安装Fedora 24在试用虚拟机时发现无法ping通外网. 我傻傻地以为是软件问题. 问题描述: 尝试ping程序来测试网络连通性: (我之前也是ping百度,后来在为了少打字百度了一些比较短的域名. 比如: "to." , "g.cn" , "j.mp" 等等.) (http://wenku.baidu.com/link?url=oSb0I5xzI1UBhU3aKTXoWll7PYaIm0zNiORJbx_h6PlT-bURWFOCXkW9W…

 省赛B题....手写链表..其实很简单的.... 比赛时太急了,各种手残....没搞出来....要不然就有金了...注:对相邻的元素需要特判..... Problem B Boxes in a Line You have n boxes in a line on the table numbered 1~n from left to right. Your task is to simulate 4 kinds of commands: 1 X Y: move box X to the lef…

C. Inna and Candy Boxes   Inna loves sweets very much. She has n closed present boxes lines up in a row in front of her. Each of these boxes contains either a candy (Dima's work) or nothing (Sereja's work). Let's assume that the boxes are numbered fr…

boxes [英][bɒksɪz][美][bɑ:ksɪz] n.盒( box的名词复数 ); 一盒; 电视; 小亭; v.把…装入盒[箱,匣]中( box的第三人称单数 ); 拳击;   以上结果来自金山词霸…

B. Candy Boxes Problem's Link:   http://codeforces.com/contest/488/problem/B Mean: T题目意思很简单,不解释. analyse: 这道题还是很有意思的,需要考虑到各种情况才能AC. 解这个题目之前,首先要推出两条式子 x4=3x1 4x1=x2+x3 然后就是分类讨论,枚举各种情况就可. Time complexity: O(1) Source code:  // Memory Time // 1347K 0MS…

题目来源:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=39  Stacking Boxes  Background Some concepts in Mathematics and Computer Science are simple in one or two dimensions but become…

9.10 You have a stack of n boxes, with widths w., heights hir and depths drThe boxes cannot be rotated and can only be stacked on top of one another if each box in the stack is strictly larger than the box above it in width, height, and depth. Implem…

#include <bits/stdc++.h> using namespace std; ]; ][]; ][][]; ][][][]; ][][][][]; ][][][][][]; ][][][][][][]; struct node{ ]; int step; }; map<int,int> Hash; ],b[],c[]; bool check(int a[],int num,int step){ //检查有没有走过 ){ ]]>=) return true; ]]…

题目地址:http://acm.sgu.ru/problem.php?contest=0&problem=126 /* 找规律,智商不够,看了题解 详细解释:http://blog.csdn.net/ahfywff/article/details/7432524 */ #include <cstdio> #include <cmath> #include <cstring> #include <string> #include <iostrea…

http://poj.org/problem?id=1475 http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=249 Pushing Boxes Time Limit: 2000MS   Memory Limit: 131072K Total Submissions: 4662   Accepted: 1608   Special Judge Description Imagine you are standing insid…