpp:4:1: error: stray '\234' in program alternanta.cpp:4:1: error: stray '\342' in program alternanta.cpp:4:1: error: stray '\200' in program alternanta.cpp:4:1: error: stray '\235' in program alternanta.cpp:4:1: error: stray '\342' in program alternanta.cpp:4:1: error: stray '\200' in program alternanta.cpp:4:1: error: stray '\234' in program alternanta.cpp:4:1: error: stray '\342' in program alternanta.cpp:4:1: error: stray '\200' in program alternanta.cpp:4:1: error: stray '\235' in program alternanta.cpp: In function 'int main()': alternanta.cpp:4:74: error: 'x' was not declared in this scope int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:122: error: expected ';' before numeric constant int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:122: warning: for increment expression has no effect [-Wunused-value] alternanta.cpp:4:124: error: expected ')' before ';' token int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:126: error: 'i' was not declared in this scope int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:130: error: expected ';' before ')' token int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:187: error: 'DA' was not declared in this scope int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:210: error: 'NU' was not declared in this scope int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^ alternanta.cpp:4:20: warning: unused variable 'x1005' [-Wunused-variable] int main(){ int n, x1005; cin >> n; for(int i = 0 ; i < n ; ++ i) cin >> x[i]; bool ok = true; for(int i = 0 ; i < n – 1 ; i++ ) if(x[i] * x[i + 1] == 1) ok = false; if(ok) cout << “DA”; else cout << “NU”; return 0; ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema Alternanta 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.