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.
Sometimes some of the random test cases claim to have neither a circuit or path, but in reality do actually have a path (at least that's how testing the particular graph on paper turned out for me). I tried to find a pattern, but I couldn't. It might very well be my code that's bugged here and I could totally have messed up when figuring out the graph on paper, but maybe you should have another look on the randomized tests.