"Huawei OJ" "023-string plus decryption"

"Huawei OJ" "Algorithm Total chapter" "Huawei OJ" "023-string Plus decryption" "Project Download" topic description

1、对输入的字符串进行加解密，并输出。2加密方法为：当内容是英文字母时则用该英文字母的后一个字母替换，同时字母变换大小写,如字母a时则替换为B；字母Z时则替换为a；当内容是数字时则把该数字加1，如0替换1，1替换2，9替换0；其他字符不做变化。3、解密方法为加密的逆过程。接口描述：实现接口，每个接口实现1个基本操作：    void encrypt (char aucPassword[], char aucResult[])：在该函数中实现字符串加密并输出说明：    1、字符串以\0结尾。    2、字符串最长100个字符。    int unEncrypt (char result[], char password[])：在该函数中实现字符串解密并输出说明：    1、字符串以\0结尾。    2、字符串最长100个字符。

Enter a description

输入说明输入一串要加密的密码输入一串加过密的密码

Output description

输出说明输出加密后的字符输出解密后的字符

Input example

abcdefgBCDEFGH

Output example

BCDEFGHabcdefg

Algorithm implementation

ImportJava.util.Scanner;/** * Author: Wang Junshu * DATE:2015/12/23 13:31 * All rights Reserved!!! */ Public  class Main {     Public Static void Main(string[] args) {Scanner Scanner =NewScanner (system.in);//Scanner Scanner = new Scanner (Main.class.getClassLoader (). getResourceAsStream ("Data.txt"));         while(Scanner.hasnext ())            {String input = Scanner.nextline ();            SYSTEM.OUT.PRINTLN (Encrypt (input));            input = Scanner.nextline ();        SYSTEM.OUT.PRINTLN (Unencrypt (input));    } scanner.close (); }/** * String Decryption * * @param S * @return  * *    Private StaticStringUnencrypt(String s) {Char[] Mask = {{' Z ',' A ',' B ',' C ',' d ',' E ',' F ',' G ',' h ',' I ',' J ',' K ',' l ',' m ',' n ',' O ',' P ',' Q ',' R ',' s ',' t ',' u ',' V ',' W ',' x ',' y '},                {' Z ',' A ',' B ',' C ',' D ',' E ',' F ',' G ',' H ',' I ',' J ',' K ',' L ',' M ',' N ',' O ',' P ',' Q ',' R ',' S ',' T ',' U ',' V ',' W ',' X ',' Y '},                {' 9 ',' 0 ',' 1 ',' 2 ',' 3 ',' 4 ',' 5 ',' 6 ',' 7 ',' 8 '}        };returnConvert (S, mask); }/** * String Encryption * * @param S * @return  */    Private StaticStringEncrypt(String s) {Char[] Mask = {{' B ',' C ',' d ',' E ',' F ',' G ',' h ',' I ',' J ',' K ',' l ',' m ',' n ',' O ',' P ',' Q ',' R ',' s ',' t ',' u ',' V ',' W ',' x ',' y ',' Z ',' A '},                {' B ',' C ',' D ',' E ',' F ',' G ',' H ',' I ',' J ',' K ',' L ',' M ',' N ',' O ',' P ',' Q ',' R ',' S ',' T ',' U ',' V ',' W ',' X ',' Y ',' Z ',' A '},                {' 1 ',' 2 ',' 3 ',' 4 ',' 5 ',' 6 ',' 7 ',' 8 ',' 9 ',' 0 '}        };returnConvert (S, mask); }/** * Convert a string based on a mask table * * @param S * @param mask * @return  */    Private StaticStringConvert(String S,Char[] mask) {StringBuilder builder =NewStringBuilder (S.length ()); for(inti =0; I < s.length (); i++) {Charc = S.charat (i);if(c >=' A '&& C <=' Z ') {Builder.append (mask[0][c-' A ']); }Else if(c >=' A '&& C <=' Z ') {Builder.append (mask[1][c-' A ']); }Else{Builder.append (mask[2][c-' 0 ']); }        }returnBuilder.tostring (); }}

"Huawei OJ" "023-string plus decryption"