My turbo c++ msdos ascii maze solver from 2007

MAZE.CPP

/*Maze solver-By Munawwar Firoz*/
#include<fstream.h>
#include<conio.h>
#include<string.h>
#include<dos.h>

const speed=10; /*Try changing speed to 0 and run the program*/
const long rsize=41,csize=41,randsize=(rsize*csize)+2;
void mazecopy(char maze[rsize][csize],int &row,int &column)
{
 row=39,column=40;
 strcpy(maze[0], "###############################.#.#######");
 strcpy(maze[1], "#.........#.....#.............#.#.......#");
 strcpy(maze[2], "#.#.#####.#.###.###.#######.###.#####.###");
 strcpy(maze[3], "#.#...#.#...#.#...#.....#.#...#.#.#.....#");
 strcpy(maze[4], "#.###.#.#####.#.#####.#.#.#####.#.###.###");
 strcpy(maze[5], "#...#.........#.....#.#.#.......#.#.....#");
 strcpy(maze[6], "###.#.#######.#.#.#.###.#######.#.#####.#");
 strcpy(maze[7], "#...#.#...#D..#.#.#...#.#.....#.#.......#");
 strcpy(maze[8], "#.#####.#.#####.#.###.#.#.###.#.#######.#");
 strcpy(maze[9], "#.#...#.#...#...#...#...#...#.#.........#");
 strcpy(maze[10],"#.#.#.#.###.###.###.#######.#.#########.#");
 strcpy(maze[11],"#...#...#.#...#.#.......#.#.#.......#...#");
 strcpy(maze[12],"#########.#.#######.#.#.#.#.#######.#####");
 strcpy(maze[13],"#.#.#...#.#.......#.#.#.#...#...#D#.#...#");
 strcpy(maze[14],"#.#.###.#.#######.#####.#.###.#.#.#.#.#.#");
 strcpy(maze[15],"#.......#.....#.#...#.#.....#.#...#...#.#");
 strcpy(maze[16],"#.#####.###.###.###.#.###.###.#########.#");
 strcpy(maze[17],"#.....#.#.......#.#...#.#...#.#.#.......#");
 strcpy(maze[18],"#.#.#####.#######.###.#.#.#.#.#.###.###.#");
 strcpy(maze[19],"#.#.....#...........#...#.#.#...#.....#.#");
 strcpy(maze[20],"#.#####.###########.###.#####.#######.###");
 strcpy(maze[21],"#.....#.#...#...#.#.#.#.....#.#.....#...#");
 strcpy(maze[22],"#####.#.#.#.#.#.#.#.#.#####.#.#.#.#####.#");
 strcpy(maze[23],"#.....#...#...#.....#.......#...#.#...#.#");
 strcpy(maze[24],"###.###.#########.#.#.#########.#.#.#.#.#");
 strcpy(maze[25],"#.#.#.#...#.....#.#.#.......#...#.#.#...#");
 strcpy(maze[26],"#.#.#.###.###.#.#.###.###.#.#.#####.###.#");
 strcpy(maze[27],"#.#.#...#...#.#.....#...#.#.#.....#.#...#");
 strcpy(maze[28],"#.#.###.###.###.#######.#######.###.#####");
 strcpy(maze[29],"#...#...#.#...#.#.....#...#...#.#...#.#.#");
 strcpy(maze[30],"###.###.#.###.###.###.###.###.#.#.#.#.#.#");
 strcpy(maze[31],"#.#.....#...#.#.#.#.#.....#.....#.#.....#");
 strcpy(maze[32],"#.#####.#.###.#.#.#.#######.#####.#####.#");
 strcpy(maze[33],"#.....#...#.#.....#.......#.#...#.....#.#");
 strcpy(maze[34],"#.###.###.#.#######.###.#.#.#.#.#####.###");
 strcpy(maze[35],"#...#...#.....#.#...#...#.#.#.#.....#.#.#");
 strcpy(maze[36],"#.###.#####.#.#.#####.###.#.#.#.###.#.#.#");
 strcpy(maze[37],"#...#.......#...#.#...#...#...#.#...#.#.#");
 strcpy(maze[38],"###.###.#######.#.###.#.#########.###.#.#");
 strcpy(maze[39],"#.....#.#.............#.........#.#.....M");
 strcpy(maze[40],"###D###########################.#.#######");
}
void get_the_rc(int &row,int &column,int rc)
{
		if(rc==0)
		{
		  row++;
		  if(row==rsize) row=0;
		}
		if(rc==1)
		{
		  column++;
		  if(column==csize) column=0;
		}
		if(rc==2)
		{
		  row--;
		  if(row==-1) row=rsize-1;
		}
		if(rc==3)
		{
		  column--;
		  if(column==-1) column=csize-1;
		}
}

