在 C++ 中将随机指针指向链表右侧的最大值节点
在这个问题中,给定一个带值、链接指针和任意指针的链表。我们的任务是让任意指针指向链表中其右侧的最大值。
我们举一个例子来理解这个问题,

在这里,我们可以看到链表的以下任意指针,指向链表右侧的最大元素。
12 -> 76, 76 -> 54, 54 -> 8, 8 -> 41
为了解决这个问题,我们需要找到节点右侧的最大元素。为此,我们将反向遍历链表,开始找到所有最大元素,然后在每个节点,我们的任意点指向我们维护的最大节点。
示例
程序展示了我们解决方案的实现,
#include<bits/stdc++.h>
using namespace std;
struct Node{
int data;
Node* next, *arbitrary;
};
Node* reverseList(Node *head){
Node *prev = NULL, *current = head, *next;
while (current != NULL){
next = current->next;
current->next = prev;
prev = current;
current = next;
}
return prev;
}
Node* populateArbitraray(Node *head){
head = reverseList(head);
Node *max = head;
Node *temp = head->next;
while (temp != NULL){
temp->arbitrary = max;
if (max->data < temp->data)
max = temp;
temp = temp->next;
}
return reverseList(head);
}
Node *insertNode(int data) {
Node *new_node = new Node;
new_node->data = data;
new_node->next = NULL;
return new_node;
}
int main() {
Node *head = insertNode(12);
head->next = insertNode(76);
head->next->next = insertNode(54);
head->next->next->next = insertNode(8);
head->next->next->next->next = insertNode(41);
head = populateArbitraray(head);
printf("Linked List with Arbitrary Pointer: \n");
while (head!=NULL){
cout<<head->data<<"->";
if (head->next)
cout<<head->next->data;
else
cout<<"NULL";
cout<<": "<<head->data<<"->";
if (head->arbitrary)
cout<<head->arbitrary->data;
else
cout<<"NULL";
cout << endl;
head = head->next;
}
return 0;
}输出
Linked List with Arbitrary Pointer: 12->76: 12->76 76->54: 76->54 54->8: 54->41 8->41: 8->41 41->NULL: 41->NULL
广告
数据结构
网络
RDBMS
操作系
Java
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP