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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
You are so right my mistake!! I did not read enough thank you for pointing out!
No, your code is outputting the wrong answer. The input is
1021
, your code returns1201
, the correct answer is2110
. The task is not to reverse the number, read the description again.Test1021 is wrong the order is messed up for the test case.