PAT 甲级 1083 List Grades (25 分)

﹏ヽ暗。殇╰゛Y 2024-02-19 21:33 89阅读 0赞

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;
    }