结构体+排序练习题

 

全AC代码

#include<iostream>
using namespace std;
#include<string>
#include<vector>
#include<math.h>
#include <algorithm>
struct student
{
	int number;//学生编号
	int year;
	int mon;
	int day;
	string name = "";
};
bool cmp(student s1, student s2)
{
	if (s1.year < s2.year)return true;
	else if (s1.year > s2.year)return false;
	else
	{
		if (s1.mon < s2.mon)return true;
		else if (s1.mon > s2.mon)return false;
		else
		{
			if (s1.day < s2.day)return true;
			else if (s1.day > s2.day)return false;
			else
			{
				if (s1.number > s2.number)return true;
				else 
				return false;
			}
		}
	}
}
student s[101];
int main()
{
	int n;
	cin >> n;
	for (int i = 0; i < n; i++)
	{
		cin >> s[i].name >> s[i].year >> s[i].mon >> s[i].day;
		s[i].number = i;
	}
	sort(s, s + n, cmp);
	for (int i = 0; i < n; i++)
	{
		cout << s[i].name << endl;
	}
	return 0;
}

  对于大部分这种题目（对学生生日排序，理化生分数排序，员工工资排序）都可以用这种模板来写