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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.
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
Actually the first two test cases involving 1.2.3.4 are NOT valid and the last is. Hint: an IP can consist only of digits and periods.
What about the 107 times this kata's been completed?
Look closely.
He's right, something is wrong with the test cases, because it is indeed "1.2.3.4".. that's what I was talking about in my previous comment.. twice in a row it says that "1.2.3.4" is valid, then the 3rd time it says it's not valid..
Look closely. Is it really
"1.2.3.4"
that you are getting?