Compilare: user.cpp: In function ‘void ciur(long long unsigned int)’: user.cpp:15:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long i=2;i<=limit;++i) ^ user.cpp:17:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long i=2;i<=limit;++i) ^ user.cpp:19:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long j=i*i;j<=limit;j+=i) ^ user.cpp: In function ‘int main()’: user.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=a;i<=b;++i) ^ user.cpp:41:36: warning: left operand of comma operator has no effect [-Wunused-value] for(i=poz-1,j=i-1;i>=1,j>=1;i--,j--) ^