Cody

Problem 2193. Mysterious digits operation (easy)

What is this digit operation?

 0    -> 0
 1    -> 9
 121  -> 9
 44   -> 6
 15   -> 5
 1243 -> 7
 ...

Solution Stats

57.52% Correct | 42.48% Incorrect
Last Solution submitted on Feb 12, 2020

Problem Comments