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Problem: Product of Array Except Self

Explore how to solve the product of array except self problem using efficient prefix and suffix product computations. This lesson teaches you to create an O(n) time solution without division, using arrays to store intermediate results while maintaining constant extra space complexity. Understand the two-pass approach and implement it using C++ arrays.

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 ...