package main import ( student "student" "github.com/01-edu/public/go/tests/lib" ) 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 := append(lib.MultRandIntBetween(2, 20), lib.RandIntBetween(-6, 20), -5, 0, ) for _, v := range args { lib.Challenge("CollatzCountdown", student.CollatzCountdown, collatzCountdown, v) } }