Compilare: user.cpp: In function ‘void citire()’: user.cpp:25:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {f>>v[j];aa[v[j]]=1;if(v[j]>vm) vm=v[j];} ^ user.cpp: In function ‘void solve()’: user.cpp:30:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=vm;++i) ^ user.cpp:34:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(p=i;p<=vm && ns<2;p+=i) ^