Ruby Control Structures – Until Solution

In this post, we will solve Ruby Control Structures – Until HackerRank Solution. This problem (Ruby Control Structures – Until) is a part of HackerRank Ruby series.


This challenge has a beautiful one-liner answer.

“A hacker practices on HackerRank until getting to a rating of O(1) read as (Oh-one)”

Call the method coder.practice until coder.oh_one? becomes true.

Use the until control structure.

until is the logical equivalent of while not.


while not <condition>


until <condition>

or the beautiful one-liner

<code> until <condition>  

Solution – Ruby Control Structures – Until

# Enter your code here. Read input from STDIN. Print outpu
coder.practice until coder.oh_one?

Note: This problem (Ruby Control Structures – Until) is generated by HackerRank but the solution is provided by CodingBroz. This tutorial is only for Educational and Learning purpose.

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