Sha256: a8bf212cd73c5a5f41b4e569d5ad8ba56572d63d95a008724c942650de772c05
Contents?: true
Size: 1.09 KB
Versions: 92
Compression:
Stored size: 1.09 KB
Contents
# Collatz Conjecture The Collatz Conjecture or 3x+1 problem can be summarized as follows: Take any positive integer n. If n is even, divide n by 2 to get n / 2. If n is odd, multiply n by 3 and add 1 to get 3n + 1. Repeat the process indefinitely. The conjecture states that no matter which number you start with, you will always reach 1 eventually. Given a number n, return the number of steps required to reach 1. ## Examples Starting with n = 12, the steps would be as follows: 0. 12 1. 6 2. 3 3. 10 4. 5 5. 16 6. 8 7. 4 8. 2 9. 1 Resulting in 9 steps. So for input n = 12, the return value would be 9. Run the tests with: ```bash bats collatz_conjecture_test.sh ``` After the first test(s) pass, continue by commenting out or removing the `skip` annotations prepending other tests. ## Source An unsolved problem in mathematics named after mathematician Lothar Collatz [https://en.wikipedia.org/wiki/3x_%2B_1_problem](https://en.wikipedia.org/wiki/3x_%2B_1_problem) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.
Version data entries
92 entries across 92 versions & 1 rubygems