降序排序算法

代码展示

#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
using namespace std;
struct Student {
	string name;
	int score;
	Student(){}
	Student(string n,int s):name(n),score(s){}
};
bool compare_score(Student x,Student y) {
	return x.score > y.score;
}
int main() {
	Student stu[3];
	string n;
	int s;
	for (int i=0;i<3;i++)
	{
		cin >> n >> s;
		stu[i] = Student(n, s);
	}
	sort(stu,stu+3, compare_score);
	for (int i = 0; i < 3; i++) {
		cout << stu[i].name << " " << stu[i].score << endl;;
	}
	return 0;
}

代码结构

1. 结构体定义：

   struct Student {
       string name;
       int score;
       Student(){}
       Student(string n,int s):name(n),score(s){}
   };

   Student 结构体包含两个成员变量：name（学生姓名）和 score（学生成绩）。