Find Pivot Index
Explore how to identify the pivot index in an integer array where the sums of elements on both sides are equal. Understand the problem constraints and apply effective tracking techniques to solve it. Practice coding a solution in a hands-on environment, building skills for handling data counts and sums in arrays.
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Statement
Given an integer array nums, find the pivot index of the array.
The pivot index is defined as the index where the sum of all elements strictly to its left equals the sum of all elements strictly to its right. If the index lies on the left edge of the array, the left sum is considered
Return the leftmost pivot index. If no such index exists, return