Longest Substring with At Most K Distinct Characters | Programming Tutorials

In this tutorial, I have explained an efficient approach to find longest substring with at most k distinct characters.
Given a string, find the length of the longest substring that contains at most (no more than) k distinct characters.
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[@moumazumder5189]

Awesome explanation

[@ProgrammingTutorials1M]

Thank you

[@smilewithriyanshi344]

The explanation is amazing

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Thank you