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Missing Numbers

  • patrickgao2020
     + 1 comment

    Here is my Python solution!

    def missingNumbers(arr, brr):
    arr = Counter(arr)
    brr = Counter(brr)
    missing = []
    for num in brr.keys():
        if arr[num] < brr[num]:
            missing.append(num)
    return sorted(list(set(missing)))