/*program for implementing Stack Operations*/
#include<stdio.h>
#include<conio.h>
int stack[10],top=-1; //global declaration
void push();  //declaring functions
void pop();
void display();
void main()
{
int ch;
printf(“>>> StackOperations <<<\n\n);
do
{
printf(\n 1.Push”);
printf(\n 2.Pop”);
printf(\n 3.Display”);
printf(\n 4.Exit”);
printf(\n Enter your choice: “);
scanf(“%d”,&ch);
if(ch==1)
push();
else if(ch==2)
pop();
else if(ch==3)
display();
else if(ch==4)
printf(\n\nEnd Of program”);
}while(ch!=4);
}
//to push elements in a stack
void push()
{
if(top>9)
printf(\n Stack Overflow”);
else
{
top=top+1;
printf(\n Enter a value: “);
scanf(“%d”,&stack[top]);
}
}
//to pop/delete stack elements
void pop()
{
if(top==-1)
printf(\n Stack Overflow. No Elements to pop”);
else
{
printf(“%d is deleted..”,stack[top]);
top–;
}
}
//displaying stack elements
void display()
{
int i;
if(top==-1)
printf(\n Stack underflow. No elements to display..”);
else
{
printf(\n The stack elements are: “);
for(i=0;i<=top;i++)
{
printf(\t %d”,stack[i]);
}
}
}

Output:

stack-operations-output 

 

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