Interview Bootcamp

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Sort Characters By Frequency (easy)

Problem Statement

Given a string, arrange its characters in descending order based on the frequency of each character. If two characters have the same frequency, their relative order in the output string can be arbitrary.

Example

  1. Input: s = "trersesess"
    • Expected Output: "sssseeerrt"
    • Justification: The character s appears four times, e three times, r two times and t only once. All characters are sorted based on their frequnecy.
  2. Input: s = "banana"
    • Expected Output: "aaannb".

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Brandon W

Brandon W

· 2 years ago

I think difficulty for this problem needs reexamining, because on LeetCode this is marked as a Medium NOT an easy. Definitely made me feel better when I wasn't immediately getting it knowing it was harder than what it says.

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