Compilare: user.c: In function ‘bkt’: user.c:6:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,g1,g2,x,y; ^ user.c: In function ‘main’: user.c:52:9: warning: unused variable ‘i’ [-Wunused-variable] int i,n; ^ user.c:53:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("damesah.in","r",stdin); ^ user.c:54:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("damesah.out","w",stdout); ^ user.c:55:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^