26. 删除排序数组中的重复项

26. 删除排序数组中的重复项

class Solution {
    public int removeDuplicates(int[] nums) {
        if (nums == null)
            return -1;
        if (nums.length <= 1)
            return nums.length;
        int left = 1;
        int right = 1;
        for (right = 1; right < nums.length; right++) {
            if (nums[right] != nums[right - 1]) {
                nums[left] = nums[right];
                ++left;
            }
            else {
                continue;
            }
        }
        return left;
    }
}