~cpp 
김철수 59 98 75 91 
마동탁 66 78 77 84 
박민철 52 50 63 72 
신순이 97 55 52 97 
송영이 78 82 63 73 
양민수 72 66 73 52 
장준구 95 62 94 53 
최호민 78 53 74 75 
태석호 66 82 82 94 
한노라 86 65 62 68 

~cpp 
#include <cstdlib>
#include <iostream>
#include <string>
#include <fstream>
#include <map>
#include <vector>
#include <algorithm>
#include <numeric>
using namespace std;

vector<string> tokenize(const string& line);
bool save_map(vector<string>&, map< string, vector<int> >&);
double total(const vector<int>&);
bool print_report(ostream&, 
		const map< string, vector<int> >, 
		double accu(const vector<int>&) = total);

int main(int argc, char *argv[]) {
	string line;
	vector<string> token;
	map< string, vector<int> > grades;
	
	ifstream fin("input.txt");
	while(getline(fin, line)) {
 		token = tokenize(line);
 		save_map(token, grades);
	}
	
	print_report(cout, grades);
	
    system("PAUSE");
    return EXIT_SUCCESS;
}

vector<string> tokenize(const string& line) {
	string word;
	vector<string> ret;
	int beg=0;
	int quantity=0;
	
	for(int i=0; i != line.size(); i++) {
		if (line[i] == ' ') {
			ret.push_back(line.substr(beg, quantity));
			beg=i+1;
			quantity=0;
		} else ++quantity;
	}
	return ret;
}

bool save_map(vector<string>& input, map< string, vector<int> >& grades) {
	for (int i = 1; i != input.size(); i++) {
		grades[input[0]].push_back(atoi(input[i].c_str()));
	}
	return true;
}

double total(const vector<int>& grades) {
	return accumulate(grades.begin(), grades.end(), 0.0);
}

bool print_report(ostream& os, 
	const map< string, vector<int> > record, 
	double accu(const vector<int>&)) {
	
	for(map< string, vector<int> >::const_iterator iter = record.begin();
		iter != record.end();
		iter++) {
		os<<iter->first<<'\t';
		for(vector<int>::const_iterator grades = (iter->second).begin();
			grades != (iter->second).end();
			++grades)
			cout<<*grades<<'\t';
		
		cout<<accu(iter->second)<<'\t';
		cout<<accu(iter->second)/(iter->second.size())<<'\t';
		cout<<endl;
	}
	return true;
}