摘要：
```java /*数据结构单向链表基本操作 节点类 */ import java.util.Iterator; import java.util.function.Consumer; public class shujujiegou implements Iterable {//整体 privat 阅读全文
摘要：
A. The Man who became a God time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Kars is tired and 阅读全文
摘要：
**最重点,哈希表** `import java.util.Scanner; import java.util.*; public class Cf1300c{ public static void main(String[] args) { Scanner sc = new Scanner(Sys 阅读全文