Compilare: user.cpp: In function ‘int main()’: user.cpp:15:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long i = 1; i <= teste; i++) ^ user.cpp:20:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long j = 1; j < n; j++) ^ user.cpp:28:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i != teste) out <<"\n"; ^