{"id":40487,"date":"2025-05-29T09:37:43","date_gmt":"2025-05-29T01:37:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/40487.html"},"modified":"2025-05-29T09:37:43","modified_gmt":"2025-05-29T01:37:43","slug":"%e3%80%90%e6%95%b0%e6%8d%ae%e7%bb%93%e6%9e%84%e3%80%91%e5%8d%95%e9%93%be%e8%a1%a8%e7%bb%83%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/40487.html","title":{"rendered":"\u3010\u6570\u636e\u7ed3\u6784\u3011\u5355\u94fe\u8868\u7ec3\u4e60"},"content":{"rendered":"

1.\u94fe\u8868\u7684\u4e2d\u95f4\u8282\u70b9<\/h3>\n

https:\/\/leetcode.cn\/problems\/middle-of-the-linked-list\/description\/<\/span> <\/p>\n

\u7528\u5feb\u6162\u6307\u9488<\/span>\u6765\u89e3\u51b3<\/p>\n

\"\"<\/p>\n

\/**
\n * Definition for singly-linked list.
\n * struct ListNode {
\n * int val;
\n * struct ListNode *next;
\n * };
\n *\/
\nstruct ListNode* middleNode(struct ListNode* head)
\n{
\n struct ListNode*fast,*slow;
\n fast=slow=head;
\n while(fast&&fast->next)
\n {
\n slow=slow->next;
\n fast=fast->next->next;
\n }
\n return slow;
\n} <\/p>\n

\n

2.\u53cd\u8f6c\u94fe\u8868<\/h3>\n

https:\/\/leetcode.cn\/problems\/reverse-linked-list\/description\/<\/span> <\/p>\n

\u7528<\/span>
\n \u4e09\u4e2a\u6307\u9488<\/span>
\n \u6765\u89e3\u51b3<\/span> <\/p>\n

\"\" <\/p>\n

\/**
\n * Definition for singly-linked list.
\n * struct ListNode {
\n * int val;
\n * struct ListNode *next;
\n * };
\n *\/
\nstruct ListNode* reverseList(struct ListNode* head)
\n{
\n struct ListNode*n1,*n2,*n3;<\/p>\n

if(head==NULL)
\n return NULL;<\/p>\n

n1=NULL;
\n n2=head;
\n n3=n2->next;
\n while(n2)
\n {
\n \/\/\u7ffb\u8f6c
\n n2->next=n1;<\/p>\n

\/\/\u79fb\u52a8
\n n1=n2;
\n n2=n3;
\n if(n3)
\n n3=n3->next;
\n }
\n return n1;
\n} <\/p>\n

\n

3.\u5c06\u4e24\u4e2a\u6709\u5e8f\u94fe\u8868\u5408\u5e76\u4e3a\u4e00\u4e2a\u65b0\u7684\u6709\u5e8f\u94fe\u8868\u5e76\u8fd4\u56de<\/span><\/h3>\n

21. \u5408\u5e76\u4e24\u4e2a\u6709\u5e8f\u94fe\u8868 – \u529b\u6263（LeetCode）<\/p>\n

\u54e8\u5175\u4f4d<\/span>\u89e3\u51b3<\/span><\/p>\n

\"\"<\/p>\n

\/**
\n * Definition for singly-linked list.
\n * struct ListNode {
\n * int val;
\n * struct ListNode *next;
\n * };
\n *\/
\nstruct ListNode* mergeTwoLists(struct ListNode* list1, struct ListNode* list2) {
\n struct ListNode* cur1 = list1, * cur2 = list2;
\n struct ListNode* guard = NULL, * tail = NULL;<\/p>\n

guard = tail = (struct ListNode*)malloc(sizeof(struct ListNode));
\n tail->next = NULL;
\n while (cur1 && cur2)
\n {
\n if (cur1->val < cur2->val)
\n {
\n tail->next = cur1;
\n tail = tail->next;
\n cur1 = cur1->next;
\n }
\n else
\n {
\n tail->next = cur2;
\n tail = tail->next;
\n cur2 = cur2->next;
\n }
\n }<\/p>\n

if (cur1)
\n {
\n tail->next = cur1;
\n }
\n if (cur2)
\n {
\n tail->next = cur2;
\n }<\/p>\n

struct ListNode* head = guard->next;
\n free(guard);
\n return head;
\n} <\/p>\n

\n

4.\u94fe\u8868\u5206\u5272<\/h3>\n

\u73b0\u6709\u4e00\u94fe\u8868\u7684\u5934\u6307\u9488 ListNode*\u00a0pHead，\u7ed9\u4e00\u5b9a\u503cx，\u7f16\u5199\u4e00\u6bb5\u4ee3\u7801\u5c06\u6240\u6709\u5c0f\u4e8ex\u7684\u7ed3\u70b9\u6392\u5728\u5176\u4f59\u7ed3\u70b9\u4e4b\u524d，\u4e14\u4e0d\u80fd\u6539\u53d8\u539f\u6765\u7684\u6570\u636e\u987a\u5e8f，\u8fd4\u56de\u91cd\u65b0\u6392\u5217\u540e\u7684\u94fe\u8868\u7684\u5934\u6307\u9488\u3002<\/p>\n

