Compilare: user.cpp: In function ‘int powLG(int, int)’: user.cpp:25:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘long long int up(long long int)’: user.cpp:51:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:55:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("valuare.in", "r", stdin); ^ user.cpp:58:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld", &base, &mod); ^