#include <iostream>
#include <string>
#include <vector>
#include <sstream>
using namespace std;
typedef struct PersonInfo
{
	string name;
	vector<string> phones;
}p;
int main() {
	string line, word;
	vector<p> people;
	while (getline(cin, line))
	{
		p info;
		istringstream record(line);
		record >> info.name;
		while (record >> word)
			info.phones.push_back(word);
		people.push_back(info);
	}

	for (auto i : people)
	{
		cout << i.name << endl;
		for (auto j : i.phones)
			cout << j << "   ";
		cout << endl;
	}
	return 0;
}

std::istream& func(std::istream &is)
{
    std::string buf;
    while (is >> buf)
        std::cout << buf << std::endl;
    is.clear();
    return is;
}

#include <iostream>
using std::istream;
istream& func(istream &is)
{
    std::string buf;
    while (is >> buf)
        std::cout << buf << std::endl;
    is.clear();
    return is;
}
int main()
{
    istream& is = func(std::cin);
    std::cout << is.rdstate() << std::endl;
    return 0;
}

#include <iostream>
#include <string>
using namespace std;
istream& f1(istream& is)
{
	int s;
	while (is >> s)
	{
		cout << s << endl;
	}
	return is;
}
istream& f2(istream& is)
{
	int s;
	while (is >> s)
	{
		cout << s << endl;
	}
	is.clear();
	return is;
}
int main()
{
	istream& is = f1(cin);
	cout << is.rdstate() << endl;
	istream& is2 = f2(cin);
	cout << is2.rdstate() << endl;
	return 0;
}

while (cin >> i) /*  ...    */

#include <iostream>
#include <string>
#include <vector>
#include <fstream>
using namespace std;
void ReadFileToVec(const string& filename, vector<string>& vec)
{
	ifstream ifs(filename);
	if (ifs)
	{
		string buf;
		while (getline(ifs, buf))
			vec.push_back(buf);
	}
}

void ReadFileToVec(const string& fileName, vector<string>& vec)
{
    ifstream ifs(fileName);
    if (ifs)
    {
        string buf;
        while (ifs >> buf)
            vec.push_back(buf);
    }
}

#include <iostream>
#include <string>
#include <sstream>
#include <fstream>
#include <vector>
using namespace std;
int main()
{
	//將來(lái)自一個(gè)文件的行保存到vector中
	ifstream ifs("hello.txt");
	if (!ifs)
	{
		cerr << "no data ?" << endl;
		return -1;
	}
	vector<string> vecline;
	string line;
	while(getline(ifs, line))
		vecline.push_back(line);
	ifs.close();
	//從vector讀取元素，每次只讀一個(gè)單詞
	for (auto &s : vecline)
	{
		istringstream iss(s);
		string word;
		while (iss >> word)
			cout << word << endl;
	}
	return 0;
}

#include <iostream>
#include <sstream>
#include <string>
#include <vector>
using std::vector; using std::string; using std::cin; using std::istringstream;
struct PersonInfo {
    string name;
    vector<string> phones;
};
int main()
{
    string line, word;
    vector<PersonInfo> people;
    istringstream record;
    while (getline(cin, line))
    {
        PersonInfo info;
        record.clear();
        record.str(line);
        record >> info.name;
        while (record >> word)
            info.phones.push_back(word);
        people.push_back(info);
    }
    for (auto &p : people)
    {
        std::cout << p.name << " ";
        for (auto &s : p.phones)
            std::cout << s << " ";
        std::cout << std::endl;
    }
    return 0;
}

#include <iostream>
#include <string>
#include <sstream>
#include <fstream>
#include <vector>
using namespace std;
struct PersonInfo {
	string name;
	vector<string> phones;
};
bool valid(const string& str)
{
	return isdigit(str[0]);
}
string format(const string& str)
{
	return str.substr(0, 3) + "-" + str.substr(3, 3) + "-" + str.substr(6);
}
int main()
{
	//從文件中讀取信息存入vector容器
	ifstream ifs("phone.txt");
	if (!ifs)
	{
		cerr << "no phone numbers ? " << endl;
		return -1;
	}
	vector<PersonInfo> people;
	string line, word;
	istringstream record;
	while (getline(ifs, line))
	{
		PersonInfo info;
		record.clear();
		record.str(line);
		record >> info.name;
		while (record >> word)
		{
			info.phones.push_back(word);
		}
		people.push_back(info);
	}
	//逐個(gè)驗(yàn)證電話號(hào)碼 并 改變其格式
	for (const auto& entry : people)   //對(duì)people中的每一項(xiàng)
	{
		//每個(gè)循環(huán)創(chuàng)建的對(duì)象
		ostringstream formatted, badnums;
		//對(duì)每個(gè)數(shù)
		for (const auto& nums : entry.phones)
		{
			if (!valid(nums))
			{
				badnums << " " << nums;
				//將數(shù)的字符串形式存入badnums
			}
			else
			{
				//將格式化的字符串寫(xiě)入formatted
				formatted << " " << format(nums);
			}
		}
		//沒(méi)有錯(cuò)誤的數(shù)
		if (badnums.str().empty())
		{
			cout << entry.name << " "
				<< formatted.str() << endl;
		}
		else
		{
			//打印名字和錯(cuò)誤的數(shù)
			cerr << "input error: " << entry.name
				<< " invalid number(s)" << badnums.str() << endl;
		}
	}
	return 0;
}