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Product of Array Except Self

MediumP1Coding

Given an integer array nums, return an array answer where answer[i] is the product of every element of nums except nums[i].

Do not use division. Aim for O(n) time. Every prefix and suffix product fits in a 32-bit integer.

Example 1

Input
nums = [1,2,3,4]
Output
[24,12,8,6]

Example 2

Input
nums = [-1,1,0,-3,3]
Output
[0,0,9,0,0]

Example 3

Input
nums = [2,3]
Output
[3,2]

Constraints

  • 2 <= nums.length <= 10^5
  • -30 <= nums[i] <= 30
  • Every prefix and suffix product fits in a 32-bit integer.

Hints

Run checks the 3 visible tests, Submit all 8.