11 lines
236 B
Groovy
11 lines
236 B
Groovy
def zz = { n->
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move = { i, j -> j < n - 1 ? [i <= 0 ? 0 : i-1, j+1] : [i+1, j] }
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grid = new int[n][n]
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(x, y) = [0, 0]
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(n**2).times {
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grid[y][x] = it
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if ((x+y)%2) (x,y) = move(x,y)
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else (y,x) = move(y,x)
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}
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grid
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}
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