what is the error in this code ?
include< stdio.h>
include< conio.h>
include< iostream.h>
include< process.h>
void home(); void intro(); void range(); void start2(); void start3();
void main()
{ clrscr();
home();
getch(); }
void home() { char opt;
clrscr();
printf("********************************************************************************");
printf(" GETNUM GAME "); printf("***********"); printf("\n Introduction [I]\n"); printf(" PLAY [P]"); printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); printf("***********"); printf(" EXIT [X]\n"); printf("**************");
scanf("%c",&opt);
if(opt=='I' || opt=='i') intro();
else if(opt=='P' || opt=='p')
range();
else if(opt=='X' || opt=='x') exit(0);
else home();
}
void intro() { printf("***********"); printf(" Introduction "); printf("***********"); printf("\n\n1> Player has to select a target number and range.\n""); printf("2> Game can be started with the numbers starting from 1 to the range selected.\n"); printf("3> next player can enter the corresponding numbers.\n"); printf("\n\nLike if the range is 2 and player 1 entered 1 then player 2 can enter 2 or 3 and if player 2 then entered 3 after that player 1 has the option two enter any number from the next two consicutive numbers "); printf("\n\n Like this the player who will enter the target number will win"); }
void range() { char opt;
clrscr();
printf("********************************************************************************");
printf(" NEW GAME \n");
printf("********************************************************************************");
printf("\n\n\nSelect The Range [2/3]\n");
printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
printf("********************************************************************************");
printf(" Home [H] Exit[X]\n");
printf("********************************************************************************");
scanf("%c",&opt);
if( opt=='2' )
start2();
else if( opt=='H' || opt=='h')
home();
else if( opt=='3' )
start3();
else if( opt=='X' || opt=='x')
exit(0);
else
range();
}
void start2() { try: int i,a=0,b=0,rev=0,n; char opt;
clrscr();
printf("Enter the target number.\n");
scanf("%d",&n);
for(i=1;;i++)
{
p1: printf("Player 1 enter the number.\n");
scanf("%d",&rev);
if(rev<=n && rev<b+3 && rev>b)
a=rev;
else if(rev>n)
{ printf("Number greater than the target number %d is not allowed.\n\n",n);
goto p1;
}
else if( rev<=b && i>1 )
{ printf("Player 1 can enter number greater than %d \n",b);
goto p1;
}
else if( rev>=(b+3) && i>1 )
{ printf("Player 1 can enter number less than %d \n",b);
goto p1;
}
else if(i==1 && rev<=b || rev>=(b+3))
{ printf("Player 1 can enter 1 and 2 only.\n");
goto p1;
}
if(a==n)
break;
p2: printf("Player 2 enter the number.\n");
scanf("%d",&rev);
if(rev<=n && rev>a && rev<a+3)
b=rev;
else if(rev>n)
{ printf("Number greater than the target number %d is not allowed.\n\n",n);
goto p2;
}
else if(rev<=a )
{ printf("Player 2 can enter number greater than %d \n",a);
goto p2;
}
else if( rev>=(a+3) )
{ printf("Player 2 can enter number less than %d \n",a+3);
goto p2;
}
if(b==n)
break;
}
printf("********************************************************************************");
printf(" You Win! \n");
printf("********************************************************************************");
printf("\n\n\n\n\n\n\n\n\n\n\n");
printf("********************************************************************************");
printf("Try Again [T] Home [H] Exit [X]");
printf("********************************************************************************");
r2: scanf("%c",&opt);
if(opt=='T' || opt=='t')
goto try;
else if(opt=='H' || opt=='h')
home();
else if (opt=='X' || opt=='x')
exit(0);
else
goto r2;
getch();
}
void start3() { try: int i,a=0,b=0,rev=0,n; char opt;
clrscr();
printf("Enter the target number.\n");
scanf("%d",&n);
for(i=1;;i++)
{
p1: printf("Player 1 enter the number.\n");
scanf("%d",&rev);
if(rev<=n && rev<b+4 && rev>b)
a=rev;
else if( rev>n )
{ printf("Number greater than the target number %d is not allowed.\n\n",n);
goto p1;
}
else if(rev<=b || rev>=(b+4))
{ printf("Player 1 can enter only %d or %d or %d.\n",b+1,b+2,b+3);
goto p1;
}
if(a==n)
break;
p2: printf("Player 2 enter the number.\n");
scanf("%d",&rev);
if(rev<=n && rev>a && rev<(a+4))
b=rev;
else if( rev>n )
{ printf("Number greater than the target number %d is not allowed.\n\n",a+1,a+2,a+3);
goto p2;
}
else if( rev<=a || rev>=(a+4))
{ printf("Player 2 can enter only %d or %d or %d.\n",a+1,a+2,a+3);
goto p2;
}
if(b==n)
break;
}
printf("********************************************************************************");
printf(" You Win! \n");
printf("********************************************************************************");
printf("\n\n\n\n\n\n\n\n\n\n\n");
printf("********************************************************************************");
printf("Try Again [T] Home [H] Exit [X]");
printf("********************************************************************************");
r3: scanf("%c",&opt);
if(opt=='T' || opt=='t')
goto try;
else if(opt=='H' || opt=='h')
home();
else if (opt=='X' || opt=='x')
exit(0);
else
goto r3;
getch();
}