🐌 snail-sort

Implementations in various languages for the snail sorting algorithm, sorting an nxm rectangular, 2d array by traversing elements in a clockwise spiral.

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Examples

Snail-sorting a 3x3 array:

    [                        
        [1, 2, 3],
        [4, 5, 6],
        [7, 8, 9],
    ]                        

    => [1, 2, 3, 6, 9, 8, 7, 4, 5]

Snail-sorting a 4x5 array:

    [                        
        [a, b, c, d, e],     
        [f, g, h, i, j],     
        [k, l, m, n, o],     
        [p, q, r, s, t]      
    ]                        

    => [a, b, c, d, e, j, o, t, s, r, q, p, k, f, g, h, i, n, m, l]