A lot of beautiful solutions.
Now, that's a neat and cool solution.
Very neat solution
He just wrote all the matrices...that's not neat, but everyone has the right to an opinion.
Another good one.
Who Has the Most Change?
Split a string into chunks of specified length
Generate a random matrix A of (1,-1)
Can you beat the lottery?
Find same numbers touching each other...
The sum of individual numbers...
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