Two Sumeasy

#include <iostream>
#include <vector>
#include <unordered_map>
using namespace std;

vector<int> twoSum(vector<int>& nums, int target) {
    // TODO: return indices of two numbers that add up to target
    return {};
}

int main() {
    vector<int> nums = {2, 7, 11, 15};
    int target = 9;
    vector<int> result = twoSum(nums, target);
    for (int i : result) cout << i << " ";
    cout << endl;
    return 0;
}