Knuth's algorithm S: Difference between revisions
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Alextretyak (talk | contribs) (Added 11l) |
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[30172, 29856, 30132, 29884, 29818, 30220, 29900, 30069, 29869, 30080] |
[30172, 29856, 30132, 29884, 29818, 30220, 29900, 30069, 29869, 30080] |
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</pre> |
</pre> |
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=={{header|Nim}}== |
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<lang Nim>import random |
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func sOfNCreator[T](n: Positive): proc(item: T): seq[T] = |
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var sample = newSeqOfCap[T](n) |
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var i = 0 |
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result = proc(item: T): seq[T] = |
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inc i |
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if i <= n: |
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sample.add(item) |
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elif rand(1..i) <= n: |
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sample[rand(n - 1)] = item |
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sample |
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when isMainModule: |
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randomize() |
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echo "Digits counts for 100_000 runs:" |
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var hist: array[10, Natural] |
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for _ in 1..100_000: |
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let sOfN = sOfNCreator[Natural](3) |
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for i in 0..8: |
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discard sOfN(i) |
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for val in sOfN(9): |
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inc hist[val] |
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for n, count in hist: |
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echo n, ": ", count</lang> |
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{{out}} |
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<pre>Digits counts for 100_000 runs: |
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0: 30092 |
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1: 29906 |
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2: 29956 |
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3: 29896 |
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4: 30151 |
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5: 30000 |
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6: 30267 |
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7: 29853 |
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8: 30186 |
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9: 29693</pre> |
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=={{header|Objective-C}}== |
=={{header|Objective-C}}== |
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