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Copy pathStackUsingLinkedList.cpp
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80 lines (71 loc) · 1.26 KB
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#include<stdio.h>
#include <stdlib.h>
struct node {
int info;
struct node *next;
};
typedef struct node NODE;
void display(NODE *head) {
if(head == NULL){
printf("Stack is empty\n");
}
NODE *p = head;
while (p != NULL) {
printf("%d ", p->info);
p = p->next;
}
}
NODE *insertStart(NODE *head, int y) {
NODE *q;
q = (NODE *) malloc(sizeof(NODE));
q->info = y;
q->next = head;
return q;
}
NODE *deleteStart(NODE *head) {
if (head == NULL) {
printf("Stack is empty");
return NULL;
}
NODE *p = head;
head = head->next;
printf("Delete element is: %d\n",p->info);
free(p);
return head;
}
int main() {
NODE *head=NULL;
int c = 0;
int ele, tmp;
while (1) {
system("clear");
printf("1. Insert an element in Stack.\n");
printf("2. Delete an element from Stack.\n");
printf("3. Display the elements of Stack.\n");
printf("4. Exit.\n");
printf("Enter your choice: ");
scanf("%d", &c);
switch (c) {
case 1:
printf("Enter a element to insert:");
scanf("%d",&tmp);
head=insertStart(head,tmp);
break;
case 2:
head=deleteStart(head);
break;
case 3:
display(head);
break;
case 4:
return 0;
break;
default:
printf("Wrong choice\n");
break;
}
getchar();
getchar();
}
return 0;
}