http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=4842 要注意题目中两点: 1.在踏入妖怪控制的区域那一刹那,先减行动力,然后才能杀妖怪 2.在妖怪控制区域行动力也会恢复 3.妖怪也许不在自己的控制区域 #include <cstdio> #include <cstring> #include <algorithm> #include <queue> using namespace st…

写这道题题解的目的就是纪念一下半个小时才读懂题...英文一多读一读就溜号... 读题时还时要静下心来... 题目链接: http://codeforces.com/contest/659/problem/B 题意: 给定地区及来自相应地区的人的分数,每个地区选两个分数最高的人 参加区域赛,如果选出的两个人唯一,则输出名字,否则如果还需要进行下一次比赛,输出"?". 分析: 不唯一的情况就是第二个人和第三个人的分数相同嘛...排个序找一下就好了. 代码: #include <bit…

https://leetcode.com/problems/add-two-numbers/ You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked…

Maze Time Limit: 2 Seconds      Memory Limit: 65536 KB Celica is a brave person and believer of a God in the bright side. He always fights against the monsters that endanger humans. One day, he is asked to go through a maze to do a important task. Th…

Borg Maze Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 8905   Accepted: 2969 Description The Borg is an immensely powerful race of enhanced humanoids from the delta quadrant of the galaxy. The Borg collective is the term used to descr…

Wumpus Time Limit: 2 Seconds      Memory Limit: 65536 KB One day Leon finds a very classic game called Wumpus.The game is as follow. Once an agent fell into a cave. The legend said that in this cave lived a kind of monster called Wumpus, and there we…

题目 http://poj.org/problem?id=3126 题意 多组数据,每组数据有一个起点四位数s, 要变为终点四位数e, 此处s和e都是大于1000的质数,现在要找一个最短的路径把s变为e,每步可以做如下操作,把当前的s中的四位数上的某一位改变,比如1009可以变为2009,1008,1309,1049,然后检验结果是否为大于1000的质数,如果是,那就可以把s变为这个数. 思路 质数明显需要先处理出来,然后采用bfs获取结果即可. 感想 下次需要先计算空间复杂度, 1e8的空间复…

http://acm.timus.ru/problem.aspx?space=1&num=1830 这道题需要理解题目操作的意思, 要更改第i位的状态,第i-1位必须激活为1,0-i-2位必须为0,如果0-i-1位开始时全为0,那么从0位开始进行操作 一.首先考虑对于0-i-1位都是0,需要更改i位的情况,需要 1.更改i-1位,2.按一下打开下一页 对于更改i-1位,需要1.更改i-2位,2.按一下打开下一页,3.更改i-2位 可以得到一个式子,设f[i]为第0-i-1位均为0时,使得状态成为…

Sum of Consecutive Prime Numbers Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 19697   Accepted: 10800 Description Some positive integers can be represented by a sum of one or more consecutive prime numbers. How many such representatio…

Description On the evening of 3 August 1492, Christopher Columbus departed from Palos de la Frontera with a few ships, starting a serious of voyages of finding a new route to India. As you know, just in those voyages, Columbus discovered the America…