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Data Structures for Coding Interviews in Java

Solution: A Subarray with a Sum of 0

Explore how to determine if a consecutive subarray sums to zero by using hash tables to track cumulative sums. Learn to implement this solution in Java and understand its time and space complexity for coding interview preparation.

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Statement

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

Constraints:

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