PAT 甲级 1083 List Grades (25 分)-蒲公英云

PAT 甲级 1083 List Grades (25 分)

1083 List Grades (25 分)

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<algorithm>
#include<cstdio>
#include<cstring>
using namespace std;
struct node{
    string name,id;
    int grade,f;
    node(){
        this->grade=-1;
        this->f=0;
    }
};
node a[102];
void init()
{
    for(int i=1;i<=100;i++)
    {
        a[i].grade=-1;
        a[i].f=0;
    }
}
int cmp(node a,node b)
{
    return a.grade>b.grade;
}
int main()
{
    int n,i,j,t,min_g,max_g,flag=0;
    string tn,tid;
    scanf("%d",&n);
    init();
    for(i=0;i<n;i++)
    {
        cin>>tn>>tid>>t;
        a[t].name=tn;
        a[t].id=tid;
        a[t].f=1;
    }
    cin>>min_g>>max_g; 
    for(i=max_g;i>=min_g;i--)
    {
        if(a[i].f)
        {
            flag=1;
            cout<<a[i].name<<" "<<a[i].id<<endl;
        }
    }
    if(!flag)
    cout<<"NONE"<<endl;
    return 0;
}