本题解依旧发布于洛谷,如果您能点个赞的话--(逃 前言 题目链接 正解:动态规划 思路不是很好想,想出来了应该就没有多大问题了,但是需要处理的细节较多,再加上水水的样例,难度应该是偏难的.个人感觉应该是绿到蓝的亚子. 先说说思路的来源(错误解法,不想看请跳过) 中午打开题目,第一反应:这不是一个暴搜部分分到手吗? 打了个无脑暴搜,深搜+回溯,分别向往左走和往右走的方向进行搜索,只是需要注意变量初始化和判断是否可以走. 时间复杂度 \(Θ(2^{n})\),校内 OJ \(15pts\). #in…

C. Fragile Bridges 题目连接: http://codeforces.com/contest/201/problem/C Description You are playing a video game and you have just reached the bonus level, where the only possible goal is to score as many points as possible. Being a perfectionist, you'v…

A. LLPS 长度最大10,暴力枚举即可. B. Brand New Easy Problem 枚举\(n\)的全排列,按题意求最小的\(x\),即逆序对个数. C. Clear Symmetry 当\(n\)为偶数时,只有长为\(w=\frac{n}{2}-1\)的正方形内可以填1,并且1不能相邻,根据对称性,1的个数必然是4的倍数,且最大为\[max(\frac{w^2}{2}, w^2-\frac{w^2}{2})\] 当\(n\)为奇数,状压DP,比较麻烦,没想到比较好的实现方式. D…

由于公司项目涉及到相关技术,对于平常写WEB的技术人员来说对这人来说比较默生:为了让下面的技术人员更好地对这个协议的实施,所以单独针对这个协议进行了分析和设计,以更于后期更好指导相关开发工作.由于自己对网络这一块比较熟悉,之前也有过想法实现TJ/T808相关协议,只是一直没这个动力去做:恰好碰到这次机会顺更也动动手写下代码. TJ/T808协议了解 其实看了一下这个协议,在设计上感觉有些不太合理,不过已经是国标的东西也没有什么可异议的:总体来说这个协议还是比较简单,以下是这个协议的基础部分: 为…

Caocao's Bridges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1231    Accepted Submission(s): 478 Problem Description Caocao was defeated by Zhuge Liang and Zhou Yu in the battle of Chibi. B…

Description Given a map of islands and bridges that connect these islands, a Hamilton path, as we all know, is a path along the bridges such that it visits each island exactly once. On our map, there is also a positive integer value associated with e…

Caocao's Bridges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3992    Accepted Submission(s): 1250 Problem Description Caocao was defeated by Zhuge Liang and Zhou Yu in the battle of Chibi.…

Caocao's Bridges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Problem Description Caocao was defeated by Zhuge Liang and Zhou Yu in the battle of Chibi. But he wouldn't give up. Caocao's army still was not good…

Burning Bridges Time Limit: 5 Seconds Memory Limit: 32768 KB Ferry Kingdom is a nice little country located on N islands that are connected by M bridges. All bridges are very beautiful and are loved by everyone in the kingdom. Of course, the system o…

Burning Bridges Time Limit: 5 Seconds      Memory Limit: 32768 KB Ferry Kingdom is a nice little country located on N islands that are connected by M bridges. All bridges are very beautiful and are loved by everyone in the kingdom. Of course, the sys…