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Question 383
Collatz Length
Collatz Length
Read a positive whole number n and count how many values its Collatz sequence contains, counting n itself and the final 1: while n is not 1, replace it with n // 2 when it is even (test with the remainder operator %) and with 3 * n + 1 when it is odd, adding one to a counter on every step. Print Length: <count>. Input: one integer, no prompt. An input of 1 is already at the end, so its length is 1.
Expected Output:
Length: 10= newline. The output ends with a newline — print one after the last line.
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