哆啦AC梦的专栏

//仅供学习参考之用,无对应题目#include #include #include #include #include #include #include #include #define INF 0x3f3f3f3fusing namespace std;int n,m;int Map[20][20];bool vis[20];i

F - ArbitrageDescriptionArbitrage 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, supp

Frogger Freddy Frog is sitting on a stone in the middle of a lake. Suddenly he notices Fiona Frog who is sitting on another stone. He plans to visit her, but since the water is dirty and

昂贵的聘礼Description年轻的探险家来到了一个印第安部落里。在那里他和酋长的女儿相爱了，于是便向酋长去求亲。酋长要他用10000个金币作为聘礼才答应把女儿嫁给他。探险家拿不出这么多金币，便请求酋长降低要求。酋长说："嗯，如果你能够替我弄到大祭司的皮袄，我可以只要8000金币。如果你能够弄来他的水晶球，那么只要5000金币就行了。"探险家就跑到大祭司那里，向他要求皮袄或水晶球，大

Wormholes While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path that delivers you to its dest

题目链接：点击打开链接题目大意：给定n个点，m条信息，信息包含两种，一种是P，给定u,v,w代表u点在v点的北方w光年处，一种是V，给定u,v代表u在v的北方至少1光年处，判断给定信息的真假。题目解析：建立图，跑最长路，判断是不是有矛盾即正环，SPFA，要判断自环。#include #include #include #include #include #includ