Compilare: user.cpp: In function ‘void f()’: user.cpp:5:24: warning: unused variable ‘m’ [-Wunused-variable] {long long n,b,i,j,m,x,k,q,nr,sqq,sw,p,min; ^ user.cpp:7:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&n,&b); ^ user.cpp: In function ‘int main()’: user.cpp:49:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen ("zero2.in","r",stdin); ^ user.cpp:50:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("zero2.out","w",stdout); ^