Compilare: user.cpp: In function ‘int main()’: user.cpp:8:15: warning: unused variable ‘i’ [-Wunused-variable] long long x,y,i,control,numar=1,k=0,comanda=1; ^ user.cpp:6:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taste.in", "r", stdin); ^ user.cpp:7:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taste.out", "w", stdout); ^