mirror of
https://github.com/chefyuan/algorithm-base.git
synced 2026-03-10 11:54:43 +00:00
代码重构 【Github Actions】
This commit is contained in:
@@ -225,7 +225,7 @@ class Solution {
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ListNode backhalf = reverse(midnode.next);
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//遍历两部分链表,判断值是否相等
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ListNode p1 = head;
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ListNode p2 = backhalf;
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ListNode p2 = backhalf;
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while (p2 != null) {
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if (p1.val != p2.val) {
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//若要还原,记得这里也要reverse
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@@ -234,11 +234,11 @@ class Solution {
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}
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p1 = p1.next;
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p2 = p2.next;
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}
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}
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//还原链表并返回结果,这一步是需要注意的,我们不可以破坏初始结构,我们只是判断是否为回文,
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//当然如果没有这一步也是可以AC,但是面试的时候题目要求可能会有这一条。
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midnode.next = reverse(backhalf);
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return true;
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return true;
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}
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//找到中点
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public ListNode searchmidnode (ListNode head) {
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@@ -247,7 +247,7 @@ class Solution {
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while (fast.next != null && fast.next.next != null) {
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fast = fast.next.next;
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slow = slow.next;
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}
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}
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return slow;
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}
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//翻转链表
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@@ -282,7 +282,7 @@ public:
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ListNode * backhalf = reverse(midnode->next);
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//遍历两部分链表,判断值是否相等
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ListNode * p1 = head;
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ListNode * p2 = backhalf;
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ListNode * p2 = backhalf;
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while (p2 != nullptr) {
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if (p1->val != p2->val) {
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//若要还原,记得这里也要reverse
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@@ -291,11 +291,11 @@ public:
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}
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p1 = p1->next;
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p2 = p2->next;
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}
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}
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//还原链表并返回结果,这一步是需要注意的,我们不可以破坏初始结构,我们只是判断是否为回文,
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//当然如果没有这一步也是可以AC,但是面试的时候题目要求可能会有这一条。
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midnode->next = reverse(backhalf);
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return true;
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return true;
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}
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//找到中间的部分
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ListNode * searchmidnode (ListNode * head) {
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@@ -304,7 +304,7 @@ public:
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while (fast->next != nullptr && fast->next->next != nullptr) {
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fast = fast->next->next;
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slow = slow->next;
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}
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}
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return slow;
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}
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//翻转链表
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@@ -326,55 +326,55 @@ JS Code:
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```javascript
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var isPalindrome = function (head) {
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if (head === null || head.next === null) {
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return true;
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}
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//找到中间节点,也就是翻转的头节点,这个在昨天的题目中讲到
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//但是今天和昨天有一些不一样的地方就是,如果有两个中间节点返回第一个,昨天的题目是第二个
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let midnode = searchmidnode(head);
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//原地翻转链表,需要两个辅助指针。这个也是面试题目,大家可以做一下
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//这里我们用的是midnode.next需要注意,因为我们找到的是中点,但是我们翻转的是后半部分
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let backhalf = reverse(midnode.next);
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//遍历两部分链表,判断值是否相等
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let p1 = head;
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let p2 = backhalf;
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while (p2 != null) {
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if (p1.val != p2.val) {
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//若要还原,记得这里也要reverse
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midnode.next = reverse(backhalf);
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return false;
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}
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p1 = p1.next;
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p2 = p2.next;
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}
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//还原链表并返回结果,这一步是需要注意的,我们不可以破坏初始结构,我们只是判断是否为回文,
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//当然如果没有这一步也是可以AC,但是面试的时候题目要求可能会有这一条。
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midnode.next = reverse(backhalf);
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if (head === null || head.next === null) {
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return true;
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}
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//找到中间节点,也就是翻转的头节点,这个在昨天的题目中讲到
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//但是今天和昨天有一些不一样的地方就是,如果有两个中间节点返回第一个,昨天的题目是第二个
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let midnode = searchmidnode(head);
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//原地翻转链表,需要两个辅助指针。这个也是面试题目,大家可以做一下
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//这里我们用的是midnode.next需要注意,因为我们找到的是中点,但是我们翻转的是后半部分
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let backhalf = reverse(midnode.next);
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//遍历两部分链表,判断值是否相等
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let p1 = head;
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let p2 = backhalf;
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while (p2 != null) {
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if (p1.val != p2.val) {
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//若要还原,记得这里也要reverse
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midnode.next = reverse(backhalf);
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return false;
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}
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p1 = p1.next;
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p2 = p2.next;
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}
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//还原链表并返回结果,这一步是需要注意的,我们不可以破坏初始结构,我们只是判断是否为回文,
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//当然如果没有这一步也是可以AC,但是面试的时候题目要求可能会有这一条。
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midnode.next = reverse(backhalf);
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return true;
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};
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//找到中点
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var searchmidnode = function (head) {
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let fast = head;
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let slow = head;
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while (fast.next != null && fast.next.next != null) {
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fast = fast.next.next;
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slow = slow.next;
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}
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return slow;
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let fast = head;
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let slow = head;
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while (fast.next != null && fast.next.next != null) {
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fast = fast.next.next;
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slow = slow.next;
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}
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return slow;
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};
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//翻转链表
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var reverse = function (slow) {
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let low = null;
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let temp = null;
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while (slow != null) {
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temp = slow.next;
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slow.next = low;
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low = slow;
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slow = temp;
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}
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return low;
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let temp = null;
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while (slow != null) {
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temp = slow.next;
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slow.next = low;
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low = slow;
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slow = temp;
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}
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return low;
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};
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```
