题解 | #成绩排序#

#include <bits/stdc++.h>
using namespace std;

class bigger{
public:
    bool operator()(const pair<string, int>& a, const pair<string, int>& b) const{
        return a.second > b.second;
    }
};

class smaller{
public:
    bool operator()(const pair<string, int>& a, const pair<string, int>& b) const{
        return a.second < b.second;
    }
};

int main() {
    int n;
    cin >> n;
    int flag;
    cin >> flag;
    string name;
    int score;
    vector<pair<string, int>> vec;
    while(n--){
        cin >> name;
        cin >> score;
        vec.emplace_back(name, score);
    }
    if(flag == 0){
        std::stable_sort(vec.begin(), vec.end(), bigger());
    }
    else{
        std::stable_sort(vec.begin(), vec.end(), smaller());
    }
    for(auto &val : vec){
        cout << val.first << " " << val.second << endl;
    }
}
// 64 位输出请用 printf("%lld")