PAT甲级1083-CFANZ编程社区

1083. List Grades (25)

时间限制

400 ms

内存限制

65536 kB

代码长度限制

16000 B

判题程序

Standard

作者

CHEN, Yue

Given a list of N student records with name, ID and grade. You are supposed to sort the records with respect to the grade in non-increasing order, and output those student records of which the grades are in a given interval.

Input Specification:

Each input file contains one test case. Each case is given in the following format:

N name[1] ID[1] grade[1] name[2] ID[2] grade[2] ... ... name[N] ID[N] grade[N] grade1 grade2

where name[i] and ID[i] are strings of no more than 10 characters with no space, grade[i] is an integer in [0, 100], grade1 and grade2 are the boundaries of the grade's interval. It is guaranteed that all the grades are distinct.

Output Specification:

For each test case you should output the student records of which the grades are in the given interval [grade1, grade2] and are in non-increasing order. Each student record occupies a line with the student's name and ID, separated by one space. If there is no student's grade in that interval, output "NONE" instead.

Sample Input 1:

4 Tom CS000001 59 Joe Math990112 89 Mike CS991301 100 Mary EE990830 95 60 100

Sample Output 1:

Mike CS991301
Mary EE990830
Joe Math990112

Sample Input 2:

2
Jean AA980920 60
Ann CS01 80
90 95

Sample Output 2:

NONE

#include<cstdio>
#include<iostream>
#include<string.h>
#include<string>
#include<vector>
#include<algorithm>
using namespace std;
struct stu
{
  string name, ID;
  int grade;
  bool operator<(stu s)
  {
    return grade > s.grade;
  }
};
int main()
{
  int N;
  cin >> N; vector<stu> v;
  stu s;
  for (int i = 0; i < N; i++)
  {
    cin >> s.name >> s.ID >> s.grade;
    v.push_back(s);
  }
  sort(v.begin(), v.end());
  int grade1, grade2;
  cin >> grade1 >> grade2; 
  bool flag = false;
  for (int i = 0; i < v.size(); i++)
  {
    if (v[i].grade >= grade1&&v[i].grade <= grade2)
    {
      flag = true;
      cout << v[i].name << " " << v[i].ID << endl;
    }
  }
  if (!flag)
    cout << "NONE" << endl;
  return 0;
}