Collatz Step Count

Read a positive integer n. Repeatedly apply the Collatz rule (if n is even, halve it; if odd, replace it with 3 * n + 1) counting how many steps it takes to reach 1, then print that count.

For input 6 the sequence is 6, 3, 10, 5, 16, 8, 4, 2, 1, which is 8 steps, so the output is exactly what is shown in Expected Output.

Expected Output:

8↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

Loops

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