26. 删除有序数组中的重复项

26. 删除有序数组中的重复项

func removeDuplicates(nums []int) int {
    if len(nums) <= 1 {
        return len(nums)
    }
    replaceIdx, curIdx := 1, 1
    resLen := 1
    for curIdx < len(nums) {
        for curIdx < len(nums) && nums[curIdx] == nums[replaceIdx - 1]  {
            curIdx++
        }
        if curIdx >= len(nums) {
            continue
        }
        nums[replaceIdx] = nums[curIdx]
        replaceIdx++
        curIdx++
        resLen++
    }
    return resLen
}