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Do not sort the array. Return true if the word at the given index "i" is a plural word (ends with s). If the index is invalid, return false. isPlural(["ball", "apple", "cat"], 2) → false isPlural(["cogito", "ergo", "sum"], 2) → false isPlural(["cogito", "ergo", "sum"], 3) → false ...Save, Compile, Run (ctrl-enter)  | 
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Difficulty: 100
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