标签:os io ios re return include
#include<iostream>
using namespace std;
int main(){
int p;
while(cin>>p)
if(p>=90)
cout<<"A"<<endl;
else if(p>=80)
cout<<"B"<<endl;
else if(p>=70)
cout<<"C"<<endl;
else if(p>=60)
cout<<"D"<<endl;
else
cout<<"E"<<endl;
return 0;
}
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标签:os io ios re return include
原文地址:http://www.cnblogs.com/gnodidux/p/3819725.html