Compilare: main.cpp: In function 'int main()': main.cpp:7:30: warning: unused variable 'i' [-Wunused-variable] unsigned long long int n,p,x,i,y; ^ main.cpp:8:30: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lgput.in","r",stdin); ^ main.cpp:9:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lgput.out","w",stdout); ^ main.cpp:10:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%llu%llu",&x,&n); ^