leetcode

#include <iostream>
#include <vector>

using namespace std;

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

int main()
{
    Solution solution;
    vector<int> num;
    vector<int> result;
    int target, N, tmp;
    cin >> N;
    for (int i = 0; i < N; i++)
    {
        cin >> tmp;
        num.push_back( tmp );
    }
    cin >> target;
    result = solution.twoSum(num, target);
    cout << result[ 0 ] << " " << result [ 1 ] << endl;
    return 0;
}