#1882
calcul3
Se consideră o expresie aritmetică fără paranteze, în care operanzii sunt cifre, iar operatorii sunt +
sau −
. Să se evalueze expresia dată.
Problema | calcul3 | Operații I/O |
calcul3.in /calcul3.out
|
---|---|---|---|
Limita timp | 0.01 secunde | Limita memorie |
Total: 0.3 MB
/
Stivă 0.3 MB
|
Id soluție | #32254520 | Utilizator | |
Fișier | calcul3.cpp | Dimensiune | 331 B |
Data încărcării | 10 Noiembrie 2021, 18:12 | Scor / rezultat | Eroare de compilare |
calcul3.cpp:4:13: error: variable 'std::ifstream cin' has initializer but incomplete type ifstream cin("calcul3.in"); ^ calcul3.cpp:5:14: error: variable 'std::ofstream cout' has initializer but incomplete type ofstream cout("calcul3.out"); ^ calcul3.cpp: In function 'int main()': calcul3.cpp:10:5: error: reference to 'cin' is ambiguous cin>>x; ^ calcul3.cpp:4:10: note: candidates are: <typeprefixerror>cin ifstream cin("calcul3.in"); ^ In file included from calcul3.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ calcul3.cpp:12:11: error: reference to 'cin' is ambiguous while(cin>>op) ^ calcul3.cpp:4:10: note: candidates are: <typeprefixerror>cin ifstream cin("calcul3.in"); ^ In file included from calcul3.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ calcul3.cpp:14:9: error: reference to 'cin' is ambiguous cin>>y; ^ calcul3.cpp:4:10: note: candidates are: <typeprefixerror>cin ifstream cin("calcul3.in"); ^ In file included from calcul3.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ calcul3.cpp:15:18: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(op='+') sum+=y; ^ calcul3.cpp:16:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses] else if(op='-') sum-=y; ^ calcul3.cpp:18:5: error: reference to 'cout' is ambiguous cout << sum; ^ calcul3.cpp:5:10: note: candidates are: <typeprefixerror>cout ofstream cout("calcul3.out"); ^ In file included from calcul3.cpp:1:0: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema calcul3 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.