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Data Structures for Coding Interviews in Go

Solution: A Subarray with a Sum of 0

Explore how to identify a subarray whose elements sum to zero using a hash table in Go. Learn to maintain cumulative sums and detect repeated sums to efficiently solve the problem with linear time complexity.

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Statement

Given an array containing both positive and negative integers, determine if there exists a subarray of consecutive elements whose elements sum to zero. Return TRUE if such a subarray exists; otherwise, return FALSE.

Constraints:

  • 1≤1 \leq arr.length ≤103\leq 10^{3}
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