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全部文章 / 题解（共163篇）

变态跳台阶

变态跳台阶 public class Solution { public int JumpFloorII(int target) { if(target <= 2) return target; int[] v = new int[target + 1]...

2021-01-21

1 436

镜像一棵二叉树

镜像一棵二叉树 class Solution { public void Mirror(TreeNode root) { if(root == null) return; TreeNode temp = root.left; root.left...

2021-01-21

1 443

设计类

import java.util.*; class TDate{ private int year, month, day; TDate(int y, int m, int d){year = y; month = m; day = d;} @Override pub...

2021-01-17

1 470

质数

import java.util.*; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); int r = 0; ...

2021-01-17

1 567

Map

import java.util.*; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); Map<Intege...

2021-01-17

1 479

利用TreeSet的有序性、无重复性

利用TreeSet的有序性、无重复性： import java.util.*; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); ...

2021-01-17

1 657

0和1

import java.util.*; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); String s = sc...

2021-01-17

1 474

辗转相除法

辗转相除法： import java.util.*; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); while ...

2021-01-17

1 514

%02d

import java.util.*; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); String[] s = ...

2021-01-17

2 567

六进制

import java.util.*; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); int n = sc.ne...

2021-01-17

1 642