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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.
bottom left corner is [0,0]
size of map is NxN
top right corner is [N-1, N-1]
it's all because you starting count from ZERO, not from ONE
you can do this:
You need to climb up, but you also need to climb down, as last cell is of height 0. (climbing down also counts towards total climb rounds)