Description The stable marriage problem consists of matching members of two different sets according to the member’s preferences for the other set’s members. The input for our problem consists of: a set M of n males; a set F of n females; for each ma…

Description The stable marriage problem consists of matching members of two different sets according to the member’s preferences for the other set’s members. The input for our problem consists of: a set M of n males; a set F of n females; for each ma…

题目给出n个男的和n个女的各自喜欢对方的程度,让你输出一个最佳搭配,使得他们全部人的婚姻都是稳定的. 所谓不稳婚姻是说.比方说有两对夫妇M1,F1和M2,F2,M1的老婆是F1,但他更爱F2;而F2的老公虽说是M2.但她更爱M1,这种婚姻就是不稳婚姻,M1和F2理应结合,他们如今各自的婚姻都是错误的. 整个算法基于.男性轮流向女性求婚,每次求婚对象都是没有拒绝过自己且自己最喜欢的女性.而女性对于每一个求婚者.若她是单身,则接受.否则,就看她更喜欢当前求婚者还是她的未婚夫.选择更好的那个. 这样的…

转自http://www.cnblogs.com/drizzlecrj/archive/2008/09/12/1290176.html 稳定婚姻是组合数学里面的一个问题. 问题大概是这样:有一个社团里有n个女生和n个男生,每位女生按照她的偏爱程度将男生排序,同时每位男生也按照自己的偏爱程度将女生排序.然后将这n个女生和n个男生配成完备婚姻. 如果存在两位女生A和B,两位男生a和b,使得A和a结婚,B和b结婚,但是A更偏爱b而不是a,b更偏爱A而不是B,则这个婚姻就是不稳定的,A和b可能背着别人相…

The Stable Marriage Problem   Description The stable marriage problem consists of matching members of two different sets according to the member's preferences for the other set's members. The input for our problem consists of: a set M of n males; a s…

经典稳定婚姻问题 “稳定婚姻问题(The Stable Marriage Problem)”大致说的就是100个GG和100个MM按照自己的喜欢程度给所有异性打分排序.每个帅哥都凭自己好恶给每个MM打分:我最爱a,其次爱b,再次爱c...每个帅哥打的分不同,你最爱的可能是我最讨厌的我最爱的可能是他不甚喜欢的.同样,每个美女也同样给每个帅哥打分.现在需要给他们搭配出100对新郎新娘,并且要保证所得到是稳定婚姻的搭配.那么,什么是不稳定的婚姻呢?所谓不稳婚姻是说, 比如说有两对夫妇(M1.F1)和(…

rt 稳定婚姻匹配问题 The Stable Marriage Problem Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 438    Accepted Submission(s): 222 Problem Description The stable marriage problem consists of matching m…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1914 题目大意:问题大概是这样:有一个社团里有n个女生和n个男生,每位女生按照她的偏爱程度将男生排序,同时每位男生也按照自己的偏爱程度将女生排序.然后将这n个女生和n个男生配成完备婚姻. 如果存在两位女生A和B,两位男生a和b,使得A和a结婚,B和b结婚,但是A更偏爱b而不是a,b更偏爱A而不是B,则这个婚姻就是不稳定的,A和b可能背着别人相伴而走,因为他俩都认为,与当前配偶比起来他们更偏爱各自的新…

稳定婚姻问题,Gale-Shapley算法可解. /* 1914 */ #include <iostream> #include <sstream> #include <string> #include <map> #include <queue> #include <set> #include <stack> #include <vector> #include <deque> #include…

题目传送门 /* 尺取法:先求出不同知识点的总个数tot,然后以获得知识点的个数作为界限, 更新最小值 */ #include <cstdio> #include <cmath> #include <cstring> #include <algorithm> #include <set> #include <map> using namespace std; ; const int INF = 0x3f3f3f3f; int a[MA…

水两发去建模,晚饭吃跟没吃似的,吃完没感觉啊. ---------------------------分割线"水过....."------------------------------- POJ 3100 Root of the Problem http://poj.org/problem?id=3100 大意: 给定B和N,求一个数A使得A^N最接近B 太水了..... #include<cstdio> #include<cmath> int main()…

Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent little time on it. If she wants to pass it, she has to master all ideas included in a very thick text book. The au…

1.链接地址: http://bailian.openjudge.cn/practice/1207/ http://poj.org/problem?id=1207 2.题目: 总时间限制: 1000ms 内存限制: 65536kB 描述 Problems in Computer Science are often classified as belonging to a certain class of problems (e.g., NP, Unsolvable, Recursive). In…

http://poj.org/problem?id=3320 题意:给出一串数字,要求包含所有数字的最短长度. 思路: 哈希一直不是很会用,这道题也是参考了别人的代码,想了很久. #include<iostream> #include<algorithm> #include<string> #include<cstring> using namespace std; ; int n; int len; //开散列法,也就是用链表来存储,所以下面的len是从P…

题目来源:id=2480" style="color:rgb(106,57,6); text-decoration:none">POJ 2480 Longge's problem 题意:求i从1到n的gcd(n, i)的和 思路:首先假设m, n 互质 gcd(i, n*m) = gcd(i, n)*gcd(i, m) 这是一个积性函数积性函数的和还是积性函数 由欧拉函数知识得 phi(p^a) = p^a - p^(a-1) p是素数 a是正整数 得到终于答案f(n)…

id=1681">http://poj.org/problem? id=1681 求最少经过的步数使得输入的矩阵全变为y. 思路:高斯消元求出自由变元.然后枚举自由变元,求出最优值. 注意依据自由变元求其它解及求最优值的方法. #include <stdio.h> #include <algorithm> #include <set> #include <map> #include <vector> #include <ma…

地址 http://poj.org/problem?id=3320 解答 使用双指针 在指针范围内是否达到要求 若不足要求则从右进行拓展  若满足要求则从左缩减区域 代码如下  正确性调整了几次 然后被输入卡TLE卡了很久都没意识到......... #include <iostream> #include <map> #include <set> #include <algorithm> #include <assert.h> #include…

Jessica's Reading Problem Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6001   Accepted: 1800 Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent littl…

1.题意翻译:        输入两个整数a,b (0<=a,b<=10),计算a+b的值并输出.       其中还提到输出不能有多余的内容,即不能加多空格符号等内容,不然会报Wrong Answer       不能使用文件,不然会报"Runtime Error"或者"Wrong Answer"2.思路:      这个poj用来解释如何编写代码以及提交的例子题目,我也是用此题建立我解题报告的模板.     思路很简单,就是加起来.3.总结:    …

Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent little time on it. If she wants to pass it, she has to master all ideas included in a very thick text book. The au…

A Simple Problem with Integers Time Limit:5000MS   Memory Limit:131072K Case Time Limit:2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operation is to add some given number to each…

Subsequence Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 13955   Accepted: 5896 Description A sequence of N positive integers (10 < N < 100 000), each of them less than or equal 10000, and a positive integer S (S < 100 000 000) ar…

Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent little time on it. If she wants to pass it, she has to master all ideas included in a very thick text book. The author of that…

A Simple Problem with Integers Time Limit: 5000MS   Memory Limit: 131072K Total Submissions: 141093   Accepted: 43762 Case Time Limit: 2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type o…

Jessica's Reading Problem Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7467   Accepted: 2369 Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent littl…

Jessica's Reading Problem Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 15224 Accepted: 5241 Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent little t…

Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent little time on it. If she wants to pass it, she has to master all ideas included in a very thick text book. The au…

Root of the Problem Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 12060   Accepted: 6469 Description Given positive integers B and N, find an integer A such that AN is as close as possible to B. (The result A is an approximation to the…

题意: 求f(n)=∑gcd(i, N) 1<=i <=N. 分析: f(n)是积性的数论上有证明(f(n)=sigma{1<=i<=N} gcd(i,N) = sigma{d | n}phi(n / d) * d ,后者是积性函数),能够这么解释:当d是n的因子时,设1至n内有a1,a2,..ak满足gcd(n,ai)==d,那么d这个因子贡献是d*k,接下来证明k=phi(n/d):设gcd(x,n)==d,那么gcd(x/d,n/d)==1,所以满足条件的x/d数目为phi(…

Jessica's Reading Problem Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 12944   Accepted: 4430 Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, yet she has spent litt…