void main()
{
  textmode(64);
  clrscr();

  register char maze[rsize][csize],randoms[randsize+2];
  int row,column,count=0;
  mazecopy(maze,row,column);
  cout<<"\nTry to solve it yourself before you look at the answer";
  cout<<"\nStarting point is M(in yellow) and ending at the D's(in blue)";
  cout<<"\nThere are three D's.So there are three solutions.Try to find each path";
  cout<<"\nPress enter to display answer\n\n";
  {
		 for(int q=0;q<rsize;q++)
		 {
			for(int r=0;r<csize;r++)
			if(maze[q][r]!='D' && maze[q][r]!='M')
			cout<<maze[q][r];
			else
			if(maze[q][r]=='D')
			textcolor(3),putch('D'),textcolor(7);
			else
			textcolor(14),putch('M'),textcolor(7);
			cout<<endl;
		 }
  }
  getch();
  clrscr();
  long double flag=0;
  int pos;
  {
		int q=0;
		for(;q<randsize;q++)
		randoms[q]='0';
		randoms[q]=0;
  }
  pos=strlen(randoms)-1;
  for(int i=0;randoms[0]<'4';i++)
  {
	 flag++;
	 if(count%10000==0)
	 {
	 count=0;
	 int crx=wherex(),cry=wherey();
	 gotoxy(50,25);
	 cout<<flag;
	 gotoxy(crx,cry);
	 }
	 count++;
	 mazecopy(maze,row,column);
	 maze[row][column]='M';
		{
		  randoms[pos]++;
		  for(int q=pos;q>0;q--)
		  if(randoms[q]>'3')
		  {
			 randoms[q]='0';
			 randoms[q-1]++;
		  }
		}//end of if(path[0]!='5' && path[0]!='\0')
	 int flagx=1;
	 for(int i=0;randoms[i]!='\0';i++)
	 {
		get_the_rc(row,column,randoms[i]-48);
		if(maze[row][column]=='.' && i!=randsize-2)
		maze[row][column]=' ';
		else
		if(maze[row][column]=='D')
		{
		  flagx=2;
		  pos=i;
		  break;
		}
		else
		{
		 flagx=0;
		 pos=i;
		 break;
		}
	 }//end of for loop
		if(flagx==2)
		{
		 int q,r;
		 int crx=wherex(),cry=wherey();
		 for(q=0;q<rsize;q++)
		 {
			for(r=0;r<csize;r++)
			if(maze[q][r]==' ')
			cout<<' ';
			else
			if(maze[q][r]=='D')
			textcolor(3),putch('D'),textcolor(7);
			else
			cout<<maze[q][r];
			cout<<endl;
		 }
		 mazecopy(maze,row,column);
		 gotoxy(crx+column,cry+row);
		 for(int i=0;randoms[i]!='\0';i++)
		 {
			get_the_rc(row,column,randoms[i]-48);
			gotoxy(crx+column,cry+row);
			if(maze[row][column]=='.')
			textcolor(2),putch('x'),delay(speed),textcolor(7);
			if(maze[row][column]=='D')
			{
			  gotoxy(50,25);
			  cout<<i/2<<" moves made";
			  getch(),clrscr();
			  break;
			}
		 }
		}
  }//end of primary for loop
  gotoxy(35,25);
  cout<<flag<<" attempts made";
  getch();
}

M = Mouse
D = Cheese? (there are 3 in the maze)

In this one it is allowed to move through gaps in walls to the opposite side.

This is how it looks like

This code can be run from dosbox (tried on linux) and copy of borland turbo C