Loading collection data...
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.
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memo[char]?memo[char]+1:1is not actuallying assigning anything to thememoobject (which is used as a table for holding character counts)This comment is hidden because it contains spoiler information about the solution
arr = [1, [1, 1]]
arr2 = [
[2],
[2, 2]] are not the same.This solution is wrong