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Longest Substring Without Repeating Characters – Sliding Window

Learn how to efficiently find the longest substring with unique characters using sliding window and hashmap in Python and JavaScript.

#algorithms#string#slidingwindow

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

Find Pair with Given Sum in an Array – Brute-force and Optimal Approaches

Explore how to find two elements in an array that sum up to a target value using brute-force and hash map techniques in both Python and JavaScript.

#algorithms#arrays#hashmap

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

Sort Visualization using p5.js

Bubble sort can be implemented as follows: