PAT甲级--1083 List Grades 分数 25

题目链接：题目详情 - 1083 List Grades (pintia.cn)

题目：

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

代码：

#include
using namespace std;
 
struct Stu {
	string name, ID;
	int grade;
};
int cmp(Stu a, Stu b) {
	return a.grade > b.grade;
}
int main()
{
	int N, st, en, flag = 1;
	cin >> N;
	vector v(N);
	for (int i = 0; i < N; ++i) {
		cin >> v[i].name >> v[i].ID >> v[i].grade;
	}
	cin >> st >> en;
	sort(v.begin(), v.end(), cmp);
	for (int i = 0; i < N; ++i) {
		if (v[i].grade >= st && v[i].grade <= en) {
			cout << v[i].name << " " << v[i].ID << endl;
			flag = 0;
		}
	}
	if (flag)cout << "NONE";
	return 0;
}