#include<stdio.h>
#include<conio.h>
#include<process.h>
#include"goto.c"
void line(void);
void cross(void);
int main()
{
clrscr();
int a[9][9]={8,6,7,5,4,2,3,9,1,
	      4,3,2,9,1,8,5,7,6,
	      9,5,1,7,6,3,4,2,8,
	      5,2,9,6,8,4,7,1,3,
	      7,4,8,3,5,1,2,6,9,
	      6,1,3,2,7,9,8,5,4,
	      1,8,5,4,2,6,9,3,7,
	      2,9,6,8,3,7,1,4,5,
	      3,7,4,1,9,5,6,8,2},
    b[9][9]= {8,6,' ',' ',' ',' ',' ',9,' ',
	      4,' ',2,' ',1,' ',5,' ',' ',
	      ' ',5,' ',7,' ',3,' ',' ',8,
	      5,' ',' ',6,8,4,' ',1,' ',
	      ' ',4,' ',' ',' ',' ',2,6,' ',
	     ' ',' ',3,2,7,9,8,' ',4,
	      ' ',' ',' ',' ',' ',6,' ',' ',7,
	      2,' ',6,8,3,7,1,' ',' ',
	      ' ',7,4,' ',' ',' ',' ',8,2},i,j,r=0,c=0,ch,n;
 
textcolor(55);
{cprintf("\n        READ THE INSTRUCTIONS CAREFULLY");
printf("\n\n\n");
textcolor(GREEN);
cprintf("1.) FILL NO.S FROM 1 TO 9 IN EVERY ROW , COLUMN & 3*3 BOX");
printf("\n");
cprintf(" 2.) NO Number SHOULD REPEAT MORE THAN ONCE");}
delay(10000);
	textcolor(55);
clrscr();
for(i=0;i<9;i++)
	{
	printf("\n");
	for(j=0;j<9;j++)
	{printf("%3d",b[i][j]);
	if (b[i][j]==32)
	printf("\b\b _");}
	printf("\n");
	}
gotorc(0,0);
printf("%c",218);
for(i=0;i<17;i++)
printf("\n%c",179);
printf("\n%c",192);
line();
 
gotorc(0,1);line();
gotorc(6,1);line();
gotorc(12,1);line();
gotorc(0,9);cross();
gotorc(0,18);cross();
gotorc(0,27);cross();
gotorc(6,31);
printf("1.use errow key to move");
gotorc(7,31);
printf("2.press insert to insert a no. & then press enter");
gotorc(8,31);
printf("3.insert a no. at blank given");
gotorc(0,0);
while(1)
{
 ch=getkey();
 switch(ch)
 {
 case 77:
 gotorc(r,++c);
 break;
 case 80:
 {
 gotorc(++r,c); break;
 }
 case 75:
 {
 gotorc(r,--c);  break;
 }
 case 1:
 exit(0);
 case 72:
 gotorc(--r,c);break;
 case 82:
 scanf("%d",&n);
 gotorc(r,c);
 printf("%d",n);
 }
 }
getch();
return(0);
}
 
 
void line(void)
{
int i;
for(i=0;i<27;i++)
cprintf("%c",196);
}
 
 
void cross(void)
{
int i;
for(i=0;i<=18;i++)
 {
 if(i==0)
 cprintf("%c\n",194);
 else if(i==6||i==12)
 cprintf("\b%c\n",197);
 else if(i==18)
 cprintf("\b%c\n",193);
 else
 cprintf("\b%c\n",179);
 }
 }