显示代码纯文本
#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int key[100];
char k[100],mw[1000],ans[1000];
int main()
{
freopen("vigenere.in","r",stdin);
freopen("vigenere.out","w",stdout);
ios::sync_with_stdio(false);
int i,lk,lmw;
cin>>k>>mw;
lk=strlen(k);
lmw=strlen(mw);
for(i=0;i<lk;i++)
{
if(k[i]>='a')
{
key[i]=k[i]-'a';
}
else key[i]=k[i]-'A';
}
i=0;
while(i<lmw)
{
ans[i]=mw[i]-key[i%lk];
if((ans[i]<'A')||(ans[i]<'a'&&mw[i]>='a'))
{
ans[i]=ans[i]+26;
}
cout<<ans[i];
i++;
}
return 0;
}