Compilare: user.c: In function ‘main’: user.c:13:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d",&n,&k); ^ user.c:42:5: warning: ‘f’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=st;i<=f;i++) ^ user.c:42:20: warning: ‘st’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=st;i<=f;i++) ^