简单的开始 完美の开始 这里数组什么的用来干什么后面标注的清楚了 #include<iostream> #include<cstdio> #include<cmath> using namespace std; int map[10001][10001];//记录两个点之间的路径个数 int du[10001];//辅助记录奇点 int lu[10001];//记录路径 int n,x,y,js=0;//输入的数据和计数器 int maxn=0; 正题开始QWQ 先说思…
典型的找欧拉路径的题.先贴下USACO上找欧拉路径的法子: Pick a starting node and recurse on that node. At each step: If the node has no neighbors, then append the node to the circuit and return If the node has a neighbor, then make a list of the neighbors and process them (wh…
Riding the Fences Farmer John owns a large number of fences that must be repaired annually. He traverses the fences by riding a horse along each and every one of them (and nowhere else) and fixing the broken parts. Farmer John is as lazy as the next…
Riding the Fences Farmer John owns a large number of fences that must be repairedannually. He traverses the fences by riding a horse along each andevery one of them (and nowhere else) and fixing the broken parts. Farmer John is as lazy as the next fa…
