#include<stdio.h>
#include<stdlib.h>
#define Size 4
int Top=-1, inp_array[Size];
void Push();
void Pop();
void show();
int main()
{
int choice;
while(1)
{
printf("
Operations performed by Stack");
printf("
1.Push the element
2.Pop the element
3.Show
4.End");
printf("
Enter the choice:");
scanf("%d",&choice);
switch(choice)
{
case 1: Push();
break;
case 2: Pop();
break;
case 3: show();
break;
case 4: exit(0);
default: printf("
Invalid choice!!");
}
}
}
void Push()
{
int x;
if(Top==Size-1)
{
printf("
Overflow!!");
}
else
{
printf("
Enter element to be inserted to the stack:");
scanf("%d",&x);
Top=Top+1;
inp_array[Top]=x;
}
}
void Pop()
{
if(Top==-1)
{
printf("
Underflow!!");
}
else
{
printf("
Popped element: %d",inp_array[Top]);
Top=Top-1;
}
}
void show()
{
if(Top==-1)
{
printf("
Underflow!!");
}
else
{
printf("
Elements present in the stack:
");
for(int i=Top;i>=0;--i)
printf("%d
",inp_array[i]);
}
}