LeetCode solutions

1741. Sort Array by Increasing Frequency

My accepted Python solution to LeetCode problem 1741, Sort Array by Increasing Frequency, running in 4ms.

  • Difficulty: Easy
  • Python
  • Runtime 4ms
  • Memory 17.5MB

Read the problem on LeetCode View on GitHub

Python

Accepted on LeetCode — runtime 4ms, memory 17.5MB, accepted 2025-12-30.

python
class Solution:
    def frequencySort(self, nums: List[int]) -> List[int]:
        from collections import Counter
        count = Counter(nums)
        return sorted(nums, key=lambda x: (count[x], -x))

Source