题目链接:https://codeforces.com/contest/1089/problem/E Elma is learning chess figures. She learned that a rook can move either horizontally or vertically. To enhance her understanding of rook movement Elma’s grandmother gave Elma an 8 × 8 chess board and
Those questions Simply write down questions that ever frustrated me a little: How to convert unix timestamp to standard format in SQL? How to convert unix timestamp to standard format in R? How to download files from the remote server to local deskto
Dad is and always will be my living, breathing superhero. 在我眼里,爸爸是现实版的超级英雄,现在.将来,永远都是. From Bindi Irwin. Daddy and Mom are always superhero. Can I grow up into a qualified father? Can I set the example for my children? Maybe I have to get some specia
How to zip a file for Windows? 压缩一个文件: makecab c:/file_name.txt c:/file_name.zip 解压一个文件: expand c:/file_name.zip c:/file_name.txt How to replace in shell? 全局替换真正使用的是两个ex命令是 :g(global全局)和:s(switch替换). 替换命令的语法如下: :s / old / new / 这将把当前中模式old的第一次出现修改为
Given a non-empty 2D array grid of 0's and 1's, an island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) You may assume all four edges of the grid are surrounded by water. Count the number of distinct island
https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=513 终于开始接触图了,恩,开始接触DFS了,这道题就是求连通分量,比较简单. #include<iostream> #include<cstring> using namespace std; int m, n; //记录连通块的数量 ][]; ][]; void
Problem Description There was no donkey ,) , the down-right cell ,N-) and the cell below the up-left cell ,)..... A × grid is shown below: The donkey lived happily until it saw a tiger far away. The donkey had never seen a tiger ,and the tiger had ne
2018年很快就要结束了.Jerry在2017年年底准备开始写这个公众号时,给自己定的目标是:2018年至少保证每周发布一篇高质量的文章.如今2018年就快过去了,高质量与否需要大家来反馈,至少从量上看,已经达到我订的目标了. 当然这87篇技术文章,有31篇文章是Jerry的成都研究院同事贡献的,在这里对这些同事表示感谢.按照名字的字母顺序,依次感谢: Chen Vicky Deng Sun He Andrew Li Ben Liao Janet Ma Hongbo Peng SunShine
DZY Loves Balls Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 860 Accepted Submission(s): 467 Problem Description There are n black balls and m white balls in the big box. Now, DZY starts t
N皇后问题 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6493 Accepted Submission(s): 2951 Problem Description 在N*N的方格棋盘放置了N个皇后,使得它们不相互攻击(即任意2个皇后不允许处在同一排,同一列,也不允许处在与棋盘边框成45角的斜线上.你的任务是,对于给定的N,求出有