167. Sum of two numbers II - input ordered array - Double pointers

class Solution {
    
public:
    vector<int> twoSum(vector<int>& numbers, int target) {
    
        int left = 0, right = numbers.size() - 1;
        while(left < right){
    
            if(numbers[left] + numbers[right] == target)
                return {
    left + 1, right + 1};
            while(numbers[left] + numbers[right] > target)  // use while Can improve efficiency 
                right--;
            while(numbers[left] + numbers[right] < target)
                left++;
        }
        return {
    -1, -1};
    }
};

Accepted
21/21 cases passed (8 ms)
Your runtime beats 28.77 % of cpp submissions
Your memory usage beats 5.03 % of cpp submissions (15.3 MB)