In this HackerRank Ruby Control Structures - Until problem solution, 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>
<code>
end
or
until <condition>
<code>
end
or the beautiful one-liner
<code> until <condition>
Problem solution.
coder.practice until coder.oh_one?
Second solution.
# Enter your code here. Read input from STDIN. Print output to STDOUT while not coder.on_one? coder.practice end
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