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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.
There should only ever be one integer that appears an odd number of times. That is an invalid test case as both 5 and 3 appear an odd number of times (once).
Which language are you trying?
Not sure how to help you without more information. Is your function returning a string for some reason?
Which language did you solve it in? I only did Java the other translations are from other users.
Thanks for the feedback, I updated the details to make it clear that there will always be only one odd integer.
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
thanks
noted and added, thanks for the feedback