Compilare: user.cpp: In function ‘void Solve(int)’: user.cpp:31:20: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] static int y , c , cmax , vlog , i , crsol ; ^ user.cpp: In function ‘int main()’: user.cpp:96:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("spiridusi.in","r",stdin); ^ user.cpp:97:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("spiridusi.out","w",stdout); ^ user.cpp:99:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&noNodes , &spMax ); ^ user.cpp:103:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&cost[ i ] ); ^ user.cpp:107:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&pr[ i ] ); ^ user.cpp:111:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^