using System;

using System.Collections.Generic;

using Newtonsoft.Json;

​

namespace ConsoleApp2

{

    /*

        Input: nums = [2,7,11,15], target = 9

        Output: [0,1]

        Input: nums = [3,2,4], target = 6

        Output: [1,2]

        Input: nums = [3,3], target = 6

        Output: [0,1]

        Input: nums = [1,3], target = 6

        Output: []

    */

    public class Program

    {

        public static void Main(string[] args)

        {

            var solution = new Solution();

            var input = new List<int>() { 2, 7, 11, 15 };

            var target = 9;

            var output = solution.TwoSum(input, target);

            Console.WriteLine(JsonConvert.SerializeObject(output));

        }

    }

​

    public class Solution

    {

        public List<int> TwoSum(List<int> nums, int target)

        {

            return new List<int>();

        }

    }

}