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Displaying Source Code(s)
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Implentation of stack using arrays - STACK.C
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Description : Implentation of stack using arrays
Code :
/* Implentation of stack using arrays - STACK.C */
# include <stdio.h>
# include <conio.h>
# define SIZE 10
int arr[SIZE], top = -1, i ;
void push() ;
void pop() ;
void display() ;
void main()
{
int ch ;
clrscr() ;
do
{
printf("
[1].PUSH [2].POP [3].Display [4].Exit<BR>) ;
printf("
Enter your choice [1-4] : ") ;
scanf("%d", &ch) ;
switch(ch)
{
case 1 :
push() ;
break ;
case 2 :
pop() ;
break ;
case 3 :
display() ;
break ;
case 4 :
break ;
default :
printf("
Invalid option<BR>) ;
getch() ;
}
} while(ch != 4) ;
getch() ;
}
void push()
{
if(top == SIZE - 1)
{
printf("
Stack is full (overflow)<BR>) ;
getch() ;
return ;
}
top++ ;
printf("
Enter the element to PUSH : ") ;
scanf("%d", &arr[top]) ;
}
void pop()
{
if(top == -1)
{
printf("
Stack is empty (underflow)<BR>) ;
getch() ;
return ;
}
printf("
The POP element is : %d<BR>, arr[top]) ;
getch() ;
top-- ;
}
void display()
{
if(top == -1)
{
printf("
Stack is empty (underflow)<BR>) ;
getch() ;
return ;
}
printf("
The elements in stack are :
TOP") ;
for(i = top ; i >= 0 ; i--)
printf(" -> %d", arr[i]) ;
printf("<BR>) ;
getch() ;
}
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