167-Two-Sum-II---Input-Array-Is-Sorted.cpp

class Solution {
public:
  vector<int> twoSum(vector<int> &numbers, int target) {
    int l = 0, r = numbers.size() - 1;

    while (l < r) {
      if (numbers[l] + numbers[r] == target)
        return { l + 1, r + 1 };

      if (numbers[l] + numbers[r] > target)
        r--;
      else
        l++;
    }

    return {};
  }
};