Description: 一个 m * n 的棋盘,有的格子存在障碍,求经过所有非障碍格子的哈密顿回路个数 Hint: \(n,m<=12\) Solution: 插头dp模板题,注意要讨论多种情况,详见代码 #include<bits/stdc++.h> using namespace std; typedef long long ll; const int mxn=15,c[4]={0,-1,1,0}; struct data { int key; ll val; }; int n,…
1814: Ural 1519 Formula 1 Time Limit: 1 Sec Memory Limit: 64 MBSubmit: 924 Solved: 351[Submit][Status][Discuss] Description 一个 m * n 的棋盘,有的格子存在障碍,求经过所有非障碍格子的哈密顿回路个数 Input The first line contains the integer numbers N and M (2 ≤ N, M ≤ 12). Each of…
Description Regardless of the fact, that Vologda could not get rights to hold the Winter Olympic games of 20**, it is well-known, that the city will conduct one of the Formula 1 events. Surely, for such an important thing a new race circuit should be…
http://acm.timus.ru/problem.aspx?space=1&num=1519 题目描述 一个 m * n 的棋盘,有的格子存在障碍,求经过所有非障碍格子的哈密顿回路个数. 输入 The first line contains the integer numbers N and M (2 ≤ N, M ≤ 12). Each of the next N lines contains M characters, which are the corresponding cells…