guys..
please check this program this is already running but i have no idea to insert a queue
i need all your help guys as soon as possible. I hope that you will grant my request..
thank you...
God Bless and more power..

#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<iostream.h>
#include<DOS.H>
#include<process.h>

char stack[30],input[30];
int head=-1;
void push(char z)
{
stack[head]=z;
}
void pop()
{
printf("%c",stack[head]);
}

//void start();

void main()
{
//clrscr();
int a,b,c,d;

clrscr();
			for(a=1; a<=75;a++){
			gotoxy(2+a,24);textcolor(MAGENTA+BLINK); cprintf("\1");
	}
		for(b=1; b<=75;b++){
		gotoxy(2+b,24);textcolor(GREEN);cprintf("\2");
		delay(50);
  }
{
gotoxy(5,1);textcolor(GREEN);cprintf(<snipped personal info>);
gotoxy(5,2);textcolor(YELLOW);cprintf("\n\3 DATA STRUCTURE...");
gotoxy(5,3);textcolor(RED);cprintf(<snipped personal info>);
 }

	//infix/postfix...//
  {
gotoxy(10,8);textcolor(YELLOW);cprintf("\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5 \3               \3 \5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5\5");
gotoxy(35,8);textcolor(CYAN+BLINK);cprintf("STACK PROGRAM");
gotoxy(20,12);textcolor(MAGENTA);cprintf("\nEnter Infix:");
}
//printf("Postfix");
scanf("%s",&input);
gotoxy(30,17);textcolor(CYAN+BLINK+BROWN);cprintf("Postfix:");


 for (int x=0;x<=30;x++)
 {
 switch(input[x])
 {
	 case '1':
	 {
printf("1");
	break;
	}
case '2':
{
	 printf("2");
break;
}
	 case '3':
	 {
printf("3");
	 break;
	 }
case '4':
{
	 printf("4");
break;
}
	 case '5':
	 {
printf("5");
	 break;
	 }
case '6':
{
	 printf("6");
 break;
 }
	 case '7':
	 {
 printf("7");
	 break;
	 }
 case '8':
 {
	 printf("8");
 break;
 }
	 case '9':
	 {
 printf("9");
	 break;
	 }



 case '+':
 {
	 head++;
 push(input[x]);
	 break;
 }
	 case '-':
	 {
 head++;
	 push(input[x]);
 break;
	 }
 case '/':
 {
	 head++;
 push(input[x]);
	 break;
 }
	 case '*':
	 {
 head++;
	 push(input[x]);
 break;
	 }
 case ')':
 {
	 pop();
 break;
 }
	 case '(':
	 {

 //---------ignore---------//
	 break;
	 }
}
}
getch();
	}
commented: Not using code tags, using the antiquated version of turbo c, void main, using irrelevant header files, and posting what might be deemed c++ code in a c forum. etc etc -3
commented: Try praying to the god of code tags for a while -4

If you spent less time concentrating on how to paint the text different colours in the console window you might be getting somewhere.

commented: "If you spent less time concentrating on how to paint the text different colours" --- aha... priceless. +4

[...] I hope that you will grant my request..

We would, if you would had granted our request for you to read the forum guidelines and post in the established standard. Like here.