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@@ -492,7 +492,7 @@ func isPalindrome(head *ListNode) bool {
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midNode := searchMidNode(head)
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backHalf := reverse(midNode.Next)
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// 判断左右两边是否一样(回文)
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p1, p2 := head, backHalf
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for p2 != nil {
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@@ -530,4 +530,3 @@ func reverse(node *ListNode) *ListNode {
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return pre
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}
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```
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@@ -125,7 +125,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -142,4 +141,3 @@ func hasCycle(head *ListNode) bool {
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return false
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}
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```
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@@ -298,7 +298,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -322,4 +321,3 @@ func detectCycle(head *ListNode) *ListNode {
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return nil
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}
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```
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@@ -258,7 +258,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -289,4 +288,3 @@ func insertionSortList(head *ListNode) *ListNode {
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return root.Next
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}
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```
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@@ -238,19 +238,19 @@ JS Code:
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```javascript
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var reverseList = function (head) {
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//结束条件
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if (!head || !head.next) {
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return head;
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}
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//保存最后一个节点
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let pro = reverseList(head.next);
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//将节点进行反转。我们可以这样理解 4.next.next = 4
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//4.next = 5
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//则 5.next = 4 则实现了反转
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head.next.next = head;
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//防止循环
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head.next = null;
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return pro;
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//结束条件
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if (!head || !head.next) {
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return head;
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}
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//保存最后一个节点
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let pro = reverseList(head.next);
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//将节点进行反转。我们可以这样理解 4.next.next = 4
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//4.next = 5
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//则 5.next = 4 则实现了反转
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head.next.next = head;
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//防止循环
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head.next = null;
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return pro;
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};
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```
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@@ -2,7 +2,7 @@
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>
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> 感谢支持,该仓库会一直维护,希望对各位有一丢丢帮助。
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>
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> 另外希望手机阅读的同学可以来我的 <u>[**公众号:袁厨的算法小屋**](https://raw.githubusercontent.com/tan45du/test/master/微信图片_20210320152235.2pthdebvh1c0.png)</u> 两个平台同步,想要和题友一起刷题,互相监督的同学,可以在我的小屋点击<u>[**刷题小队**](https://raw.githubusercontent.com/tan45du/test/master/微信图片_20210320152235.2pthdebvh1c0.png)</u>进入。
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> 另外希望手机阅读的同学可以来我的 <u>[**公众号:袁厨的算法小屋**](https://raw.githubusercontent.com/tan45du/test/master/微信图片_20210320152235.2pthdebvh1c0.png)</u> 两个平台同步,想要和题友一起刷题,互相监督的同学,可以在我的小屋点击<u>[**刷题小队**](https://raw.githubusercontent.com/tan45du/test/master/微信图片_20210320152235.2pthdebvh1c0.png)</u>进入。
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### [328. 奇偶链表](https://leetcode-cn.com/problems/odd-even-linked-list/)
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@@ -21,7 +21,7 @@
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示例 2:
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> 输入: 2->1->3->5->6->4->7->NULL
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> 输入: 2->1->3->5->6->4->7->NULL
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> 输出: 2->3->6->7->1->5->4->NULL
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#### 题目解析
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@@ -54,7 +54,7 @@ class Solution {
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odd = odd.next;
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even.next = odd.next;
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even = even.next;
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}
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}
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//链接
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odd.next = evenHead;
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return head;
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@@ -81,7 +81,7 @@ public:
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odd = odd->next;
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even->next = odd->next;
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even = even->next;
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}
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}
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//链接
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odd->next = evenHead;
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return head;
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@@ -98,15 +98,15 @@ var oddEvenList = function (head) {
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even = head.next,
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evenHead = even;
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while (odd.next && even.next) {
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//将偶数位合在一起,奇数位合在一起
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odd.next = even.next;
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odd = odd.next;
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even.next = odd.next;
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even = even.next;
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}
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//链接
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odd.next = evenHead;
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return head;
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//将偶数位合在一起,奇数位合在一起
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odd.next = even.next;
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odd = odd.next;
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even.next = odd.next;
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even = even.next;
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}
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//链接
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odd.next = evenHead;
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return head;
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};
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```
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@@ -195,7 +195,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -222,4 +221,3 @@ func deleteDuplicates(head *ListNode) *ListNode {
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return root.Next
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}
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```
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@@ -188,7 +188,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -214,4 +213,3 @@ func partition(head *ListNode, x int) *ListNode {
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return headSmall.Next
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}
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```
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@@ -264,7 +264,6 @@ class Solution {
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}
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```
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GoCode:
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```go
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@@ -307,4 +306,3 @@ func reverse(head *ListNode) *ListNode {
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return pre
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}
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```
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@@ -147,7 +147,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -173,4 +172,3 @@ func mergeTwoLists(l1 *ListNode, l2 *ListNode) *ListNode {
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return root.Next
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}
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```
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@@ -164,7 +164,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -182,4 +181,3 @@ func getKthFromEnd(head *ListNode, k int) *ListNode {
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return after
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}
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```
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@@ -136,7 +136,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -150,4 +149,3 @@ func middleNode(head *ListNode) *ListNode {
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return slow
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}
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```
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@@ -268,7 +268,6 @@ class Solution {
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}
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```
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Go Code:
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```go
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@@ -305,4 +304,3 @@ func addTwoNumbers(l1 *ListNode, l2 *ListNode) *ListNode {
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return root.Next
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}
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```
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Reference in New Issue
Block a user