回答问题 http://www.zhihu.com/question/26165061

birthday.cpp

//
//  main.cpp
//  Test
//
//  Created by pezy on 9/11/14.
//  Copyright (c) 2014 PEZY. All rights reserved.
//

#include<iostream>
using namespace std;
struct member{
	char name[4];
	int year;
	int month;
	member *next;
};

void Insert(member* &pHead, member* &pNode){
	if(pHead == NULL){
		pHead = pNode;
		return;
	}
	if(pNode->year < pHead->year || (pNode->year == pHead->year && pNode->month < pHead->month)){
		pNode->next = pHead;
		pHead = pNode;
		return;
	}
	member *p = pHead;
	member *q = p->next;
	while(q != NULL){
		if(pNode->year < q->year || (pNode->year == q->year && pNode->month < q->month)) {
				pNode->next = q;
				p->next = pNode;
				return;
		}
		p = q;
		q = q->next;
	}
	p->next = pNode;
}

void Input(member* &head){
	member *pNode = new member;
	pNode->next = NULL;
	cin >> pNode->name >> pNode->year >> pNode->month;
	Insert(head, pNode);
	return;
}

void Output(member* head){
	member *p = head;
	for(int i = 0; i < 7; i++) {
		cout << p->name <<" "<< p->year <<"."<< p->month <<endl;
		p = p->next;
	}
}

int main(){
	member *head = NULL;
	for(int i = 0; i < 7; i++)
		Input(head);
	Output(head);
	system("pause");
	return 0;
}

birthday_cpp11.cpp

#include <iostream>
#include <string>
#include <set>

class Member
{
public:
    Member(){}
    
    friend std::istream& operator>>(std::istream& in, Member& m) { in >> m.name >> m.bYear >> m.bMonth; return in; }
    friend std::ostream& operator<<(std::ostream& out, const Member& m) { out << m.name << " " << m.bYear << "." << m.bMonth; return out; }
    bool operator<(const Member& m) const { return bYear < m.bYear || (bYear == m.bYear && bMonth < m.bMonth);}
private:
    std::string name;
    int bYear;
    int bMonth;    
};

int main()
{
    std::set<Member> s;
    for (int i=0; i!=7; ++i)
    {
        Member m;
        std::cin >> m;
        s.insert(m);
    }
    
    for (auto m : s)
        std::cout << m << std::endl;
    
    return 0;
}