class Solution { public: vector<int> twoSum(vector<int> &numbers, int target) { vector<int>output; int i,j; for(i=0;i<numbers.size()-1;i++) { for(j=numbers.size()-1;j>i;j--) { if(numbers[i]+numbers[j]==target) { output.push_back(i+1); output.push_back(j+1); } } } return output; } };