Arbitrage http://acm.hdu.edu.cn/showproblem.php?pid=1217 Problem Description Arbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency into more than one unit of the same currency. For example, suppose that…

Arbitrage DescriptionArbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency into more than one unit of the same currency. For example, suppose that 1 US Dollar buys 0.5 British pound, 1 British pound buys…

描述Arbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency into more than one unit of the same currency. For example, suppose that 1 US Dollar buys 0.5 British pound, 1 British pound buys 10.0 French francs…

http://poj.org/problem?id=2240 #include <stdio.h> #include <string.h> <<; ][]; ][]; int n,m; void init() { ; i <= n; i ++) { ; j <= n; j ++) { dis[i][j] = ; } } } int Deal(char *s) { ; i <= n; i ++) { if (!strcmp(s,str[i])) retu…

题目:http://acm.hdu.edu.cn/showproblem.php?pid=1217 /************************************************************************/ /* hdu Arbitrage floyd求最短路径 题目大意:floyd算法,求得两点之间最短距离,(u,v) = min( (u,v),(u,w)+(w,v) ); 此题,是求其能够赚钱,即最大生成树,且过程是相乘的,公式:( u, v) =…

题目来源:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=40  Arbitrage  Background The use of computers in the finance industry has been marked with controversy lately as programmed tr…

Arbitrage Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5679    Accepted Submission(s): 2630 Problem Description Arbitrage is the use of discrepancies in currency exchange rates to transform…

UVA 436 - Arbitrage (II) 题目链接 题意:给定一些国家货币的汇率.问是否能通过不断换货币使钱得到增长 思路:floyd,完事后推断一下有没有连到自己能大于1的情况 代码: #include <cstdio> #include <cstring> #include <iostream> #include <string> #include <map> using namespace std; const int N = 35…

uva 104 Arbitrage Description Download as PDF Background The use of computers in the finance industry has been marked with controversy lately as programmed trading – designed to take advantage of extremely small fluctuations in prices – has been outl…

题意: 给出一些货币和货币之间的兑换比率,问是否可以使某种货币经过一些列兑换之后,货币值增加. 举例说就是1美元经过一些兑换之后,超过1美元.可以输出Yes,否则输出No. 分析: 首先我们要把货币之间的关系转化成一张图.转化时,用STL里面的map很方便. 为每种货币分配一个序列号,一个序列号代表了一个图中间的NODE,而node之间的edge用汇率表示. 一开始用Dijkstra算法做,死活AC不了,网友给的理由是: 由于Dijkstra算法不能处理带有负权值的最短路,但此题中,两种货币之间…