Medium

Quiz

#238 Product of Array Except Self

APPROACH

Given an integer array nums, construct and return an array answer where answer[i] is the product of all elements of nums except nums[i].

Every prefix and suffix product is guaranteed to fit in a 32-bit integer.

Your solution must run in O(n) time and must not use the division operator.

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]
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What is the optimal approach for this problem?