2341. Maximum Number of Pairs in Array

You are given a 0-indexed integer array nums. In one operation, you may do the following: - Choose two integers in nums that are equal. - Remove both integers from nums, forming a pair. The operation is done on nums as many times as possible. Return a 0-indexed integer array answer of size 2 where answer[0] is the number of pairs that are formed and answer[1] is the number of leftover integers