Compilare: user.c: In function ‘main’: user.c:38:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("aiafarapalindroame.in","r",stdin); ^ user.c:39:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("aiafarapalindroame.out","w",stdout); ^ user.c:40:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^