1083. List Grades (25)
题目如下:
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 100Sample Output 1:
Mike CS991301 Mary EE990830 Joe Math990112Sample Input 2:
2 Jean AA980920 60 Ann CS01 80 90 95Sample Output 2:
NONE
简单的排序题,将输入的数据按照成绩降序排序,然后过滤着输出,没有输出输出NONE。
#include <iostream> #include <vector> #include <algorithm> #include <stdio.h> using namespace std; struct Person{ string name,id; int grade; bool operator < (const Person& p) const{ return grade > p.grade; } Person(string _n, string _id, int _g){ name = _n; id = _id; grade = _g; } }; int main() { int N; string name,id; int grade; vector<Person> persons; cin >> N; for(int i = 0; i < N; i++){ cin >> name >> id >> grade; persons.push_back(Person(name,id,grade)); } int grade1,grade2; cin >> grade1 >> grade2; sort(persons.begin(),persons.end()); bool hasData = false; for(int i = 0; i < N; i++){ if(persons[i].grade < grade1 || persons[i].grade > grade2) continue; printf("%s %s\n",persons[i].name.c_str(),persons[i].id.c_str()); hasData = true; } if(!hasData){ cout << "NONE" << endl; } return 0; }