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 * File: PrintUtil.hpp
 * Created Time: 2021-12-19
 * Author: Krahets (krahets@163.com)
#pragma once
#include <iostream>
using namespace std;
 * @brief Definition for a singly-linked list node
struct ListNode {
    int val;
    ListNode *next;
    ListNode(int x) : val(x), next(nullptr) {}
 * @brief Generate a linked list with a vector
 * @param list 
 * @return ListNode* 
ListNode* vectorToLinkedList(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;
 * @brief Get a list node with specific value from a linked list
 * @param head 
 * @param val 
 * @return ListNode* 
ListNode* getListNode(ListNode *head, int val) {
    while (head != nullptr && head->val != val) {
        head = head->next;
    return head;

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