18 lines
431 B
Text
18 lines
431 B
Text
function zigzag2(n) {
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a = zigzag1(n)
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v = (1..n-1):^2
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for (i=1; i<n; i++) {
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a[n-i+1, i+1..n] = a[n-i+1, i+1..n] - v[1..n-i]
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}
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return(a)
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}
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zigzag2(5)
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1 2 3 4 5
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+--------------------------+
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1 | 0 1 5 6 14 |
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2 | 2 4 7 13 15 |
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3 | 3 8 12 16 21 |
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4 | 9 11 17 20 22 |
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5 | 10 18 19 23 24 |
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+--------------------------+
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