题目描述 Farmer John has taken the cows to a vacation out on the ocean! The cows are living on N (1 <= N <= 15) islands, which are located on an R x C grid (1 <= R, C <= 50). An island is a maximal connected group of squares on the grid that are m…

P3070 [USACO13JAN]岛游记Island Travels 题目描述 Farmer John has taken the cows to a vacation out on the ocean! The cows are living on N (1 <= N <= 15) islands, which are located on an R x C grid (1 <= R, C <= 50). An island is a maximal connected gro…

BZOJ_3049_[Usaco2013 Jan]Island Travels _状压DP+BFS Description Farmer John has taken the cows to a vacation out on the ocean! The cows are living on N (1 <= N <= 15) islands, which are located on an R x C grid (1 <= R, C <= 50). An island is a…

题面 好像没啥可说的,就当练码力了...... 先用BFS跑出岛屿,然后跑最短路求岛屿间的距离,最后状压DP得出答案 注意细节,码码码2333 #include<set> #include<queue> #include<cstdio> #include<cstring> #include<algorithm> using namespace std; ,M=,L=; ][]={{,},{,-},{,},{-,}}; struct a { int…

2019年的4月跑去薄荷岛玩了!其实是一个比较小众的海岛,感觉那边还是比较穷的,但是景色真的好好啊!而且我们两个人,最后包括前期买水母服.浮潜面罩.防晒霜什么的,总共花费才人均5000+,非常划算了! 由于时猪的假期比较紧张,我们实际纯玩的时间其实就是4天(Day1和Day5实际只有半天纯玩),大概如下: Day1:到达薄荷岛,瞎逛 Day2:薄荷岛陆地游 Day3:薄荷岛跳岛游 Day4:到达锡岛,半环岛 Day5:半环剩下岛,回了 交通 我们是从武汉出发的,没有直飞菲律宾首都马尼拉的飞机,更…

Description Farmer John has taken the cows to a vacation out on the ocean! The cows are living on N (1 <= N <= 15) islands, which are located on an R x C grid (1 <= R, C <= 50). An island is a maximal connected group of squares on the grid tha…

这是今天下午的互测题,只得了60多分 分析一下错因: $dis[i][j]$只记录了相邻的两个岛屿之间的距离,我一开始以为可以,后来$charge$提醒我有可能会出现来回走的情况,而状压转移就一次,无法实现来回走的情况,所以加了一个类似$floyed算法$的三重循环来更新每个点的距离,然后状态转移就可以了,枚举起点和终点,最后统计答案 #include<cstdio> #include<cstring> #include<algorithm> using namespa…

Search GO 说明:输入题号直接进入相应题目,如需搜索含数字的题目,请在关键词前加单引号 Problem ID Title Source AC Submit Y 1000 A+B Problem 10983 18765 Y 1036 [ZJOI2008]树的统计Count 5293 13132 Y 1588 [HNOI2002]营业额统计 5056 13607 1001 [BeiJing2006]狼抓兔子 4526 18386 Y 2002 [Hnoi2010]Bounce 弹飞绵羊 43…

SFC游戏列表 日文名 中文译名 英文版名 发行日期 发行商 スーパーマリオワールド 超级马里奥世界 Super Mario World 1990年11月21日 任天堂 エフゼロ F-Zero F-Zero 1990年11月21日 任天堂 ボンバザル 爆破精灵 Bombuzal 1990年12月1日 コトブキシステム アクトレイザー 雷莎出击 ActRaiser 1990年12月16日 艾尼克斯 ポピュラス 上帝也疯狂 Populous 1990年12月16日 Imagineer グラディウスⅢ…

原文地址:http://mp.weixin.qq.com/s?__biz=MzA4MTIwNTczMQ==&mid=2651345594&idx=3&sn=2741ab73212d58724d595b2a4f0d3cb2&scene=1&srcid=04203uT6THMEHiiH5KOpovgj#wechat_redirect 面对历史上最大规模的VR产品来袭之际,德银观察到一些核心趋势: 趋势一:基于台式机的VR产品预订势头火爆,市场需求超出预期. 趋势二:移动…

gcc name.c -o name;   ./name或者gcc name.c -o name &&  ./name;同时执行关键字:void sizeof(运算符,它能告诉你某样东西在储存器中占多少字节.例:sizeof(int)返回4,sizeof("Turtles!")返回9,其中包含8个字符外加\0结束字符.)1.puts可以输出,与printf用法类似. ========================== 2.scanf输入.例: /*假设人名小于20个字…

https://files.cnblogs.com/files/Winniechen/usaco2012-2013.pdf 做的不是很好,还请见谅! 如果有什么疑问,可以QQ上找我. QQ号:1967199892 附上代码: BZOJ3010: [Usaco2012 Dec]Gangs of Istanbull #include <cstdio> #include <cmath> #include <algorithm> #include <iostream>…

