一、成绩排名

#include<algorithm>
#include<iostream>
#include<vector>

using namespace std;

struct Student{
    string name;
    int grade;
};

//自定义比较函数，实现降序。
bool cmp(Student a, Student b){
    return a.grade > b.grade;
}


int main(){
    int n;
    cin >> n;

    vector<Student> students;
    while(n--){
        Student student;
        cin >> student.name >> student.grade;
        students.push_back(student);
    }

    stable_sort(students.begin(), students.end(), cmp);

    for(const auto& student : students){
        cout << student.name << ' ' << student.grade << endl;
    }
    return 0;
}