Compilare: user.cpp: In function ‘int main()’: user.cpp:17:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1; i <= n; i ++) ^ user.cpp:26:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[i] <= gc && vz[i] == false) ^ user.cpp:34:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 1; j <= n; j ++) ^ user.cpp:35:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[j] <= gc && vz[j] == false) ^