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Problem: Product of Array Except Self

Explore how to calculate the product of all elements in an integer array except the current index without using division. Understand the two-pass prefix and suffix product approach that achieves O(n) time and O(1) extra space complexity. This lesson guides you in implementing an efficient solution in C# using arrays and basic operations.

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:

  • 22 \leq ...