Borderou de evaluare (job #810413)

Compilare: main.cpp: In function 'void solve(const std::string&)': main.cpp:17:16: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 17 | if(op='+') | ~~^~~~ main.cpp: In function 'int main()': main.cpp:44:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 44 | freopen("betisoare.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:45:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 45 | freopen("betisoare.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~