考研成绩排序案例C++

 使用list容器对学生成绩信息进行存储，然后分别对分数进行排序，再输出。

排序优先级规则：

1. 总分一样，数学高则排名高
2. 数学一样，英语高则排名高
3. 英语一样，专业课成绩高则高，以此类推

#include <iostream>
#include <vector>
#include <string>
#include <list>
#include <algorithm>

using namespace std;

//学生类
class Person
{
public:
	string m_Name;	 //姓名
	string m_school; //拟报考院校
	int m_Score;	 //总成绩
	int m_politics;	 //政治成绩
	int m_english;	 //英语成绩
	int m_math;		 //数学成绩
	int m_major;	 //专业课成绩
	int m_num;		 //准考证号

	Person(int num, string sname, string name, int politics, int english, int math, int major) //构造函数
	{
		this->m_num = num;
		this->m_school = sname;
		this->m_Name = name;
		this->m_Score = politics + english + math + major; //总分等于各科成绩之和
		this->m_politics = politics;
		this->m_english = english;
		this->m_math = math;
		this->m_major = major;
	}
};

//定义一个比较函数，总分一样数学高，排名高，数学一样，
//英语高则排名高，英语一样，专业课成绩高则高，以此类推
bool compare(Person &h1, Person &h2)
{
	if (h1.m_Score != h2.m_Score)
	{
		return h1.m_Score > h2.m_Score;
	}
	else if (h1.m_math != h2.m_math)
	{
		return h1.m_math > h2.m_math;
	}
	else if (h1.m_english != h2.m_english)
	{
		return h1.m_english > h2.m_english;
	}
	else
	{
		return h1.m_major > h2.m_major;
	}
}

void test01()
{
	//创建一个list链表
	list<Person> l;

	//创建12个对象，并赋值
	Person p1(101, "北京大学", "小师", 65, 64, 125, 130);
	Person p2(102, "天津大学", "小白", 65, 68, 120, 135);
	Person p3(103, "清华大学", "小赵", 80, 78, 108, 101);
	Person p4(104, "浙江大学", "小王", 55, 54, 95, 135);
	Person p5(105, "武汉大学", "小黄", 80, 70, 108, 109);
	Person p6(106, "上海交通大学", "小罗", 67, 60, 115, 110);
	Person p7(107, "北京航空航天大学", "小刘", 59, 61, 105, 120);
	Person p8(108, "华中科技大学", "小张", 55, 63, 110, 115);
	Person p9(109, "西安交通大学", "小唐", 62, 80, 128, 141);
	Person p10(110, "电子科技大学", "小郭", 65, 64, 115, 135);
	Person p11(111, "北京理工大学", "小李", 60, 78, 80, 139);
	Person p12(112, "复旦大学", "小鹿", 60, 70, 85, 130);

	//将这十二个人的信息尾插进链表
	l.push_back(p1);
	l.push_back(p2);
	l.push_back(p3);
	l.push_back(p4);
	l.push_back(p5);
	l.push_back(p6);
	l.push_back(p7);
	l.push_back(p8);
	l.push_back(p9);
	l.push_back(p10);
	l.push_back(p11);
	l.push_back(p12);

	//进行排序前的输出
	for (list<Person>::iterator it = l.begin(); it != l.end(); it++)
	{
		cout << "准考证号：" << it->m_num << " 姓名：" << it->m_Name << " 总分： " << it->m_Score << " 政治： " << it->m_politics << " 英语："
			 << it->m_english << " 数学：" << it->m_math << " 专业课：" << it->m_major << " 拟报考院校：" << it->m_school << endl;
	}

	//排序
	cout << "---------------------------------------------------------------------------------------------------" << endl;
	cout << "|                                             排序后                                               |" << endl;
	cout << "---------------------------------------------------------------------------------------------------" << endl;

	l.sort(compare); //排序操作，sort函数需要调用
	for (list<Person>::iterator it = l.begin(); it != l.end(); it++)
	{
		cout << "准考证号：" << it->m_num << " 姓名：" << it->m_Name << " 总分： " << it->m_Score << " 政治： " << it->m_politics << " 英语："
			 << it->m_english << " 数学：" << it->m_math << " 专业课：" << it->m_major << " 拟报考院校：" << it->m_school << endl;
	}
}

int main()
{
	test01();

	system("pause");
	return 0;
}