成绩排序（巧妙利用vector）

题目链接：https://www.nowcoder.com/practice/8e400fd9905747e4acc2aeed7240978b?tpId=37&tags=&title=&diffculty=0&judgeStatus=0&rp=1&ru=/ta/huawei&qru=/ta/huawei/question-ranking

#include <iostream>
#include <vector>
#include <string>
using namespace std;

int main()
{
    int n;
    int way;
    string name;
    int grade;
    while(cin >> n >> way)
    {
        vector<string> b[101];  //0-100分的桶共101个
        for(int i = 0; i < n; i++)
        {
            cin >> name >> grade;
            b[grade].push_back(name);
        }
        if(way == 0)
        {
          for(int i = 100 ; i >= 0; i--)
          {
             for(int j = 0; j < b[i].size(); j++)
                 cout << b[i][j] << " " << i << endl;
          }
        }
        else
        {
          for(int i = 0 ; i < 101; i++)
          {
             for(int j = 0; j < b[i].size(); j++)
                 cout << b[i][j] << " " << i << endl;
          }
        }
    }
}