Index finite lists of positive integers: Difference between revisions
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* write a function ''unrank'' which is ''rank'' 's [[wp:inverse function|inverse function]]. |
* write a function ''unrank'' which is ''rank'' 's [[wp:inverse function|inverse function]]. |
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Demonstrate your solution by picking a random-length list of random positive integers, turn it into an integer and get the list back. |
<br>Demonstrate your solution by picking a random-length list of random positive integers, turn it into an integer and get the list back. |
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There are many ways to do this. Feel free to choose any one you like. |
There are many ways to do this. Feel free to choose any one you like. |
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Make rank as a [[wp:bijection|bijection]] and show unrank(n) for n varying from 0 to 10. |
Make rank as a [[wp:bijection|bijection]] and show unrank(n) for n varying from 0 to 10. |
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Mbr.<br> |
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=={{header|D}}== |
=={{header|D}}== |
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