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A Puzzling Problem The goal of this problem is to write a program which will take from 1 to 5 puzzle pieces such as those shown below and arrange them, if possible, to form a square. An example set of pieces is shown here. The pieces cannot be rotate…
 A Puzzling Problem  The goal of this problem is to write a program which will take from 1 to 5 puzzle pieces such as those shown below and arrange them, if possible, to form a square. An example set of pieces is shown here. The pieces cannot be rota…
题目链接: https://vjudge.net/problem/UVA-387 思路: 非常有意思的拼图,深搜+回溯, 输出硬伤:除了第一次之外,每次先输空格,再输出结果, 以及可能给的数据拼不成4*4表格的情况. 1 #include<iostream> 2 #include<cstdio> 3 #include<cstring> 4 using namespace std; 5 int vis[5][5]; 6 int g[10010][5][5]; 7 int…
题意: 给你n块碎片,这些碎片不能旋转.翻折. 问你能不能用当中的某些块拼出4*4的正方形. 思路: 精确覆盖裸题了 建图就是看看每一个碎片在4*4中能放哪些位置,这个就作为行. 列就是4*4=16个位置再加上n个碎片也就是16+n 然后注意下成立的判定就好了 代码: #include"stdio.h" #include"algorithm" #include"string.h" #include"iostream" #inc…
题目 Volume 0. Getting Started 开始10055 - Hashmat the Brave Warrior 10071 - Back to High School Physics 10300 - Ecological Premium 458 - The Decoder 494 - Kindergarten Counting Game 414 - Machined Surfaces 490 - Rotating Sentences 445 - Marvelous Mazes…
转自:http://blog.csdn.net/shahdza/article/details/7986037 POJ3740 Easy Finding [精确覆盖基础题]HUST1017 Exact cover [精确覆盖基础]HDOJ3663 Power Stations [精确覆盖]ZOJ3209 Treasure Map [精确覆盖]HDOJ2828 Lamp [精确覆盖+重复覆盖判独]HDOJ3498 whosyourdaddy [重复覆盖]HDOJ3529 Bomberman - J…
转自——http://blog.csdn.net/qwe20060514/article/details/8112550 =============================以下是最小生成树+并查集======================================[HDU]1213   How Many Tables   基础并查集★1272   小希的迷宫   基础并查集★1325&&poj1308  Is It A Tree?   基础并查集★1856   More i…
=============================以下是最小生成树+并查集====================================== [HDU] How Many Tables 基础并查集★ 小希的迷宫 基础并查集★ &&poj1308 Is It A Tree? 基础并查集★ More is better 基础并查集★ Constructing Roads 基础最小生成树★ 畅通工程 基础并查集★ 还是畅通工程 基础最小生成树★ 畅通工程 基础最小生成树★ 畅通…
=============================以下是最小生成树+并查集====================================== [HDU] 1213 How Many Tables 基础并查集★ 1272 小希的迷宫 基础并查集★ 1325&&poj1308 Is It A Tree? 基础并查集★ 1856 More is better 基础并查集★ 1102 Constructing Roads 基础最小生成树★ 1232 畅通工程 基础并查集★ 123…
POJ3740     Easy Finding [精确覆盖基础题] HUST1017    Exact cover [精确覆盖基础] HDOJ3663 Power Stations [精确覆盖] ZOJ3209    Treasure Map [精确覆盖] HDOJ2828 Lamp [精确覆盖+重复覆盖判独] HDOJ3498 whosyourdaddy [重复覆盖] HDOJ3529 Bomberman - Just Search! [重复覆盖] POJ1084    Square Des…
1001 Easy Finding POJ-3740 1002 Power Stations HDOJ-3663 1003 Treasure Map ZOJ-3209 1004 Lamp HDOJ-2828 1005 whosyourdaddy HDOJ-3498 1006 Bomberman - Just Search! HDOJ-3529 1007 Square Destroyer POJ-1084 1008 Matrix HDOJ-2119 1009 Divisibility HDOJ-3…
=============================以下是最小生成树+并查集====================================== [HDU] 1213 How Many Tables 基础并查集★ 1272 小希的迷宫 基础并查集★ 1325&&poj1308 Is It A Tree? 基础并查集★ 1856 More is better 基础并查集★ 1102 Constructing Roads 基础最小生成树★ 1232 畅通工程 基础并查集★ 123…
求有限集传递闭包的 Floyd Warshall 算法(矩阵实现) 其实就三重循环.zzuoj 1199 题 链接 http://acm.zzu.edu.cn:8000/problem.php?id=1199 Problem B: 大小关系 Time Limit: 2 Sec  Memory Limit: 128 MBSubmit: 148  Solved: 31[Submit][Status][Web Board] Description 当我们知道一组大小关系之后,可判断所有关系是否都能成立…
Gson解析JSON字符串时出现了下面的错误: No-args constructor for class X does not exist. Register an InstanceCreator with Gson for this type to fix this problem. 解决的办法是把对应的Class改成静态类.…
