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Given an array of ints, return true if the value 4 appears in the array exactly 4 times fourFours([4, 4, 1, 4, 7, 4, 7]) → true fourFours([4, 1, 7, 4, 1, 7, 4]) → false fourFours([7, 7, 1, 1, 7, 4, 4, 4, 4]) → true ...Save, Compile, Run (ctrl-enter) |
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