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Sliding Window Technique : Solving Subarray and Substring Problems Efficiently

This story is from 2026-09-19. It is preserved in the archive; the latest stories are on the live feed.

Why should you care? Many programming problems involve finding something inside a contiguous portion of an array or string. For example: Find the maximum sum of k consecutive elements. Find the longest substring without repeating characters. Find the smallest subarray whose sum reaches a target. Fi…

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  1. 2026-09-19 11:09 · DEV Community — AI
    Sliding Window Technique : Solving Subarray and Substring Problems Efficiently

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