题解 | #成绩排序#

#include <iostream>
#include <map>
using namespace std;
//这里使用mutilmap里的自动排序，将成绩和姓名进行调换，将成绩作为key进行排序
//如果==0就用降序 ==1用升序
int main() {
    int n, comp;
    while (cin >> n) { 
        cin >> comp;
        if (comp == 0) {
            multimap<int, string, greater<int>> m1;
            for (int i = 0; i < n; i++) {
                string s;
                int k;
                cin >> s;
                cin >> k;
                m1.emplace(k, s);
            }
            for(auto e :m1)
            {
                cout<<e.second<<" "<<e.first<<endl;
            }
        } else if (comp == 1) {
            multimap<int, string> m1;
            for (int i = 0; i < n; i++) {
                string s;
                int k;
                cin >> s;
                cin >> k;
                m1.emplace(k, s);
            }
            for(auto e :m1)
            {
                cout<<e.second<<" "<<e.first<<endl;
            }
        }
    }
}
// 64 位输出请用 printf("%lld")