题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4690 纯沙茶模拟题... //STATUS:C++_AC_93MS_228KB #include <functional> #include <algorithm> #include <iostream> //#include <ext/rope> #include <fstream> #include <sstream> #includ…

解题报告:一个模拟题,有两张表格,然后输入一个字符在第一章表格中的位置,让你找出这个字符在第二章表对应的位置. 我欧诺个的是暴力打表,输了两百多个数字,时间复杂度直接降到O(1),这题觉得比较坑的就是题目里面没有给出数据范围,一开始数组开小了,一直WA,搞得我一直以为是表打错了,找了半个小时,结果确定正确,才怀疑是数组开小了.这题数组至少要开到10的七次方. #include<cstdio> #include<iostream> #include<cstring> us…

EBCDIC Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 102400/102400 K (Java/Others)Total Submission(s): 160    Accepted Submission(s): 81 Problem Description A mad scientist found an ancient message from an obsolete IBN System/360 mainframe.…

还有什么好说的呢?打表题= = #include<cstdio> #include<cstring> #include<algorithm> #include<map> using namespace std; #define MP make_pair map < pair <char,char>,pair<char,char> > mm; void init() { mm[MP('); mm[MP('); mm[MP('…

Largest prime factor Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 6990    Accepted Submission(s): 2471 Problem Description Everybody knows any number can be combined by the prime number. Now…

题目链接 http://acm.hdu.edu.cn/search.php?action=listproblem Problem Description Ladies and gentlemen, please sit up straight.Don't tilt your head. I'm serious.For n given strings S1,S2,⋯,Sn, labelled from 1 to n, you should find the largest i (1≤i≤n) su…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5047 解题报告:问一个“M”型可以把一个矩形的平面最多分割成多少块. 输入是有n个“M",现在已经推出这个公式应该是8 * n^2 - 7 * n + 1,但是这个n的范围达到了10^12次方,只要平方一次就超出long long  的范围了,怎么办呢,用大数? 都试过了,很奇怪,会超时,按照估算的话感觉不会,可能是中间结果比较大吧,这个还在思考,但是10^12平方一次乘以八也只达到了10^25次方…

题意: 给一个字符串,表示一颗树,要求你把它整理出来,节点从1开始编号,还要输出树边. 解法: 模拟即可.因为由括号,所以可以递归地求,用map存对应关系,np存ind->name的映射,每进入一层括号,使father = now, 遇到右括号')',则father = fa[father],用vector存每个节点的子节点,然后最后dfs输出即可. 代码: #include <iostream> #include <cstdio> #include <cstring&…

扫雷 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 998    Accepted Submission(s): 289 Problem Description 扫雷游戏是晨晨和小璐特别喜欢的智力游戏,她俩最近沉迷其中无法自拔.该游戏的界面是一个矩阵,矩阵中有些格子中有一个地雷,其余格子中没有地雷. 游戏中,格子可能处于己知和未知的状态…

Car Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 25    Accepted Submission(s): 12 Problem Description Ruins is driving a car to participating in a programming contest. As on a very tight sche…