Collatz Conjecture

Challenge Overview

Calculate the number of steps to reach 1 using the Collatz conjecture.

Visit the collatz-conjecture exercise on Exercism to read the full instructions and download the exercise files.

Community Solutions

View Community Solutions

The following are the top 3 community solutions by stars:

Solution 1 by @keiraville (⭐ 0) — View on Exercism
Solution 2 by @colinleach (⭐ 0) — View on Exercism
Solution 3 by @rcmonnet (⭐ 0) — View on Exercism

Source: Exercism odin/collatz-conjecture

💡 View Solution

steps :: proc(start: int) -> (result: int, ok: bool) {
    if start < 1 {
    	return 0, false
    }

    result = 0
    n : int = start
    for ; n > 1; {
        result += 1
        if (n % 2 == 0) {