954-Array-Of-Doubled-Pairs

Sat 17 May 2025

https://leetcode.com/problems/array-of-doubled-pairs

import pyutil as pyu
pyu.get_local_pyinfo()
print(pyu.ps2("python-dotenv"))
from typing import List
class Solution:
  def canReorderDoubled(self, A: List[int]) -> bool:
    count = Counter(A)

    for key in sorted(count, key=abs):
      if count[key] > count[2 * key]:
        return False
      count[2 * key] -= count[key]

    return True
new Solution().canReorderDoubled()

Score: 5

Category: leetcode