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AP-1 > wordsCount
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Given an array of strings, return the count of the number of strings with the given length.

wordsCount(["a", "bb", "b", "ccc"], 1) → 2
wordsCount(["a", "bb", "b", "ccc"], 3) → 1
wordsCount(["a", "bb", "b", "ccc"], 4) → 0

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public int wordsCount(String[] words, int len) { }

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