Скачать или смотреть Permutation in String - LeetCode 567 - C++

Problem Link: https://leetcode.com/problems/permutation-...

In this video, I solve LeetCode 567 - Permutation in String, a medium-level string manipulation problem that tests your understanding of sliding window technique and frequency counting.
Problem Statement: Given two strings s1 and s2, return true if s2 contains a permutation of s1, or false otherwise.
💡 Solution Approach

Algorithm: Sliding Window + Frequency Map
Time Complexity: O(n) where n is the length of s2
Space Complexity: O(1) - using fixed size arrays for 26 lowercase letters
Key Concepts: Two pointers, character frequency counting, window optimization

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