#658
Se dă o matrice cu n linii și m coloane și elemente numere naturale. Să se determine suma elementelor de pe fiecare linie.
| Problema | SumaLinii | Operații I/O |
tastatură/ecran
|
|---|---|---|---|
| Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #64250154 | Utilizator | |
| Fișier | sumalinii.cpp | Dimensiune | 254 B |
| Data încărcării | 25 Aprilie 2026, 19:58 | Scor/rezultat | Eroare de compilare |
sumalinii.cpp:2:7: error: expected nested-name-specifier before ‘namespacestd’ 2 | using namespacestd; | ^~~~~~~~~~~~ sumalinii.cpp: In function ‘int main()’: sumalinii.cpp:6:2: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’? 6 | {cin>>n>>m; | ^~~ | std::cin In file included from sumalinii.cpp:1: /usr/include/c++/13/iostream:62:18: note: ‘std::cin’ declared here 62 | extern istream cin; ///< Linked to standard input | ^~~ sumalinii.cpp:7:2: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] 7 | for(i=1;i<=n;i++) | ^~~ sumalinii.cpp:11:6: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’ 11 | for(i=1;i<=n;i++) | ^~~ sumalinii.cpp:13:4: error: ‘s’ was not declared in this scope 13 | { s=s+a[i][j];} | ^ sumalinii.cpp:14:3: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’? 14 | cout<<sum;} | ^~~~ | std::cout /usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here 63 | extern ostream cout; ///< Linked to standard output | ^~~~ sumalinii.cpp:14:14: error: expected ‘}’ at end of input 14 | cout<<sum;} | ^ sumalinii.cpp:6:1: note: to match this ‘{’ 6 | {cin>>n>>m; | ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema SumaLinii 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.