```C
#include <stdlib.h>
#include <stdio.h>
#include <time.h> //random
#include <windows.h>//colors


#define N 40
#define A 'O' //alive cell
#define B ' ' //dead cell

typedef struct _variables
{
  int i;
  int j;
  int random;
  int cellcounter;
  char tab[N][N];
} varstruct, *structvar;


//prototypes
void create(varstruct p);
void process(varstruct p);
void display(varstruct p);
//


void display(varstruct p)
{
   for (p.i = 0; p.i < N; p.i++)
  {
        for(p.j = 0; p.j < N; p.j++)
        {
          printf("%c", p.tab[p.j][p.j]);

        }
        printf("\n");
    }

   //getchar();
   system("cls");
   process(p);
}

void process(varstruct p)
{
  for(p.i = 0; p.i < N; p.i++)
  {
       p.cellcounter = 0;
       if(p.tab[p.i][p.i] == A)
           p.cellcounter++;
       if(p.tab[p.i-1][p.i] == A)
           p.cellcounter++;
       if(p.tab[p.i+1][p.i] == A)
           p.cellcounter++;
       if(p.tab[p.i][p.i+1] == A)
           p.cellcounter++;
       if(p.tab[p.i][p.i-1] == A)
           p.cellcounter++;
       if(p.tab[p.i+1][p.i+1] == A)
           p.cellcounter++;
       if(p.tab[p.i+1][p.i-1] == A)
           p.cellcounter++;
       if(p.tab[p.i-1][p.i+1] == A)
           p.cellcounter++;
       if(p.tab[p.i-1][p.i-1] == A)
           p.cellcounter++;

        // printf("%d\n", p.cellcounter);
       if(p.cellcounter >= 3)
       {
        // printf("Live cell placed for this spot\n");
         p.tab[p.i][p.i] = A;
       }
       else if(p.cellcounter < 3)
       {
        // printf("Dead cell placed for this spot\n");
         p.tab[p.i][p.i] = B;
       }
  }//end for i loop
   //getchar();
   system("cls");
   display(p);

}

void create(varstruct p)
{
  //create
    for(p.i = 0; p.i <= N; p.i++)
  {
    p.random = rand()%2+1;
    if(p.random == 1)
      p.tab[p.i][p.i] = A;
    else if (p.random == 2)
      p.tab[p.i][p.i] = B;
  }

  //display

  for (p.i = 0; p.i < N; p.i++)
  {
        for(p.j = 0; p.j < N; p.j++)
        {
          printf("%c", p.tab[p.j][p.j]);

        }
        printf("\n");
    }
   //getchar();
   system("cls");
   process(p);

}


int main()
{
  srand(time(NULL));//seeding
  varstruct p;
  create(p);
  //getchar();
  return 0;
}

```