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题解 | #二叉搜索树的第k个节点#

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

Java

2022-05-17

0 360

题解 | #序列化二叉树#

/* public class TreeNode { int val = 0; TreeNode left = null; TreeNode right = null; public TreeNode(int val) { this.val = va...

Java

2022-05-17

0 296

题解 | #矩阵中的路径#

import java.util.*; class Solution { public boolean hasPath(char[][] board, String word) { boolean[][] visited = new boolean[board.lengt...

Java

2022-05-07

0 283

题解 | #矩形覆盖#

public class Solution { public int rectCover(int target) { if(target == 0) { return 0; } int[] dp = new int[ta...

Java

2022-05-07

0 264

题解 | #二进制中1的个数#

public class Solution { public int NumberOf1(int n) { int cnt = 0; while (n != 0) { cnt++; n &= (n - 1...

Java

2022-05-07

0 246

题解 | #表示数值的字符串#

import java.util.*; public class Solution { /** * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可 * * * @param str string字符串 * @...

Java

2022-05-07

0 270

题解 | #把数字翻译成字符串#

import java.util.*; public class Solution { /** * 解码 * @param nums string字符串数字串 * @return int整型 */ public int solve (St...

Java

2022-05-07

0 315

题解 | #扑克牌顺子#

import java.util.*; public class Solution { public boolean IsContinuous(int [] numbers) { if(numbers == null || numbers.length != 5) { ...

Java

2022-05-07

0 290

题解 | #求1+2+3+...+n#

public class Solution { public int Sum_Solution(int n) { boolean flag = (n > 0) && (n += Sum_Solution(n - 1)) > 0; r...

Java

2022-05-07

0 305

题解 | #不用加减乘除做加法#

public class Solution { public int Add(int num1,int num2) { if(num2 == 0) { return num1; } else { return A...

Java

2022-05-07

0 283