Pattern

Frequency Count

3 problems in the roadmap use this pattern.

• Valid Anagram Easy

  in Arrays, Strings & Hashing

  Reported at: AmazonMetaMicrosoft+5
• Ransom Note Easy

  in Arrays, Strings & Hashing

  Reported at: GoogleAppleSpotify+1
• Sort Characters By Frequency Medium

  in Arrays, Strings & Hashing

  Reported at: MicrosoftMetaAmazon+2