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CyC2018
2019-12-03 09:51:51 +08:00
parent 9aca94dcd3
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112 changed files with 520 additions and 520 deletions

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@ -70,7 +70,7 @@ public boolean isNumeric(char[] str) {
需要保证奇数和奇数偶数和偶数之间的相对位置不变这和书本不太一样
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/d03a2efa-ef19-4c96-97e8-ff61df8061d3.png" width="200px"> </div><br>
<div align="center"> <img src="pics/d03a2efa-ef19-4c96-97e8-ff61df8061d3.png" width="200px"> </div><br>
## 解题思路
@ -131,7 +131,7 @@ private void swap(int[] nums, int i, int j) {
设链表的长度为 N设置两个指针 P1 P2先让 P1 移动 K 个节点则还有 N - K 个节点可以移动此时让 P1 P2 同时移动可以知道当 P1 移动到链表结尾时P2 移动到第 N - K 个节点处该位置就是倒数第 K 个节点
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/6b504f1f-bf76-4aab-a146-a9c7a58c2029.png" width="500"/> </div><br>
<div align="center"> <img src="pics/6b504f1f-bf76-4aab-a146-a9c7a58c2029.png" width="500"/> </div><br>
```java
public ListNode FindKthToTail(ListNode head, int k) {
@ -165,7 +165,7 @@ public ListNode FindKthToTail(ListNode head, int k) {
在相遇点slow 要到环的入口点还需要移动 z 个节点如果让 fast 重新从头开始移动并且速度变为每次移动一个节点那么它到环入口点还需要移动 x 个节点在上面已经推导出 x=z因此 fast slow 将在环入口点相遇
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/bb7fc182-98c2-4860-8ea3-630e27a5f29f.png" width="500"/> </div><br>
<div align="center"> <img src="pics/bb7fc182-98c2-4860-8ea3-630e27a5f29f.png" width="500"/> </div><br>
```java
public ListNode EntryNodeOfLoop(ListNode pHead) {
@ -228,7 +228,7 @@ public ListNode ReverseList(ListNode head) {
## 题目描述
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/c094d2bc-ec75-444b-af77-d369dfb6b3b4.png" width="400"/> </div><br>
<div align="center"> <img src="pics/c094d2bc-ec75-444b-af77-d369dfb6b3b4.png" width="400"/> </div><br>
## 解题思路
@ -280,7 +280,7 @@ public ListNode Merge(ListNode list1, ListNode list2) {
## 题目描述
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/84a5b15a-86c5-4d8e-9439-d9fd5a4699a1.jpg" width="450"/> </div><br>
<div align="center"> <img src="pics/84a5b15a-86c5-4d8e-9439-d9fd5a4699a1.jpg" width="450"/> </div><br>
## 解题思路
@ -308,7 +308,7 @@ private boolean isSubtreeWithRoot(TreeNode root1, TreeNode root2) {
## 题目描述
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/0c12221f-729e-4c22-b0ba-0dfc909f8adf.jpg" width="300"/> </div><br>
<div align="center"> <img src="pics/0c12221f-729e-4c22-b0ba-0dfc909f8adf.jpg" width="300"/> </div><br>
## 解题思路
@ -334,7 +334,7 @@ private void swap(TreeNode root) {
## 题目描述
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/0c12221f-729e-4c22-b0ba-0dfc909f8adf.jpg" width="300"/> </div><br>
<div align="center"> <img src="pics/0c12221f-729e-4c22-b0ba-0dfc909f8adf.jpg" width="300"/> </div><br>
## 解题思路
@ -364,7 +364,7 @@ boolean isSymmetrical(TreeNode t1, TreeNode t2) {
下图的矩阵顺时针打印结果为1, 2, 3, 4, 8, 12, 16, 15, 14, 13, 9, 5, 6, 7, 11, 10
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/48517227-324c-4664-bd26-a2d2cffe2bfe.png" width="200px"> </div><br>
<div align="center"> <img src="pics/48517227-324c-4664-bd26-a2d2cffe2bfe.png" width="200px"> </div><br>
## 解题思路