ericlippert

public interface I1<U> 
{
  void M(U i); // generic first
  void M(int i);
}
public interface I2<U> 
{
  void M(int i);
  void M(U i); // generic second
}

ericlippert

// This is a line-for-line C# port of a 1978 BASIC implementation of Conway's Life;
// bugs are included as they were in the original program.
// See https://ericlippert.com/2021/02/17/life-part-38/ and 
// https://ericlippert.com/2021/02/23/life-part-39/ for details.

using System;
using static System.Math;

public class Program
{

ericlippert

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

// An immutable stack
//
// Note that the class is abstract with a private 
// constructor; this ensures that only nested classes
// may be derived classes.