@[wangguansen0113](/user/1241196)
你又没写代码，我们怎么帮你
by ycy1124 @ 2024-04-27 13:46:04
@[wangguansen0113](/user/1241196)
```cpp
#include<iostream>
#include<cstring>
using namespace std;
int main() {
ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
char ch[10000];
cin.getline(ch,10000);
for(int i=0;i<strlen(ch);++i) {
if(ch[i]>'A'&&ch[i]<='Z'||ch[i]>'a'&&ch[i]<='z') --ch[i];
else if(ch[i]=='a'||ch[i]=='A') ch[i]+=25;
}
cout<<ch;
return 0;
}
```
by xiangzhenze611 @ 2024-04-27 14:25:51