Practice Divide Array Into Equal Pairs
Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.
Problem Statement
The array nums contains 2 * n integers. Determine whether all its entries can be divided into n pairs, using each entry exactly once, with equal values in every pair. Return true if this is possible and false otherwise.
Source: Divide Array Into Equal Pairs on LeetCode. Use the original task for its coding environment and submissions.
Examples
# Example 1
Input
nums = [3,2,3,2,2,2]
Output
true
# Example 2
Input
nums = [1,2,3,4]
Output
false
Constraints
nums.length == 2 * n
1 <= n <= 500
1 <= nums[i] <= 500
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