P1339 [USACO09OCT]热浪Heat Wave 题目描述 The good folks in Texas are having a heatwave this summer. Their Texas Longhorn cows make for good eating but are not so adept at creating creamy delicious dairy products. Farmer John is leading the charge to delive…

-------------------------------------- 农夫约翰再显神威,双向热浪,双倍数组 (双倍大小,否则RE) ---------------------------------- 题目链接:MIKU ----------------------------------- 怎么说呢,裸的最短路,但是好像floyd不优化不行 SPFA好写是好写,但是容易被卡 有空还是学Dijkstra比较好 ----------------------------------- SPF…

题目描述 The good folks in Texas are having a heatwave this summer. Their Texas Longhorn cows make for good eating but are not so adept at creating creamy delicious dairy products. Farmer John is leading the charge to deliver plenty of ice cold nutritiou…

题目描述 The good folks in Texas are having a heatwave this summer. Their Texas Longhorn cows make for good eating but are not so adept at creating creamy delicious dairy products. Farmer John is leading the charge to deliver plenty of ice cold nutritiou…

我太lj了,所以趁着夜色刷了道最短路的水题....然后,,我炸了. 题目描述: The good folks in Texas are having a heatwave this summer. Their Texas Longhorn cows make for good eating but are not so adept at creating creamy delicious dairy products. Farmer John is leading the charge to d…

题目描述 The good folks in Texas are having a heatwave this summer. Their Texas Longhorn cows make for good eating but are not so adept at creating creamy delicious dairy products. Farmer John is leading the charge to deliver plenty of ice cold nutritiou…

题目描述 The good folks in Texas are having a heatwave this summer. Their Texas Longhorn cows make for good eating but are not so adept at creating creamy delicious dairy products. Farmer John is leading the charge to deliver plenty of ice cold nutritiou…

题目传送门 这道题实际非常简单好奇是怎么变黄的... 其实也就是一个SPFA,本人非常懒,不想打邻接表,直接用矩阵就好啦... #include<bits/stdc++.h> using namespace std; ][],m,fr,to; void add(int x,int y,int z){a[x][y]=z;} ]; ]; queue<int> q; void SPFA(int from){ vis[; q.push(; while(!q.empty()){ ; q.po…

题目链接:https://www.luogu.org/problemnew/show/P1339 解题思路: 一道简单的最短路水题,dijkstra解法模板思路:https://www.cnblogs.com/lipeiyi520/p/10340361.html AC代码: #include<bits/stdc++.h> using namespace std; const int ff=0x3f3f3f; ][],a,b,c; ]; ]; void dij(int s){ memset(vi…

思路:裸SPFA过一遍(建议使用邻接链表存储),无向图,无向图,无向图,重要的事情要说三遍!!!蜜汁RE是什么鬼????第九个点数组开到20K,第十个点数组开到30K才AC.或许我代码写的有bug?(逃 CODE: #include<iostream> #include<queue> using namespace std; queue<int>q; struct Edge{ int pre,to,w; }edge[]; ]; ]; ]; int T, C, Ts, T…