1083. List Grades

1083. List Grades (25)

时间限制

400 ms

内存限制

65536 kB

代码长度限制

16000 B

判题程序

Standard

作者

CHEN, Yue

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<stdio.h>
#include<math.h>
#include<stdlib.h>
#include<string.h>
#include<algorithm>
using namespace std;

struct stu
{
    char name[15], id[15];
    int grade;
}a[100000];

bool cmp(stu x, stu y)
{
    return x.grade > y.grade;
}

int main()
{
    int n, i, flag = 0;
    scanf("%d", &n);
    for(i = 0; i < n; i++)
    {
        scanf("%s%s%d", a[i].name, a[i].id, &a[i].grade);
    }
    int grade1, grade2;
    scanf("%d%d", &grade1, &grade2);
    sort(a, a + n, cmp);
    for(i = 0; i < n; i++)
    {
        if(a[i].grade >= grade1 && a[i].grade <= grade2)
        {
            printf("%s %s\n", a[i].name, a[i].id);
            flag = 1;
        }
    }
    if(!flag)
        printf("NONE\n");
    return 0;
}