Minimum Window Substring
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What is Minimum Window Substring?
Given strings s and t, find the smallest substring of s that contains all characters of t. You expand the right pointer until you have a valid window, then shrink from the left as much as possible while keeping it valid. This is one of the hardest sliding window problems and teaches you to manage a character frequency map as the window changes.
Free resources to learn Minimum Window Substring
More in stage 8: Sliding Window
Minimum Window Substring: common questions
Can I learn Minimum Window Substring in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Minimum Window Substring in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Minimum Window Substring tutorial for beginners?
It is lesson 43 of 137 in the free LeetCode roadmap, in stage 8, Sliding Window. If you are new to LeetCode, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.