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LeetCode 242, Easy. Topics: Hash Table, String, Sorting. View on LeetCode. Generate this problem as a practice environment: tested reference solution, 18 parametrized pytest cases, and a playground notebook:

Problem

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

Examples

Constraints

  • 1 <= s.length, t.length <= 5 * 10^4
  • s and t consist of lowercase English letters.
Follow up: What if the inputs contain Unicode characters? How would you adapt your solution to such a case?

Solution

Reference implementation from solution.py on GitHub, full suite in test_solution.py:

Complexity

Tags

Grind 75, Grind, Blind 75, NeetCode 150, NeetCode 250, NeetCode All.
Last modified on August 25, 2026