Compilare: user.cpp: In function ‘int main()’: user.cpp:14:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= teste; i++) ^ user.cpp:21:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j < n; j++) ^ user.cpp:29:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i != teste) out <<"\n"; ^