C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Numerics;

public static class Solution {
 public static void Main() {
  String input;
  input = Console.ReadLine();

  BigInteger m = BigInteger.Parse(input.Split(' ')[0]);
  BigInteger n = BigInteger.Parse(input.Split(' ')[1]);

  Console.Write("{0}", fn2(m, n));
 }

 private static BigInteger fn2(BigInteger m, BigInteger n) {
  return factorial(m + n - 1) / (factorial(n - 1) * factorial(m));
 }

 private static BigInteger factorial(BigInteger number) {
  BigInteger fact = 1;
  for (BigInteger i = 1; i <= number; i++) {
   fact = fact * i;
  }

  return fact;
 }
}

​x
 
using System;
using System.Numerics;
​
public static class Solution {
 public static void Main() {
  String input;
  input = Console.ReadLine();
​
  BigInteger m = BigInteger.Parse(input.Split(' ')[0]);
  BigInteger n = BigInteger.Parse(input.Split(' ')[1]);
​
  Console.Write("{0}", fn2(m, n));
 }
​
 private static BigInteger fn2(BigInteger m, BigInteger n) {
  return factorial(m + n - 1) / (factorial(n - 1) * factorial(m));
 }
​
 private static BigInteger factorial(BigInteger number) {
  BigInteger fact = 1;
  for (BigInteger i = 1; i <= number; i++) {
   fact = fact * i;
  }
​
  return fact;
 }
}

Unhandled exception. System.TypeInitializationException: The type initializer for 'System.Data.Entity.DbContext' threw an exception.
---> System.TypeInitializationException: The type initializer for 'Z.EntityFramework.Classic.EntityFrameworkManager' threw an exception.
---> System.TypeInitializationException: The type initializer for '' threw an exception.
---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.

File name: 'System.Configuration.ConfigurationManager, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
   at Z.Expressions.CompilerManager..cctor()
   at Z.Expressions.CompilerManager.LoadEntityFrameworkClassicConfiguration()
   at Z.Expressions.ExceptionMessage.ThrowLicenseException()
   at ..cctor()
   --- End of inner exception stack trace ---
   at .()
   at Z.EntityFramework.Classic.EntityFrameworkManager..cctor()
   --- End of inner exception stack trace ---
   at Z.EntityFramework.Classic.EntityFrameworkManager.Initialize()
   at System.Data.Entity.DbContext..cctor()
   --- End of inner exception stack trace ---
   at System.Data.Entity.DbContext..ctor(String nameOrConnectionString)
   at Program.EntityContext..ctor()
   at Program.GenerateData()
   at Program.Main()
Command terminated by signal 6

Last Run:	3:14:59 pm
Compile:	0.045s
Execute:	0.17s
Memory:	10.94Mb
CPU:	0.215s

View IL Code