> //#include <fstream>
> 
> #include <iostream>
> #include <string>
> #include <vector>
> #include <map>
> #include <iomanip>
> using namespace std;
> 
> //ifstream cin("1761a.in");
> 
> 
> int n;
> 
> int main()
> {
> 	int i,j;
> 	cin>>n;
> 	int time;
> 	string name;
> 	char pro,rslt;
> 	vector<string> sub[9];
> //////////////////该在这里！
> 		float sum[9];
> 		float sumtime[9];
> 		map<char,int> pass;
> 		map<string,int> everyone[9];
> 
> 		for(char ch='A';ch<'J';ch++)
> 		{
> 			pass[ch]=0;
> 		}
> //int h=2147483647;
> //cout<<h<<endl;
> ///////////////////////////////////////////////////////////////////////////////////	
> 	for(i=0;i<n;i++)
> 	{
> 		cin>>time>>name>>pro>>rslt;
> 		int flag=1;
> 		for(j=0;j<sub[pro-65].size();j++)
> 		{
> 			if(name==sub[pro-65][j])
> 			{
> 				flag=0;
> 				break;
> 			}
> 		};
> 		if(flag==0)
> 			continue;
> 		else
> 		{
> 			if(rslt=='A')
> 				sub[pro-65].push_back(name);
> 		}
> 	////////////////////////////////////////////////////////////////////////////////
> 		//cout<<time<<" "<<name<<" "<<pro<<" "<<rslt<<endl;
> 		everyone[pro-65][name]++;
> 		//cout<<pro<<" "<<name<<" "<<alltime[pro-65][name]<<endl;
> 		
> 		if(rslt=='A')
> 		{
> 			pass[pro]++;
> 			sum[pro-65]+=everyone[pro-65][name];
> 			sumtime[pro-65]+=time;
> 			//cout<<pro<<" "<<sumtime[pro-65]<<")"<<endl;
> 		}
> 	}
> 
> 
> //////////////////////////////////////////////////////////////////////////////////////////////////////
> 	for(map<char,int>::iterator it=pass.begin(); it != pass.end(); it++)
> 	{
> 		cout<<it->first<<" "<<it->second;
> 		if(it->second!=0)
> 		{
> ////////////相应的这里也该了一下！
> 			cout<<" "<<setprecision(2)<<fixed<<sum[it->first-65]/it->second<<" "<<sumtime[it->first-65]/it->second<<endl;
> 		}
> 		else
> 			cout<<endl;
> 	}
> 
> 
> 
> }