Program for Stack in C [Push, Pop and Display]

Here you will get the program for exhibit portrayal of the stack in C.

What is a Stack?

The stack is a LIFO (toward the end in first out) structure. It is an arranged rundown of a similar kind of components. A stack is a straight list where all additions and cancellations are allowed distinctly toward one side of the rundown. At the point when components are added to stack, it develops toward one side. So also, when components are erased from a stack, it contracts at a similar end.

Underneath I have composed a C program that performs push, pop and shows activities on a stack. It is actualized utilizing 1-D exhibit.

Program

#include<stdio.h>
#include<process.h>
#include<stdlib.h>
 
#define MAX 5	//Maximum number of elements that can be stored
 
int top=-1,stack[MAX];
void push();
void pop();
void display();
 
void main()
{
	int ch;
	
	while(1)	//infinite loop, will end when choice will be 4
	{
		printf("\n*** Stack Menu ***");
		printf("\n\n1.Push\n2.Pop\n3.Display\n4.Exit");
		printf("\n\nEnter your choice(1-4):");
		scanf("%d",&ch);
		
		switch(ch)
		{
			case 1: push();
					break;
			case 2: pop();
					break;
			case 3: display();
					break;
			case 4: exit(0);
			
			default: printf("\nWrong Choice!!");
		}
	}
}
 
void push()
{
	int val;
	
	if(top==MAX-1)
	{
		printf("\nStack is full!!");
	}
	else
	{
		printf("\nEnter element to push:");
		scanf("%d",&val);
		top=top+1;
		stack[top]=val;
	}
}
 
void pop()
{
	if(top==-1)
	{
		printf("\nStack is empty!!");
	}
	else
	{
		printf("\nDeleted element is %d",stack[top]);
		top=top-1;
	}
}
 
void display()
{
	int i;
	
	if(top==-1)
	{
		printf("\nStack is empty!!");
	}
	else
	{
		printf("\nStack is...\n");
		for(i=top;i>=0;--i)
			printf("%d\n",stack[i]);
	}
}

Output

*** Stack Menu ***

1.Push
2.Pop
3.Display
4.Exit

Enter your choice(1-4):1

Enter element to push:3

*** Stack Menu ***

1.Push
2.Pop
3.Display
4.Exit

Enter your choice(1-4):1

Enter element to push:6

*** Stack Menu ***

1.Push
2.Pop
3.Display
4.Exit

Enter your choice(1-4):3

Stack is…
6
3

*** Stack Menu ***

1.Push
2.Pop
3.Display
4.Exit

Enter your choice(1-4):2

Deleted element is 6
*** Stack Menu ***

1.Push
2.Pop
3.Display
4.Exit

Enter your choice(1-4):3

Stack is…
3

*** Stack Menu ***

1.Push
2.Pop
3.Display
4.Exit

Enter your choice(1-4):2

Deleted element is 3
*** Stack Menu ***

1.Push
2.Pop
3.Display
4.Exit

Enter your choice(1-4):2

Stack is empty!!

Remark underneath on the off chance that you have questions or discovered anything wrong in the above program for stack in C.