Check if two strings are Anagrams.

Updated Apr 28, 2026

Short answer

Check if two strings contain the same characters with the same frequencies.

Deep explanation

Intermediate string problems test your ability to use frequency maps and sliding windows. Check if two strings contain the same characters with the same frequencies.

Real-world example

Search filters that ignore character order.

Common mistakes

  • Inefficiently sorting strings for an anagram check when a frequency map is O(n).

Follow-up questions

  • What is the time complexity of sorting?

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