黃翊豪

1. #include<bits/stdc++.h>
   
2. using namespace std;
   
3. string str;
   
4. int n;
   
5. int main()
   
6. {
   
7.     cin>>str>>n;
   
8.     if(str[n]>='a')
   
9.     {
   
10.         str[n]=str[n]-32;
    
11.     }
    
12.     else
    
13.     {
    
14.         str[n]=str[n]+32;
    
15.     }
    
16.     cout<<"The letter that was selected is: "<<str[n]<<endl;
    
17.     cout<<str;
    
18. }

複製代碼