Compilare: user.c: In function ‘main’: user.c:43:15: warning: unused variable ‘p’ [-Wunused-variable] int n,z,i,p,j; ^ user.c:45:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("farfurii.in","r",stdin); ^ user.c:46:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("farfurii.out","w",stdout); ^ user.c:47:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld",&n,&k); ^