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Solution: Product of Array Except Self

Explore how to compute the product of all elements except the current one in an array without using division. Understand both a brute force and an optimized bidirectional accumulation method. This lesson helps you implement an O(n) time, constant space algorithm vital for coding interviews focused on arrays.

Statement

You’re given an integer array, nums. Return a resultant array product so that product[i] is equal to the product of all the elements of nums except nums[i].

Write an algorithm that runs in O(n)O(n) time without using the division operation.

Constraints:

  • 22 \leq nums.length 103\leq 10^3
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