two-sum.cpp

// Given an array of integers, return indices of the two numbers such that they add up to a specific target.
//
// You may assume that each input would have exactly one solution, and you may not use the same element twice.
//
// Example:
//
//
// Given nums = [2, 7, 11, 15], target = 9,
//
// Because nums[0] + nums[1] = 2 + 7 = 9,
// return [0, 1].
//
//


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