解题思路:
注意事项:
参考代码:
#include <iostream>
using namespace std;
int main(){
int n;
while(cin>>n){
if(n>=90&&n<=100){
cout<<"A"<<endl;
}else if(n>=80&&n<=89){
cout<<"B"<<endl;
}else if(n>=70&&n<=79){
cout<<"C"<<endl;
}else if(n>=60&&n<=69){
cout<<"D"<<endl;
}else if(n>=0&&n<=59){
cout<<"E"<<endl;
}else{
cout<<"Score is error!"<<endl;
}
}
return 0;
}
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