LeetCode167. 两数之和II_输入有序数组

输入：numbers = [2,7,11,15], target = 9
输出：[1,2]
解释：2 与 7 之和等于目标数 9 。因此 index1 = 1, index2 = 2 。

输入：numbers = [2,3,4], target = 6
输出：[1,3]

输入：numbers = [-1,0], target = -1
输出：[1,2]

public int[] twoSum(int[] numbers, int target) {
        int left=0;
        int right=numbers.length-1;
        while (left < right) {
            int sum=numbers[left]+numbers[right];
            if (sum > target) {
                right--;
            } else if (sum < target) {
                left++;
            }else {
                return new int[]{++left, ++right};
            }
        }
        return null;
    }