#2206

Divide Array Into Equal Pairs

newbie · 185 · lc easy +15 · verified · 79.2% accepted · 1,194 likes · top 90%

Description

You are given an integer array nums consisting of 2 * n integers.

Partition nums into n pairs where:

- Each element belongs to exactly one pair.

- Both elements in each pair are equal.

Return true if such a partition is possible, otherwise return false.

Example 1:

Input: nums = [3,2,3,2,2,2]

Output: true

Explanation:

There are 6 elements in nums, so they should be divided into 6 / 2 = 3 pairs.

If nums is divided into the pairs (2, 2), (3, 3), and (2, 2), it will satisfy all the conditions.

Example 2:

Input: nums = [1,2,3,4]

Output: false

Explanation:

There is no way to divide nums into 4 / 2 = 2 pairs such that the pairs satisfy every condition.

Code

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class Solution:
    def divideArray(self, nums: List[int]) -> bool:

class Solution:
    def divideArray(self, nums: List[int]) -> bool: