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// @Title: 美化数组的最少删除数 (Minimum Deletions to Make Array Beautiful)
// @Author: 15816537946@163.com
// @Date: 2022-03-27 10:55:15
// @Runtime: 132 ms
// @Memory: 8.7 MB
func minDeletion(nums []int) int {
	var lo, deleted int
	n := len(nums)
	for lo < n-1 {
		if nums[lo] == nums[lo+1] {
			lo++
			deleted++
			continue
		}
		lo += 2
	}

	if (n-deleted)%2 == 1 {
		return deleted + 1
	}

	return deleted

}