You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.0 KiB
49 lines
1.0 KiB
/**
|
|
* File: list_node.hpp
|
|
* Created Time: 2021-12-19
|
|
* Author: Krahets (krahets@163.com)
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <iostream>
|
|
using namespace std;
|
|
|
|
/* Definition for a singly-linked list node */
|
|
struct ListNode {
|
|
int val;
|
|
ListNode *next;
|
|
ListNode(int x) : val(x), next(nullptr) {
|
|
}
|
|
};
|
|
|
|
/* Generate a linked list with a vector */
|
|
ListNode *vecToLinkedList(vector<int> list) {
|
|
ListNode *dum = new ListNode(0);
|
|
ListNode *head = dum;
|
|
for (int val : list) {
|
|
head->next = new ListNode(val);
|
|
head = head->next;
|
|
}
|
|
return dum->next;
|
|
}
|
|
|
|
/* Get a list node with specific value from a linked list */
|
|
ListNode *getListNode(ListNode *head, int val) {
|
|
while (head != nullptr && head->val != val) {
|
|
head = head->next;
|
|
}
|
|
return head;
|
|
}
|
|
|
|
/* Free the memory allocated to a linked list */
|
|
void freeMemoryLinkedList(ListNode *cur) {
|
|
// 释放内存
|
|
ListNode *pre;
|
|
while (cur != nullptr) {
|
|
pre = cur;
|
|
cur = cur->next;
|
|
delete pre;
|
|
}
|
|
}
|