Using C language, modify the given code to make it a stack of strings: #include
Using C language, modify the given code to make it a stack of strings:
#include <stdio.h>
#include <stdlib.h>
void push(); // Function used to insert the element into the stack
void pop(); // Function used to delete the elememt from the stack
void display(); // Function used to display all the elements in the stack according to LIFO rule
struct node
{
int data;
struct node *next;
};
struct node *temp;
int main()
{
printf("Welcome to DataFlair tutorials!\n\n");
int choice;
printf ("LINKED LIST IMPLEMENTATION USING STACKS\n\n");
do
{
printf("1. Insert\n2. Delete\n3. Display\n4. Exit\n\n");
printf("Enter your choice:");
scanf("%d",&choice);
switch(choice)
{
case 1:
push();
break;
case 2:
pop();
break;
case 3:
display();
break;
case 4:
exit(0);
break;
default:
printf("Sorry, invalid choice!\n");
break;
}
} while(choice!=4);
return 0;
}
void push ()
{
int data;
struct node *pointer = (struct node*)malloc(sizeof(struct node));
if(pointer == NULL)
{
printf("Stack overflow");
}
else
{
printf("Enter the element to be inserted: ");
scanf("%d",&data);
if(temp == NULL)
{
pointer -> data = data;
pointer -> next = NULL;
temp = pointer;
}
else
{
pointer -> data = data;
pointer -> next = temp;
temp = pointer;
}
}
}
void pop()
{
int item;
struct node *pointer;
if (temp == NULL)
{
printf("Stack Underflow\n");
}
else
{
item = temp -> data;
pointer = temp;
temp = temp -> next;
free(pointer);
printf("The deleted item is %d\n",item);
}
}
void display()
{
int i;
struct node *pointer;
pointer = temp;
if(pointer == NULL)
{
printf("Stack underflow\n");
}
else
{
printf("The elements of the stack are:\n");
while(pointer!= NULL)
{
printf("%d\n",pointer -> data);
pointer = pointer -> next;
}
}
}
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