In test 1 why the iron in x(4,1) did not moved to the top !?
x(4,1) is equidistant to both upper and lower magnet, that's why...
Check to see if a Sudoku Puzzle is Solved
Use of regexp
How long is the longest prime diagonal?
Detect a number and replace with two NaN's
I want eval
possible ways through matrix
Graph Algorithms - 1 : Length of the largest closed path
Yet Another Path Finder
Integer Sequence - 1
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