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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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fixed by ejini战神
the tests are no running in C++, spits out a stderror.
When you take the modulus of a number, there is going to be a case when the return value is equal to zero. For example, 0 modulo 6 is 0. As well, 6 modulo 6 is also 0. Any mulitple of 6 will return a modulo of zero, thus you have to check for that case. The cases you hightlighted above, however extend from 1 through 6. You are off by a factor of 1. Shift everything down, so have a case zero through case 5. Case 6 will never occur from what I see.
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