吳侑諶

1. #include <bits/stdc++.h>
   
2. using namespace std;
   
3. string a;
   
4. int b;
   
5. int main()
   
6. {
   
7.     cin>>a>>b;
   
8.     char c;
   
9.     if(a[b]>='a' && a[b]<='z')
   
10.         a[b]-=32;
    
11.     else
    
12.         a[b]+=32;
    
13.     cout<<"The letter that was selected is: "<<a[b]<<endl;
    
14.     cout<<a;
    
15.     return 0;
    
16. }

複製代碼