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搜索关键字:spfa    ( 1879个结果
(简单) POJ 2240 Arbitrage,SPFA。
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 sam...
分类:其他好文   时间:2015-03-15 00:43:57    阅读次数:232
(简单) POJ 3259 Wormholes,SPFA判断负环。
Description While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a o...
分类:其他好文   时间:2015-03-15 00:42:32    阅读次数:205
(简单) POJ 1511 Invitation Cards,SPFA。
Description In the age of television, not many people attend theater performances. Antique Comedians of Malidinesia are aware of this fact. They wa...
分类:其他好文   时间:2015-03-15 00:36:34    阅读次数:255
(简单) POJ 1860 Currency Exchange,SPFA判圈。
Description Several currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and p...
分类:其他好文   时间:2015-03-15 00:31:12    阅读次数:145
(中等) HDU 3416 Marriage Match IV,SPFA+SAP。
Description Do not sincere non-interference。 Like that show, now starvae also take part in a show, but it take place between city A and B. Starv...
分类:其他好文   时间:2015-03-14 23:08:52    阅读次数:188
(简单) LightOJ 1074 Extended Traffic,SPFA+负环。
Description Dhaka city is getting crowded and noisy day by day. Certain roads always remain blocked in congestion. In order to convince people avoi...
分类:其他好文   时间:2015-03-14 23:08:49    阅读次数:189
蓝桥杯- 算法训练 最短路
SPFA算法——最短路径 http://www.cnblogs.com/scau20110726/archive/2012/11/18/2776124.html 算法训练 最短路 时间限制:1.0s 内存限制:256.0MB问题描述给定一个n个顶点,m条边的有向图(其中某些边权可能为负,但保证没有....
分类:编程语言   时间:2015-03-14 21:26:08    阅读次数:141
(简单) POJ 3169 Layout,差分约束+SPFA。
Description Like everyone else, cows like to stand close to their friends when queuing for feed. FJ has N (2 #include #include #include #include #...
分类:其他好文   时间:2015-03-14 18:32:20    阅读次数:753
最短路。
最短路的话,就是求一个点到其他点的最短的距离。。。 然后算法的话,有 Dijkstra,Bellman-Ford,SPFA等等,还有Floyd。 然后常用的话就是Dijkstra(优先队列优化)以及SPFA了。。。 可以看下面这篇文章: http://blog.csdn.net/zhon...
分类:其他好文   时间:2015-03-14 18:13:51    阅读次数:109
nyoj 天下第一 (spfa)
要求路径长度大于一,判断出环即可结束。。 1 #include 2 #include 3 #include 4 #include 5 #include 6 #include 7 #include 8 #include 9 #include10 #include11 #include12 #inclu...
分类:其他好文   时间:2015-03-14 12:16:18    阅读次数:166
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