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package main
import "./student"
func collatzCountdown(start int) int {
if start <= 0 {
return -1
}
steps := 0
for start != 1 {
if start%2 == 0 {
start = start / 2
} else {
start = 3*start + 1
}
steps++
}
return steps
}
func main() {
args := []int{lib.RandIntBetween(-6, 20)}
args = append(args, -5, 0)
for i := 0; i < 20; i++ {
args = append(args, lib.RandIntBetween(2, 20))
}
for _, v := range args {
lib.Challenge("CollatzCountdown", student.CollatzCountdown, collatzCountdown, v)
}
}