Compilare: user.cpp: In function ‘int main()’: user.cpp:15:13: warning: unused variable ‘j’ [-Wunused-variable] int n, i, j, ok, nr, unde ,st, dr, mm1, mm2, m; ^ user.cpp:16:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &n); ^ user.cpp:18:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &v[i]); ^