One of n lines in a file: Difference between revisions
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(New draft task and Python solution.) |
(→{{header|Perl 6}}: add) |
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Note: You may choose a smaller number of repetitions if necessary, but mention this up-front. |
Note: You may choose a smaller number of repetitions if necessary, but mention this up-front. |
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=={{header|Perl 6}}== |
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{{trans|Python}} |
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<lang perl6>sub one_of_n($n) { |
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my $choice; |
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$choice = $_ if rand * $_ < 1 for 1 .. $n; |
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$choice - 1; |
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} |
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sub one_of_n_test($n = 10, $trials = 1000000) { |
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my @bins; |
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@bins[one_of_n($n)]++ for ^$trials; |
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@bins; |
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} |
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say one_of_n_test();</lang> |
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Output: |
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<pre>100288 100047 99660 99773 100256 99633 100161 100483 99789 99910</pre> |
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=={{header|Python}}== |
=={{header|Python}}== |
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<lang python>from random import random as rnd |
<lang python>from random import random as rnd |
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