Compilare: user.cpp: In function ‘int main()’: user.cpp:14:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=n; i++) ^ user.cpp:19:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x>maxi) ^ user.cpp:22:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=maxi; i++) ^ user.cpp:41:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<lungmax; i++) ^