exp.vx

import rand
fn get_rand_idx(n int) ?[]int{
	mut l := []int{}
	for i := 0; i<n; i++ {
		x := rand.intn(n)?
		if x in l {
			i--
			continue
		}else{
			l << x
		}
	}
	return l
}
fn main(){
	l := get_rand_idx(50)?
	println(l)
}