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• 0567. Permutation In String
  • Approach
  • Python
  • C++

TODO 0567. Permutation In String   medium

Given two strings s1 and s2, return true if s2 contains a permutation of s1, or false otherwise.

In other words, return true if one of s1's permutations is the substring of s2.

Example 1:

Input: s1 = "ab", s2 = "eidbaooo"
Output: true
Explanation: s2 contains one permutation of s1 ("ba").

Example 2:

Input: s1 = "ab", s2 = "eidboaoo"
Output: false

Constraints:

• 1 <= s1.length, s2.length <= 10^{4}
• s1 and s2 consist of lowercase English letters.

TODO Approach

Write your approach here.

TODO Python

class Solution:
    def checkInclusion(self, s1: str, s2: str) -> bool:

TODO C++

class Solution {
public:
    bool checkInclusion(string s1, string s2) {
        
    }
};