Compilare: user.cpp: In function ‘int main()’: user.cpp:174:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=nrel;i++) ^ user.cpp:175:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i1<=c[i]) if(j2>=c[i]) g<<c[i]<<"\n"; ^ user.cpp: In function ‘void bktgenc(long long unsigned int)’: user.cpp:147:19: warning: array subscript is above array bounds [-Warray-bounds] if(used[29]==0&&b[k-1]<29) ^ user.cpp:149:20: warning: array subscript is above array bounds [-Warray-bounds] used[29]=1; ^ user.cpp:154:20: warning: array subscript is above array bounds [-Warray-bounds] used[29]=0; ^