This is (more or less) cribbed from the USC contest winner's solution.
Very fast and very compact solution. Nice usage of complex to calculate distance between points and recursion.
Back to basics 6 - Column Vector
Back to basics 8 - Matrix Diagonals
intersection of matrices
Find the hypotenuse
PACMAT - Ghosts Random; 3 Lives
Kaggle: Reverse Game of Life - Periods of Oscillators
Kurchan 3x3 - Optimal Score
Unique: Enhanced Performance - Avoiding Memory Crash
Criss-Cross: NHL - Optimize Matrix Size
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