Compilare: user.cpp: In function ‘int main()’: user.cpp:3:42: warning: suggest parentheses around ‘-’ inside ‘>>’ [-Wparentheses] #define RN(i) ((RB(i&15)<<8|RB(i>>8))>>16-k) ^ user.cpp:7:50: note: in expansion of macro ‘RN’ int main(){for(f>>n,k=log2(2*n-1);!(i>>k);++i)if(RN(i)<n)g<<RN(i)+1<<' ';} ^ user.cpp:7:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int main(){for(f>>n,k=log2(2*n-1);!(i>>k);++i)if(RN(i)<n)g<<RN(i)+1<<' ';} ^ user.cpp:3:42: warning: suggest parentheses around ‘-’ inside ‘>>’ [-Wparentheses] #define RN(i) ((RB(i&15)<<8|RB(i>>8))>>16-k) ^ user.cpp:7:61: note: in expansion of macro ‘RN’ int main(){for(f>>n,k=log2(2*n-1);!(i>>k);++i)if(RN(i)<n)g<<RN(i)+1<<' ';} ^