shithub: trueawk

ref: c0f4e97e4561ff42544e92512bbaf3d7d1f6a671
dir: /testdir/t.randk/

{
	k = 2
	n = NF
	i = 1
	while ( i <= n ) {
		if ( rand() < k/n ) {
			print i
			k--
		}
		n--
		i++
	}
}