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I enjoy Random Walks on the Beach

There is a MxN grid (see picture) of spots. You start from the top left spot and go to the bottom right spot. At any spot, you can only go DOWN or RIGHT.

How many different ways can you go from the top left to the bottom right spots?

Nmgrid
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Discussion

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rod 10 days ago

Oooops, nebver mind. the Down or Right thing nixes that question.

rod 10 days ago

can you traverse any spot any number of times?

veggie 3 months ago contains spoiler (show)