zoukankan      html  css  js  c++  java
  • [结题报告]458 The Decoder Time limit: 3.000 seconds

     The Decoder 

    Write a complete program that will correctly decode a set of characters into a valid message. Your program should read a given file of a simple coded set of characters and print the exact message that the characters contain. The code key for this simple coding is a one for one character substitution based upon a single arithmetic manipulation of the printable portion of the ASCII character set.

    Input and Output

    For example: with the input file that contains:

    1JKJ'pz'{ol'{yhklthyr'vm'{ol'Jvu{yvs'Kh{h'Jvywvyh{pvu5
    1PIT'pz'h'{yhklthyr'vm'{ol'Pu{lyuh{pvuhs'I|zpulzz'Thjopul'Jvywvyh{pvu5
    1KLJ'pz'{ol'{yhklthyr'vm'{ol'Kpnp{hs'Lx|pwtlu{'Jvywvyh{pvu5

    your program should print the message:

    *CDC is the trademark of the Control Data Corporation.
    *IBM is a trademark of the International Business Machine Corporation.
    *DEC is the trademark of the Digital Equipment Corporation.

    Your program should accept all sets of characters that use the same encoding scheme and should print the actual message of each set of characters.

    Sample Input

    1JKJ'pz'{ol'{yhklthyr'vm'{ol'Jvu{yvs'Kh{h'Jvywvyh{pvu5
    1PIT'pz'h'{yhklthyr'vm'{ol'Pu{lyuh{pvuhs'I|zpulzz'Thjopul'Jvywvyh{pvu5
    1KLJ'pz'{ol'{yhklthyr'vm'{ol'Kpnp{hs'Lx|pwtlu{'Jvywvyh{pvu5

    Sample Output

    *CDC is the trademark of the Control Data Corporation.
    *IBM is a trademark of the International Business Machine Corporation.
    *DEC is the trademark of the Digital Equipment Corporation.


    代码参考:
    本题主要是将字符串的每个部分都进行变化,通过观察可是原码和变化码之间ASCII码相差7.
    #include"stdio.h"
    void fun(char *p)    //自定义函数;  
     {  int i=0;         //定义变量i,控制循环; 
         while(p[i])      //循环解码; 
        {p[i]-=7;            
         i++;}
        p[i]='\0';          //字符串结束; 
         } 
    main()
     {    char s[30000];         //申请数组 ; 
           while(gets(s))           
             { fun(s);               //调用函数; 
               printf("%s\n",s);        //输出; 
             } 
           }    
  • 相关阅读:
    作业29——制作首页的显示列表。
    作业28——发布功能完成。
    作业27——登录之后更新导航
    作业26——完成登录功能,用session记住用户名
    作业25——完成注册功能
    作业24——通过用户模型,对数据库进行增删改查操作。
    作业23——连接mysql数据库,创建用户模型
    作业22——管理信息系统的开发与管理
    作业——21加载静态文件,父模板的继承和扩展
    值类型与引用类型区别
  • 原文地址:https://www.cnblogs.com/sjy123/p/2881428.html
Copyright © 2011-2022 走看看