\u94fe\u8868\u5206\u5272_\u725b\u5ba2\u9898\u9738_\u725b\u5ba2\u7f51<\/p>\n

\u54e8\u5175\u4f4d<\/span>\u89e3\u51b3<\/span><\/p>\n

\/*
\nstruct ListNode {
\n int val;
\n struct ListNode *next;
\n ListNode(int x) : val(x), next(NULL) {}
\n};*\/
\nclass Partition {
\npublic:
\n ListNode* partition(ListNode* pHead, int x) {<\/p>\n

struct ListNode*greaterGuard,*greaterTail,*lessGuard,*lessTail;
\n greaterGuard=greaterTail=(struct ListNode*)malloc(sizeof(struct ListNode));
\n lessGuard=lessTail=(struct ListNode*)malloc(sizeof(struct ListNode));
\n greaterGuard->next=lessGuard->next=NULL;<\/p>\n

struct ListNode*cur=pHead;
\n while(cur)
\n {
\n if(cur->val<x)
\n {
\n lessTail->next=cur;
\n lessTail=lessTail->next;
\n }
\n else
\n {
\n greaterTail->next=cur;
\n greaterTail=greaterTail->next;
\n }
\n cur=cur->next;
\n }
\n lessTail->next=greaterGuard->next;
\n greaterTail->next=NULL;<\/p>\n

pHead=lessGuard->next;
\n free(lessGuard);
\n free(greaterGuard);
\n return pHead;
\n }
\n}; <\/p>\n

\n

5.\u76f8\u4ea4\u94fe\u8868<\/h3>\n

160. \u76f8\u4ea4\u94fe\u8868 – \u529b\u6263（LeetCode）<\/p>\n

\"\"<\/p>\n

\/**
\n * Definition for singly-linked list.
\n * struct ListNode {
\n * int val;
\n * struct ListNode *next;
\n * };
\n *\/
\nstruct ListNode* getIntersectionNode(struct ListNode* headA, struct ListNode* headB) {
\n struct ListNode* tailA = headA, * tailB = headB;
\n int lenA = 1, lenB = 1;<\/p>\n

\/\/ \u5904\u7406\u7a7a\u94fe\u8868\u7684\u60c5\u51b5
\n if (headA == NULL || headB == NULL) {
\n return NULL;
\n }<\/p>\n

while (tailA->next)
\n {
\n tailA = tailA->next;
\n lenA++;
\n }
\n while (tailB->next)
\n {
\n tailB = tailB->next;
\n lenB++;
\n }<\/p>\n

\/\/ \u5982\u679c\u5c3e\u8282\u70b9\u4e0d\u540c，\u5219\u94fe\u8868\u4e0d\u76f8\u4ea4
\n if (tailA != tailB)
\n return NULL;<\/p>\n

int gap = abs(lenA – lenB);<\/p>\n

struct ListNode* longlist = headA, * shortlist = headB;<\/p>\n

\/\/ \u786e\u5b9a\u957f\u94fe\u8868\u548c\u77ed\u94fe\u8868
\n if (lenA > lenB)
\n {
\n longlist = headA;
\n shortlist = headB;
\n }
\n else
\n {
\n longlist = headB;
\n shortlist = headA;
\n }<\/p>\n

\/\/ \u957f\u94fe\u8868\u5148\u8d70gap\u6b65
\n while (gap–)
\n {
\n longlist = longlist->next;
\n }<\/p>\n

\/\/ \u540c\u6b65\u904d\u5386\u627e\u76f8\u4ea4\u8282\u70b9
\n while (longlist != shortlist)
\n {
\n longlist = longlist->next;
\n shortlist = shortlist->next;
\n }<\/p>\n

return longlist;
\n} <\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb478\u6b21\uff0c\u70b9\u8d5e2\u6b21\uff0c\u6536\u85cf8\u6b21\u3002\u7ed9\u4e00\u5b9a\u503cx\uff0c\u7f16\u5199\u4e00\u6bb5\u4ee3\u7801\u5c06\u6240\u6709\u5c0f\u4e8ex\u7684\u7ed3\u70b9\u6392\u5728\u5176\u4f59\u7ed3\u70b9\u4e4b\u524d\uff0c\u4e14\u4e0d\u80fd\u6539\u53d8\u539f\u6765\u7684\u6570\u636e\u987a\u5e8f\uff0c\u8fd4\u56de\u91cd\u65b0\u6392\u5217\u540e\u7684\u94fe\u8868\u7684\u5934\u6307\u9488\u3002\u5c06\u4e24\u4e2a\u6709\u5e8f\u94fe\u8868\u5408\u5e76\u4e3a\u4e00\u4e2a\u65b0\u7684\u6709\u5e8f\u94fe\u8868\u5e76\u8fd4\u56de\u3002\u73b0\u6709\u4e00\u94fe\u8868\u7684\u5934\u6307\u9488 ListNode*<\/p>\n","protected":false},"author":2,"featured_media":40483,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,87,1813],"topic":[],"class_list":["post-40487","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-linux","tag-87","tag-1813"],"yoast_head":"\n\u3010\u6570\u636e\u7ed3\u6784\u3011\u5355\u94fe\u8868\u7ec3\u4e60 - 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