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Jun 26, 2025

Check if a Subarray with Zero Sum Exists – Prefix Sum in Action

Understand how to check for a zero-sum subarray using both brute-force and prefix sum techniques, with step-by-step code in Python and JavaScript.

#algorithms#arrays#prefixsum
Jun 26, 2025

Print All Zero-Sum Subarrays – From Brute-Force to Prefix Hashing

Explore how to find and print all subarrays that sum to zero using both brute-force and efficient prefix-sum + hashmap techniques in Python.

#algorithms#arrays#prefixsum