#include <bits/stdc++.h>
using namespace std;
class SinglyLinkedListNode {
public:
int data;
SinglyLinkedListNode *next;
SinglyLinkedListNode(int node_data) {
this->data = node_data;
this->next = nullptr;
}
};
class SinglyLinkedList {
public:
SinglyLinkedListNode *head;
SinglyLinkedList() {
this->head = nullptr;
}
};
void print_singly_linked_list(SinglyLinkedListNode* node, string sep, ofstream& fout) {
while (node) {
fout << node->data;
node = node->next;
if (node) {
fout << sep;
}
}
}
void free_singly_linked_list(SinglyLinkedListNode* node) {
while (node) {
SinglyLinkedListNode* temp = node;
node = node->next;
free(temp);
}
}
// Complete the insertNodeAtTail function below.
/*
* For your reference:
*
* SinglyLinkedListNode {
* int data;
* SinglyLinkedListNode* next;
* };
*
*/
SinglyLinkedListNode* insertNodeAtTail(SinglyLinkedListNode* head, int data) {
// SinglyLinkedListNode* temp,*ptr;
// if(head==NULL){
// ptr->data=data;
// ptr->next=NULL;
// head=ptr;
// }else{
// temp=head;
// while(temp->next!=NULL){
// temp=temp->next;
// }
// temp->next=NULL;
// temp->data=data;
// }
// return head;
SinglyLinkedListNode *ptr = new SinglyLinkedListNode(data);
if(head==NULL){
head=ptr;
return head;
}
else{
SinglyLinkedListNode *temp = head;
while(head->next !=NULL){
head=head->next;
}
head->next = ptr;
return temp;
}
}
int main()
{
ofstream fout(getenv("OUTPUT_PATH"));
SinglyLinkedList* llist = new SinglyLinkedList();
int llist_count;
cin >> llist_count;
cin.ignore(numeric_limits<streamsize>::max(), 'n');
for (int i = 0; i < llist_count; i++) {
int llist_item;
cin >> llist_item;
cin.ignore(numeric_limits<streamsize>::max(), 'n');
SinglyLinkedListNode* llist_head = insertNodeAtTail(llist->head, llist_item);
llist->head = llist_head;
}
print_singly_linked_list(llist->head, "n", fout);
fout << "n";
free_singly_linked_list(llist->head);
fout.close();
return 0;
}
Replies to Untitled
Title |
Name |
Language |
UNIX |
When |
Insert node at tail |
Sweet Mockingbird |
cpp |
1634894901 |
2 Years ago. |
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