这道题\(DFS\)就好了,六种情况,\(ab,ac,ba,bc,ca,cb\),我们直接枚举就可.什么?这样不会结束?用一个\(vis\)数组判断走过没有就可以了.最后排序输出即可. \(code:\) #include <bits/stdc++.h> using namespace std; int a , b , c , tot; int ans[100010] , vis[35][35][35]; void dfs(int x , int y , int z){ if(x == 0)…
P3063 [USACO12DEC]牛奶的路由Milk Routing 题目背景 征求翻译.如果你能提供翻译或者题意简述,请直接发讨论,感谢你的贡献. 题目描述 Farmer John's farm has an outdated network of M pipes (1 <= M <= 500) for pumping milk from the barn to his milk storage tank. He wants to remove and update most of the…