Problem 1203. Reference Index Number

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Given a reference set R of elements (each unique but identical in type), and a list V of elements drawn from the set R, possibly with duplicates, return K such that R(K) == V. The elements of R may be numeric or string.

For example, refIndex(9:-1:5,[7 5 6 5]) should return [3 5 4 5].

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Last solution submitted on Jul 16, 2019

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Nicholas Howe on 14 Jan 2013

Can this be done efficiently using regexp?

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Solution 190833

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jianrui fan on 12 Jul 2019 at 10:16

so simple and clear

Problem 1203. Reference Index Number

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Problem 1203. Reference Index Number

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Last 200 Solutions

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Recent Solvers83

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