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.
Remove the polynomials that have positive real elements of their roots.
Find state names that start with the letter N
Scoring for oriented dominoes
Is A the inverse of B?
Remove the two elements next to NaN value
Find number patterns in rows of a matrix...
Poker Card Deal!
Finding the next number in a number list, are you able to crack it!
Count consecutive 0's in between values of 1
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