题意:每个城市举办庆祝有一定的花费,A在路径上会选择庆祝花费最大的城市 让你求,A回家所花的路费和庆祝费最少,也就是说并不是最短路径就是结果, 还有可能就是路费比最短路径的多,但是庆祝费就比它的少,总的加起来可能更小. 思路:枚举每个城市作为庆祝的点,设为x.以x为源点,用dijks求单源路径,路径上如果有大于x庆祝费的点,则不考虑进去. 求完所有点到x的单源路径后,用两重j.k的for循环,同步更新从j到k所需要的最小花费 #include <iostream> #include <a…

uva10246:http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=1187 题意: 地图上有n个城市和某些城市间直达的道路,每条道路都有过路费,在每个城市举办宴会的花费也是已知的,现在给出A和B的位置,瘦陀陀在城市A,胖陀 陀在另一个未知的城市,两人要到城市X举办宴会,要求举办宴会的城市必须是瘦陀陀回家路线中举…

Description Asterix,Obelix和他们的临时伙伴Suffix.Prefix已经最终找到了和谐寺.然而和谐寺大门紧闭,就连Obelix的运气也没好到能打开它. 不久他们发现了一个字符串S(|S|<=1000000),刻在和谐寺大门下面的岩石上.Asterix猜想那一定是打开寺庙大门的密码,于是就大声将字符串朗读了出来,然而并没有什么事发生.于是Asterix又猜想密码一定是字符串S的子串T. Prefix认为T是S的前缀,Suffix认为T是S的后缀,Obelix却认为T应该是…

The Great Divide Input: standard input Output: standard output Time Limit: 8 seconds Memory Limit: 32 MB Somewhere in Gaul, there is a little village very like the village where Asterix and Obelix live. Not very long ago they had only one chief Altru…

B. Password time limit per test  2 seconds memory limit per test  256 megabytes   Asterix, Obelix and their temporary buddies Suffix and Prefix has finally found the Harmony temple. However, its doors were firmly locked and even Obelix had no luck op…

Asterix, Obelix and their temporary buddies Suffix and Prefix has finally found the Harmony temple. However, its doors were firmly locked and even Obelix had no luck opening them. A little later they found a string s, carved on a rock below the templ…

题目描述: Password time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Asterix, Obelix and their temporary buddies Suffix and Prefix has finally found the Harmony temple. However, its doors were f…

下文的第一个逐行读取文件例子用三种方式实现;普通方法,迭代器和生成器,比较了他们的优缺点,很好,可以引用到自己的代码中 ,支持的php版本(PHP 5 >= 5.5.0) 后面的yield讲解,得逐行翻译理解 Request for Comments: Generators Date: 2012-06-05 Author: Nikita Popov nikic@php.net Status: Implemented Introduction Generators provide an easy,…

Progressive Neural Network  Google DeepMind 摘要:学习去解决任务的复杂序列 --- 结合 transfer (迁移),并且避免 catastrophic forgetting (灾难性遗忘) --- 对于达到 human-level intelligence 仍然是一个关键性的难题.本文提出的 progressive networks approach 朝这个方向迈了一大步:他们对 forgetting 免疫,并且可以结合 prior knowledg…

As you may know from the comic \Asterix and the Chieftain's Shield", Gergovia consists of one street,and every inhabitant of the city is a wine salesman. You wonder how this economy works? Simpleenough: everyone buys wine from other inhabitants of th…