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题解 | #二叉树的最大深度#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * } */ public class Sol...

Java

2022-01-13

0 472

题解 | #二叉树的后序遍历#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * public TreeNode(int v...

Java

2022-01-13

0 473

题解 | #二叉树的前序遍历#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * public TreeNode(int v...

Java

2022-01-13

15 1258

题解 | #旋转字符串#

import java.util.*; public class Solution { /** * 旋转字符串 * @param A string字符串 * @param B string字符串 * @return bool布尔型 *...

Java

2022-01-02

0 377

题解 | #字符串变形#

import java.util.*; import java.util.Stack; public class Solution { public String trans(String s, int n) { // write code here St...

Java

2022-01-02

0 641

题解 | #第一个只出现一次的字符#

import java.util.HashMap; import java.util.Map; public class Solution { public int FirstNotRepeatingChar(String str) { if (str == null ||...

Java

2022-01-02

0 421

题解 | #最长公共前缀#

import java.util.*; public class Solution { public static final String EMPTY = ""; public String longestCommonPrefix(String[] strs) { ...

Java

2022-01-02

0 463

题解 | #求路径#

import java.util.*; public class Solution { /** * * @param m int整型 * @param n int整型 * @return int整型 */ public in...

Java

2021-12-28

0 361

题解 | #连续子数组的最大和#

public class Solution { public int FindGreatestSumOfSubArray(int[] array) { if (array == null || array.length == 0) { return 0...

Java

2021-12-28

0 329

题解 | #数字在升序数组中出现的次数#

public class Solution { public int GetNumberOfK(int[] array, int k) { //二分法 if (array == null || array.length < 1) { ...

Java

2021-12-25

0 361