Compilare: user.cpp: In function ‘long long unsigned int Calcul(int, int, long long int)’: user.cpp:27:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p <= N / x) ^ user.cpp: In function ‘int main()’: user.cpp:61:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nr==N) ^ user.cpp:69:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nr<N) ^ user.cpp:41:28: warning: unused variable ‘i’ [-Wunused-variable] int st,dr,mij,ok,T,exp,i; ^