摘要：
class LRU{ static class Node{ public int key; public int val; public Node next; public Node prev; public Node(int k,int v){ this.key = k; this.v = v; 阅读全文
摘要：
/** 归并排序 */ class Solution{ // static int count = 0; public static void main(String[] args) { int[] nums = new int[]{7,3,2,6,0,1,5,4}; merge(nums,0,nu 阅读全文