Compilare: user.cpp: In function ‘void solve()’: user.cpp:10:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=maxx;i++) ^ user.cpp:11:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[i]>=C) ^ user.cpp: In function ‘int main()’: user.cpp:26:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x>maxx) ^