Compilare: main.cpp: In function 'int main()': main.cpp:13:27: warning: unused variable 'j' [-Wunused-variable] long long n , e , i , j , s , sum , aux , nr1 , nr2; ^ main.cpp:11:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("galeti2.in" , "r" , stdin); ^ main.cpp:12:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("galeti2.out" , "w" , stdout); ^ main.cpp:14:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld" , &n , &e); ^