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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.
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This is just feedback, I might try again. The question is slightly vaguely phrased. I spent a long time working on it, only to discover that the description of roman numerals on wikipedia is subtly different. The description of roman numerals on wikipedia is that they are subtractive from the right, rather than additive from the left. This results in a difference in the number 789 ('DCCXXCVIIII' obtained by my program that works correctly on the two asserts in the test run but not this number versus the correct number given by wikipedia which is DCCLXXXIX.) It's unfortunate that I spent so much time going down the wrong road before realizing that the actual description of roman numerals is a little bit different. I realize there isn't much space to describe it. Thanks!
S Dorsher
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
This kata is fun because it leaves room for clever mathematically solutions. I particularly enjoy those, being a numerical programmer.