黃品禎

1. #include<iostream>
   
2. #include<cstdlib>
   
3. using namespace std;
   
4. int main()
   
5. {
   
6.     int a;
   
7.     cout<<"座號是幾號"<<endl;
   
8.     cin>>a;
   
9.     if(a%3==0)
   
10.     {
    
11.     cout<<"第"<<a/3<<"組"<<endl;
    
12.     }
    
13.     else
    
14.     cout<<"第"<<(a/3)+1<<"組"<<endl;
    
15.    
    
16.     cout<<"第"<<((a-1)/3)+1<<"組"<<endl;
    
17. }

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