using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        int[] result = TwoSum(new int[] {3,2,4}, 6);

        Console.WriteLine(result[0].ToString() + " + " + result[1].ToString());

    }

    public static int[] TwoSum(int[] nums, int target) {

        int a = 0;

        int b = 0;

        for(a = 0; a < nums.Length; a++)

        {

            for(b = (a + 1); b < nums.Length; b++)

            {

                if((nums[a] + nums[b]) == target) 

                {

                    //break;

                    return new int[] { a, b };

                }

            }

        }

        return new int[] { a, b };

    }

    public static int[] TwoSum_NotWorking(int[] nums, int target) {

        int a = 0;

        int b = 0;

        foreach(int num in nums)

        {

            int[] temp = nums.Where(s => (Array.IndexOf(nums, s) != Array.IndexOf(nums, num))).ToArray();

            if((target - num) == target) temp = nums.Where(s => (Array.IndexOf(nums, s) != Array.IndexOf(nums, num))).ToArray();

            if(temp.Contains(target - num)) 

            {

                a = num;

                b = target - num;

                break;

            }

        }

        /*if(b == 0) 

        {

            a = 0;

            b = target;

        }*/

        Console.WriteLine(a);

        Console.WriteLine(b);

        a = Array.IndexOf(nums, a);

        b = Array.IndexOf(nums, b);

        return new int[] { a, b };

    }

}