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Given an array of ints, return the number of 1's in the array. arrayCount1([1, 2, 9]) → 1 arrayCount1([1, 9, 1]) → 2 arrayCount1([1, 9, 1, 3, 1]) → 3 ...Save, Compile, Run (ctrl-enter) |
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Difficulty: 100 Post-solution available
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