本博客逐步分析Akka Streams的源码,当然必须循序渐进,且估计会分很多篇,毕竟Akka Streams还是比较复杂的. implicit val system = ActorSystem("QuickStart") implicit val materializer = ActorMaterializer() 在使用Streams相关的API时,上面两个对象是必须创建的.ActorSystem不再说了,我们来看ActorMaterializer. /** * An ActorM…

网址:https://learning.oreilly.com/library/view/graph-algorithms-/9781492060116/ 你肯定没有读过这本书,因为这本书的发布日期是2019年5月.本文会覆盖该书的大部分内容,读完这篇,你能够了解图算法的基本概念.关于此书,作为市面上为数不多的面向数据科学应用的图算法书籍,写的比较全面系统和易懂.当然,书在细节上的提高空间还有很多.今天内容很多,坐稳~ 目录 图算法 & 图分析 图基础知识 连通图与非连通图 未加权图与加权图 有…

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. Find the maximum area of an island…

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. Find the maximum area of an island…

You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one isla…

You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one isla…

这个题使用深度优先搜索就可以直接遍历 DFS递归方法: class Solution { public: vector<vector<,},{,-},{,},{,}}; int maxAreaOfIsland(vector<vector<int>>& grid) { ; ].size(); ;i<m;i++){ ;j<n;j++){ ) continue; ; dfs(grid,cnt,i,j); res=res>cnt?res:cnt; }…

You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one isla…

https://leetcode.com/problems/island-perimeter/ 在一个N×N的矩阵中,N<100,1代表岛,0代表海,岛内没有海,求岛的周长 [[0,1,0,0], [1,1,1,0], [0,1,0,0], [1,1,0,0]] Answer: 16 Explanation: The perimeter is the 16 yellow stripes in the image below: 由正方形组成的不规则图形的周长和正方形个数有什么关系? 这个就是这题的…

6.4 A bunch of people are living on an island, when a visitor comes with a strange order: all blue-eyed people must leave the island as soon as possible. There will be a flight out at 8:00pm every evening. Each person can see everyone else's eye colo…

转载请注明出处:http://blog.csdn.net/u012860063 题目链接:pid=4280">http://acm.hdu.edu.cn/showproblem.php?pid=4280 Problem Description In the vast waters far far away, there are many islands. People are living on the islands, and all the transport among the is…

主要题意是:大海之间有岛,有的岛之间有桥,问你岛的个数,桥的个数,以及没有桥联通岛的个数,其中最后一次输入的没有回车,不注意的话最后一次会被吞,第二,桥的两端的标记是“X”(X也代表陆地),“X”的四周都可以有“B”形成的桥,一开始没写好,后来根据“X”标记所有的桥只能走一次然后标记……总之,虽然是水题,写出来还是蛮开心的…… #include <iostream> #include <cstdio> #include <cstdlib> #include <al…

  1791: [Ioi2008]Island 岛屿  Time Limit: 20 Sec  Memory Limit: 162 MB Submit: 908  Solved: 159 [Submit][id=1791" target="_blank">Status] Description 你将要游览一个有N个岛屿的公园.从每个岛i出发,仅仅建造一座桥.桥的长度以Li表示.公园内总共同拥有N座桥. 虽然每座桥由一个岛连到还有一个岛.但每座桥均能够双向行走.同一…

You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one isla…

1791: [Ioi2008]Island 岛屿 Time Limit: 20 Sec  Memory Limit: 162 MBSubmit: 1826  Solved: 405[Submit][Status][Discuss] Description 你将要游览一个有N个岛屿的公园.从每一个岛i出发,只建造一座桥.桥的长度以Li表示.公园内总共有N座桥.尽管每座桥由一个岛连到另一个岛,但每座桥均可以双向行走.同时,每一对这样的岛屿,都有一艘专用的往来两岛之间的渡船. 相对于乘船而言,你更喜欢…

Island(IOI 2008) Description 你准备浏览一个公园,该公园由 N 个岛屿组成,当地管理部门从每个岛屿 i 出发向另外一个岛屿建了一座长度为 L_i 的桥,不过桥是可以双向行走的.同时,每对岛屿之间都有一艘专用的往来两岛之间的渡船.相对于乘船而言,你更喜欢步行.你希望经过的桥的总长度尽可能长,但受到以下的限制: 可以自行挑选一个岛开始游览. 任何一个岛都不能游览一次以上. 无论任何时间,你都可以由当前所在的岛 S 去另一个从未到过的岛 D.从 S 到 D 有如下方法: 步…

数unique island, 比如 110000 110001 001101 101100 100000 总共两个unique岛,不是四个 方法可以是记录每次新的岛屿搜索的路径,left,right,up,down, 作为标志是否相同的key,存hashset package fbOnsite; import java.util.*; public class UniqueIsland { public int countIsland(int[][] grid) { HashSet<Strin…

Character level language model - Dinosaurus land Welcome to Dinosaurus Island! 65 million years ago, dinosaurs existed, and in this assignment they are back. You are in charge of a special task. Leading biology researchers are creating new breeds of…