1083. List Grades (25)

Posted 2020-10-16 gaoren

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<iostream>
#include<cstring>
#include<stdio.h>
#include<cmath>
#include<algorithm>
using namespace std;
struct Stu{
    char name[11];
    char id[11];
    int grade;
}stu[1000];
bool cmp(Stu s1, Stu s2){
    return s1.grade>s2.grade;
}
int main(){
    int n;
    scanf("%d",&n);
    for(int i=0;i<n;i++){
        scanf("%s%s%d",stu[i].name,stu[i].id,&stu[i].grade);
    }
    //cout<<" fsdho"<<endl;
    sort(stu,stu+n,cmp);
    //cout<<" fsdho"<<endl;
    int grade1,grade2;
    scanf("%d%d",&grade1,&grade2);
    if(grade1>grade2){
        int tmp = grade2;
        grade2=grade1;
        grade1 = tmp;
    }
    int index = 0;
    int i;
    for(i=0;i<n;i++){
        if(stu[i].grade>=grade1 && stu[i].grade<=grade2){
            cout<<stu[i].name<<" "<<stu[i].id<<endl;
            index = 1;
        }
    }
    if(index == 0){
        cout<<"NONE"<<endl;
    }
    return 0;
}