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We want to determine the duplicate names in a list. Given a list of names, return a sorted list of only the names that occur more than once. dups(['alpha', 'beta', 'gamma', 'delta', 'alpha']) → ['alpha'] dups(['alpha', 'beta', 'gamma', 'delta']) → [] dups(['abc', 'xyz', 'mnp', 'mnp', 'abc', 'xyz']) → ['abc', 'mnp', 'xyz'] ...Save, Compile, Run (ctrl-enter) |
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Difficulty: 200
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