1036. Boys vs Girls (25)

性别区分的学生评分差异

最新推荐文章于 2022-08-13 23:48:47 发布

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本文介绍了一种算法，用于找出所有男性学生中的最低分数与所有女性学生中的最高分数之间的差距，并展示如何处理输入数据，包括学生的姓名、性别、ID 和成绩，确保能够正确输出结果。

This time you are asked to tell the difference between the lowest grade of all the male students and the highest grade of all the female students.

Input Specification:

Each input file contains one test case. Each case contains a positive integer N, followed by N lines of student information. Each line contains a student's name, gender, ID and grade, separated by a space, where name and ID are strings of no more than 10 characters with no space, gender is either F (female) or M (male), and grade is an integer between 0 and 100. It is guaranteed that all the grades are distinct.

Output Specification:

For each test case, output in 3 lines. The first line gives the name and ID of the female student with the highest grade, and the second line gives that of the male student with the lowest grade. The third line gives the difference grade_F-grade_M. If one such kind of student is missing, output "Absent" in the corresponding line, and output "NA" in the third line instead.

Sample Input 1:

3
Joe M Math990112 89
Mike M CS991301 100
Mary F EE990830 95

Sample Output 1:

Mary EE990830
Joe Math990112
6

Sample Input 2:

1
Jean M AA980920 60

Sample Output 2:

Absent
Jean AA980920
NA

#include <iostream>
#include <string>
#include <algorithm>

using namespace std;
struct stu{
    string name;
    string num;
    int grade;
    stu() : name("Absent"), grade(0){};
};


int main()
{
    int n, grade;
    string name, sex, num;
    stu maxF, minM;
    cin >> n;
    cin.get();
    while(n--)
    {
        cin >> name >> sex >> num >> grade;
        if(sex == "F")
        {
            if(maxF.name == "Absent")
            {
                maxF.name = name;
                maxF.grade = grade;
                maxF.num = num;
            }
            else if(maxF.grade < grade)
            {
                maxF.name = name;
                maxF.grade = grade;
                maxF.num = num;
            }
        }
        if(sex == "M")
        {
            if(minM.name == "Absent")
            {
                minM.name = name;
                minM.grade = grade;
                minM.num = num;
            }
            else if(minM.grade > grade)
            {
                minM.name = name;
                minM.grade = grade;
                minM.num = num;
            }
        }
    }
    int flag = 0;
    if(maxF.name == "Absent")
    {
        cout << "Absent" << endl;
        flag = 1;
    }
    else{
        cout << maxF.name << " " << maxF.num << endl;
    }
    if(minM.name == "Absent")
    {
        cout << "Absent" << endl;
        flag = 1;
    }
    else{
        cout << minM.name << " " << minM.num << endl;
    }
    if(flag)
        cout << "NA" << endl;
    else
        cout << maxF.grade-minM.grade << endl;
    return 0;
}