Compilare: user.c: In function ‘main’: user.c:13:30: warning: unused variable ‘rez’ [-Wunused-variable] int n,k,i,x,y,p,u,pas,uc,rez,j; ^ user.c:14:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("statiuni.in","r",stdin); ^ user.c:15:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("statiuni.out","w",stdout); ^ user.c:16:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ user.c:19:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^