今天ACM练习赛，神奇情书解密器，真幽默了……

Jan 19

Posted by bbscool at 15:20 | 原创文稿 | 评论(0) | 阅读(482) | 转自本站原创

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我不禁噗嗤了……
原题：http://acm.hdu.edu.cn/cont...
（原来杭电那帮宅，喜欢在情人节玩ACM，还YY情书，脑抽了……）

Java 版（先建立密码表，然后逐个查询），有爱的可以去骗小娘……

package cn.com.test;

import java.io.BufferedInputStream;
import java.util.Scanner;

public class Main {
  public static Scanner cin;
  public static void main(String[] args){  
      cin = new Scanner(new BufferedInputStream(System.in));
      char []t = new char[256];
      char []td = new char[256];
      String passwd = cin.nextLine();
      char[] passwdch = passwd.toCharArray();
      for (int i=65;i-65<passwd.length();i++)
        t[i]=passwdch[i-65];
      for (int j=97;j-97<passwd.length();j++)
        t[j]=(char) (passwdch[j-97]+32);
      int ii = 65+passwd.length();
      for (int i=65+passwd.length();i<91+passwd.length();i++){
        char tt =(char) ('Z'-(i-65-passwd.length()));
        String tts = String.valueOf(tt);
        if (!passwd.contains(tts)){
          t[ii] = tt;
          ii++;
        }
      }
      int ji = 97+passwd.length();
      for (int i=97+passwd.length();i<123+passwd.length();i++){
        char tt =(char) ('z'-(i-97-passwd.length()));
        String tts = String.valueOf(tt).toUpperCase();
        if (!passwd.contains(tts)){
          t[ji] = tt;
          ji++;
        }
      }
      for (int i=65;i<124;i++){
        char t1=t[i];
        td[(int)(t1)]=(char)i;
      }
      while(cin.hasNextLine()){
        String love = cin.nextLine();
        char[] lovechar = love.toCharArray();
        char []decoded = new char[love.length()];
        for (int i=0;i<love.length();i++){
          int loveoffset = lovechar[i];
          if ((loveoffset>64 && loveoffset<92) || (loveoffset>96 && loveoffset<124))          decoded[i] = td[loveoffset];
          else decoded[i] = lovechar[i];
        }
        String out = String.valueOf(decoded);
        System.out.println(out);
      }
  }
}