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Problem: Product of Array Except Self

Understand how to compute the product of all elements in an array except the current element efficiently. Explore a two-pass linear time algorithm using prefix and suffix products without division, optimizing space by using the output array. This lesson demonstrates practical array manipulation and algorithm optimization techniques in Java.

Statement

Given an integer array nums, return an array answer where answer[i] represents the product of all elements in nums except nums[i].

You must design an algorithm that operates in O(n)O(n) time complexity and does not use the division operation.

Note: The product of any prefix or suffix of nums is guaranteed to fit in a 3232-bit integer.

Constraints:

  • 2≤2 \leq ...