15 lines
373 B
Plaintext
15 lines
373 B
Plaintext
func quickselect(a, k) {
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var pivot = a.pick;
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var left = a.grep{|i| i < pivot};
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var right = a.grep{|i| i > pivot};
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given(var l = left.len) {
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when (k) { pivot }
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case (k < l) { __FUNC__(left, k) }
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default { __FUNC__(right, k - l - 1) }
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}
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}
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var v = [9, 8, 7, 6, 5, 0, 1, 2, 3, 4];
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say v.range.map{|i| quickselect(v, i)};
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