1083 List Grades
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
题意:
给出一个成绩单,按照成绩从大到小输出成绩在[grade1, grade2]之间的学生的信息。
思路:
构造结构体,排序,输出。
Code:
1 #include <bits/stdc++.h> 2 3 using namespace std; 4 5 struct Student { 6 string name; 7 string id; 8 int grade; 9 }; 10 11 bool cmp(Student a, Student b) { return a.grade > b.grade; } 12 13 int main() { 14 int n; 15 cin >> n; 16 vector<Student> v; 17 for (int i = 0; i < n; ++i) { 18 string name, id; 19 int grade; 20 cin >> name >> id >> grade; 21 v.push_back({name, id, grade}); 22 } 23 int grade1, grade2; 24 cin >> grade1 >> grade2; 25 bool found = false; 26 sort(v.begin(), v.end(), cmp); 27 for (int i = 0; i < n; ++i) 28 if (v[i].grade >= grade1 && v[i].grade <= grade2) { 29 found = true; 30 cout << v[i].name << " " << v[i].id << endl; 31 } 32 if (!found) cout << "NONE" << endl; 33 34 return 0; 35 }