WOJ1141-Encoded Love-letter

After Gardon had got Angel's letter, he found it was encoded...Oh my god, why did she encode a love-letter?? But don't worry, she wrote the

algorithm for encoding after the letter:

Each charactor are changed to a corresponding charactor. If the keyword is "Angel", the rule will be:

ABCDEFGHIJKLMNOPQRSTUVWXYZ

ANGELZYXWVUTSRQPOMKJIHFDCB

You may find that in the bottom line, charactors of the keyword come first. All other charactors will come in a reversed order.

Now given another keyword, work the letter out!

Can you write a program to translate the letter?

输入格式

The letter will begin with the keyword (All uppercase), then lines of text.

输出格式

Decode the letter and print it out. Please note that a upper-case charactor will be decoded to a upper-case charactor, while a lower-case

chara
4000
ctor will be decoded to a lower-case charactor.

样例输入

ANGEL
Fxlr jxaj eac W xlam cqim hqwgl
W xahl kqsl kplgwat zlltwry
Tlj sl atfack jxwru W eqr'j farra zqmylj cqi
W mlslsnlm aj jxl eac
Cqi aml atfack qr sc swre
Lhlrjxqiyx W vikj gar jxwru anqij cqi
Wz jxl eac wr jxl zijiml
Jxwk tqhl fwtt nlgqswry jmil
W'hl rlhlm gxaryl sc swre jxaj W fwtt tqhl cqi zqmlhlm
W eqr'j gaml xqf zqqt wj wk
W fwtt tlj sc emlas gqsl jmil
W fwtt jltt cqi kqsljxwry W farra tlj cqi urqf, W tlj cqi urqf

W tqhl cqi, tqhwry cqi, ak jxl sqikl tqhlk jxl mwgl
Lhlr lhlmc eac xak kjqms, W fwtt atfack nc cqim kwel
W swkk cqi, swkkwry cqi
W eqr'j gaml xqf xame wj wk
W vikj farj cqi jq nl xappc
Lhlmcjxwry, W eq wj zqm cqi

样例输出

When that day I hear your voice
I have some special feeling
Let me always think I don't wanna forget you
I remember at the day
You are always on my mind
Eventhough I just can think about you
If the day in the future
This love will becoming true
I've never change my mind that I will love you forever
I don't care how fool it is
I will let my dream come true
I will tell you something I wanna let you know, I let you know

I love you, loving you, as the mouse loves the rice
Even every day has storm, I will always by your side
I miss you, missing you
I don't care how hard it is
I just want you to be happy
Everything, I do it for you

按照置换的方法套回去就可以

#include<stdio.h>
#include<string.h>
char key[27];
int decode[26];
int letter[26];
char c;
int main(){
scanf("%s",&key);
int i,l=strlen(key),t;
memset(letter,0,sizeof(letter));
for(i=0;i<l;i++){
t=key[i]-'A';
letter[t]=1;
decode[i]=t;
}
t=26;
for(;i<26;i++){
while(t--){
if(letter[t]==0)
break;
}
decode[i]=t;
}
for(i=0;i<26;i++){
letter[decode[i]]=i;
}
/*for(i=0;i<26;i++){
printf("%c",'A'+decode[i]);
}*/
getchar();
while(scanf("%c",&c)!=EOF){
if(c>='a'&&c<='z')
printf("%c",'a'+letter[c-'a']);
else if(c>='A'&&c<='Z')
printf("%c",'A'+letter[c-'A']);
else
printf("%c",c);
}
return 0;
}