C - NP-Hard Problem Crawling in process... Crawling failed Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 688C uDebug Description   Input   Output   Sample Input   Sample Output   Hint…
I joined the NodeJS online Course three weeks ago, but now I'm late about 2 weeks. I pay the codeschool yearly subscribed, but I have lost the track long time. I get more weight than expected. I like more and more my MacBook Pro I maybe go to the UST…
    Programming Contest Problem Types Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems s…
题意: 给你一个数n,表示有n辆火车,编号从1到n,入站,问你有多少种出站的可能.    (题于文末) 知识点: ps:百度百科的卡特兰数讲的不错,注意看其参考的博客. 卡特兰数(Catalan):前几项为 : 1, 1, 2, 5, 14, 42, 132, 429, 1430, 4862, 16796, 58786, 208012, 742900, 2674440, 9694845, 35357670- 令h(0)=1,h(1)=1,catalan数满足递推式:      h(n)= h(0…
2301: [HAOI2011]Problem b Time Limit: 50 Sec  Memory Limit: 256 MBSubmit: 4032  Solved: 1817[Submit][Status][Discuss] Description 对于给出的n个询问,每次求有多少个数对(x,y),满足a≤x≤b,c≤y≤d,且gcd(x,y) = k,gcd(x,y)函数为x和y的最大公约数. Input 第一行一个整数n,接下来n行每行五个整数,分别表示a.b.c.d.k Outp…
You are given two jugs with capacities x and y litres. There is an infinite amount of water supply available. You need to determine whether it is possible to measure exactly z litres using these two jugs. If z liters of water is measurable, you must…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
$s = curl_init(); curl_setopt($s, CURLOPT_POST, true); curl_setopt($s, CURLOPT_POSTFIELDS, $queryStr); curl_setopt($s, CURLOPT_URL, $url); curl_setopt($s, CURLOPT_TIMEOUT, 1000); curl_setopt($s, CURLOPT_RETURNTRANSFER, 1); $body = curl_exec($s); if($…
3489: A simple rmq problem Time Limit: 40 Sec  Memory Limit: 600 MBSubmit: 1594  Solved: 520[Submit][Status][Discuss] Description 因为是OJ上的题,就简单点好了.给出一个长度为n的序列,给出M个询问:在[l,r]之间找到一个在这个区间里只出现过一次的数,并且要求找的这个数尽可能大.如果找不到这样的数,则直接输出0.我会采取一些措施强制在线. Input 第一行为两个整…
http://codeforces.com/problemset/problem/442/B (题目链接) 题意 n个人,每个人有p[i]的概率出一道题.问如何选择其中s个人使得这些人正好只出1道题的概率最大. Solution 很显然的概率dp,过了样例即可AC..话说我为什么要刷B题→_→ 代码 // codeforces442B #include<algorithm> #include<iostream> #include<cstdlib> #include<…
A^B Problem 时间限制:1000 ms  |  内存限制:65535 KB 难度:2   描述 Give you two numbers a and b,how to know the a^b's the last digit number.It looks so easy,but everybody is too lazy to slove this problem,so they remit to you who is wise.   输入 There are mutiple te…
A Simple Tree Problem Time Limit: 3 Seconds      Memory Limit: 65536 KB Given a rooted tree, each node has a boolean (0 or 1) labeled on it. Initially, all the labels are 0. We define this kind of operation: given a subtree, negate all its labels. An…
K - Yet Another Multiple Problem Time Limit:20000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4474 Appoint description:  System Crawler  (2014-10-16) Description There are tons of problems about integer mul…
Recently ,I got confused When I use  git to push one of my project. The problem is below: And I Found the solutions  below maybe helpful to someone who meet the problem: Dealing with non-fast-forward errors Sometimes, Git can't make your change to a…
Cisco的VPN客户端最近报"AnyConnect was not able to establish connection to the specified secure gateway." 导致连不上公司VPN了. 有人说取消共享 Problem: AnyConnect was not able to establish a connection to the specified secure gateway. Please try connecting again. Envir…
题目链接:http://poj.org/problem?id=3311 题意:一个人到一些地方送披萨,要求找到一条路径能够遍历每一个城市后返回出发点,并且路径距离最短.最后输出最短距离即可.注意:每一个地方可重复访问多次. 经典的状压dp,因为每次送外卖不超过10个地方,可以压缩. 由于题中明确说了两个城市间的直接可达路径(即不经过其它城市结点)不一定是最短路径,所以需要借助floyd首先求出任意两个城市间的最短距离. 然后,在此基础上来求出遍历各个城市后回到出发点的最短路径的距离,即求解TSP…