Compilare: user.cpp: In function ‘void caut_hp(int, int, int, int)’: user.cpp:25:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<hp[k].size();i++) ^ user.cpp: In function ‘void caut_hn(int, int, int, int)’: user.cpp:42:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<hn[k].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:88:19: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(y[i]=y[i-1]) ^