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Data Structures for Coding Interviews in Python

Solution: A Sublist with a Sum of 0

Explore how to determine the existence of a consecutive sublist within a list of integers that sums to zero. This lesson guides you through using hash tables to track cumulative sums efficiently, implementing the algorithm in Python, and analyzing its time and space complexity.

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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 lst.length ≤103\leq 10^{3}
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