0242 Valid Anagram

Solved at: 2022-09-04

Question

Given two strings s and t, return true if t is an anagram of s, and false otherwise.

An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.

Solution

class Solution:    def isAnagram(self, s: str, t: str) -> bool:        return sorted(s) == sorted(t)

Results

Runtime

• 129 ms, faster than 6.44% of Python3 online submissions for Valid Anagram.

Memory Usage

• 15.1 MB, less than 11.95% of Python3 online submissions for Valid Anagram.

Complexity Analysis

• Time: $O(n \log n)$
• Space: $O(1)$

Other Answers Online

• Frequency Counter Map alphabet → count
  • Time: $O(n)$
  • Space: $O(1)$ because the map's size is constant.