Clairewd’s message Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 10376    Accepted Submission(s): 3709 Problem Description Clairewd is a member of FBI. After several years concealing in BUPT,…

Clairewd’s message Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3433    Accepted Submission(s): 1334 Problem Description Clairewd is a member of FBI. After several years concealing in BUPT, s…

Clairewd’s message 题意:先一个转换表S,表示第i个拉丁字母转换为s[i],即a -> s[1];(a为明文,s[i]为密文).之后给你一串长度为n<= 100000的前面为密文后面为明文的串:让你通过密码转换表S在这个串的后面添加字符,使得前面的密文翻译成明文之后与后面相对应,最后输出添加字符后的串(前面密文照常输出): Sample Input 2 abcdefghijklmnopqrstuvwxyz abcdab qwertyuiopasdfghjklzxcvbnm q…

http://acm.hdu.edu.cn/showproblem.php?pid=4300 很难懂题意.... Clairewd’s message Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2839    Accepted Submission(s): 1096 Problem Description Clairewd is…

Clairewd’s message Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9512    Accepted Submission(s): 3458 Problem Description Clairewd is a member of FBI. After several years concealing in BUPT, s…

http://acm.hdu.edu.cn/showproblem.php?pid=4300 Clairewd’s message Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4411    Accepted Submission(s): 1676 Problem Description Clairewd is a member of…

地址:http://acm.hdu.edu.cn/showproblem.php?pid=4300 题目: Clairewd’s message Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6347    Accepted Submission(s): 2381 Problem Description Clairewd is a me…

个人心得:一开始就是知道用哈希,但是无从下手,很明显是对哈希不太了解和思维不太好. 先来看一下这一题涉及到的哈希吧和这题的思路吧,思路就是对所给的密文用原文和翻译后进行hash处理,那么必然存在后面那一段用所给的密文处理等于前面 长度相同的用解密后处理的hash值一样. 比如abcdab,那么必然ab翻译后值等于末尾ab的值,注意长度应从len/2+len%2开始,因为如果长度为奇数个要从后一位开始. typedef unsigned long long ull; const int N = 1…

Problem Description Clairewd is a member of FBI. After several years concealing in BUPT, she intercepted some important messages and she was preparing for sending it to ykwd. They had agreed that each letter of these messages would be transfered to a…

Problem Description Clairewd is a member of FBI. After several years concealing in BUPT, she intercepted some important messages and she was preparing for sending it to ykwd. They had agreed that each letter of these messages would be transfered to a…