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…

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…

题目链接 https://www.luogu.org/problemnew/show/P1339 最短路 解题思路 dijkstra直接过 注意: 双向边 memset ma数组要在读入之前 AC代码 #include<iostream> #include<cstring> using namespace std; int n,m,ts,te; ]; ]; ][]; int main(){ cin>>n>>m>>ts>>te; mem…

-------------------------------------- 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…