Product except self

    def productExceptSelf(nums):
        zero_cnt = 0
        mul = 1
        zero_flag = False

        for num in nums:
            if num != 0:
                mul *= num
            else:
                zero_cnt+=1
                zero_flag = True
                if zero_cnt>1:
                    return [0] * len(nums)


        res = []

        if zero_flag==True:
            for num in nums:
                if num==0:
                    res.append(mul)
                else:
                    res.append(0)
        else:
            for num in nums:
                res.append(int(mul/num))
        return res