剑指 Offer 57. 和为s的两个数字

双指针，大了往左，小了往右

class Solution {
public:
    vector twoSum(vector& nums, int target) {
        vector res;
        int i = 0, j = nums.size()-1;
        
        while(itarget){
                j--;
            }else{
                i++;
            }
        }

        return res;

    }
};