Problem:
Score : 100 points

Problem Statement

There are three houses on a number line: House 1, 2 and 3, with coordinates A, B and C, respectively.
Print Yes if we pass the coordinate of House 3 on the straight way from House 1 to House 2 without making a detour, and print No otherwise.

Constraints

0\leq A,B,C\leq 100

A, B and C are distinct integers.

Input

Input is given from Standard Input in the following format:

A B C

Output

Print Yes if we pass the coordinate of House 3 on the straight way from House 1 to House 2 without making a detour, and print No otherwise.

Sample Input 1

3 8 5

Sample Output 1

Yes

We pass the coordinate 5 on the straight way from the house at coordinate 3 to the house at coordinate 8.

Sample Input 2

7 3 1

Sample Output 2

No

Sample Input 3

10 2 4

Sample Output 3

Yes

Sample Input 4

31 41 59

Sample Output 4

No

Solution in C# (Mono 4.6.2.0) (judge verdict: Runtime Error)

using System;
namespace D
{
    class Dmondai
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            int[] a = new int[n];
            for(int i=0;i<n;i++){
                a[i] = int.Parse(Console.ReadLine());
            }

            int s = 0;
            for(int i=0;i<n;i++){
                s += a[i];
            }

            int[,] dp = new int[n+1,s+1];
            int[,] dp2 = new int[n+1,s+1];
            dp[0,0] = 1;
            dp2[0,0] = 1;

            for(int i=1;i<n+1;i++){
                for(int j=0;j<s+1;j++){
                    if (j+a[i-1] <= s){
                        dp[i,j+a[i-1]] += dp[i-1,j];
                        dp2[i,j+a[i-1]] += dp2[i-1,j];
                    }
                    dp[i,j] += dp[i-1,j]*2;
                    dp2[i,j] += dp2[i-1,j];
                }
            }

            int ans = 1;
            for(int i=0;i<n;i++){
                ans *= 3;
            }
            for(int i=(s+1)/2;i<s+1;i++){
                ans -= dp[n,i]*3;
            }

            if(s%2==0){
                ans += dp2[n,s/2] * 3;
            }

            Console.WriteLine((ans%998244353).ToString());
        }
    }
}