PAT_甲级_1036 Boys vs Girls (25分) (C++)【签到题/结构体排序】

目录

​​1，题目描述​​

​​ 题目大意​​

​​2，思路​​

​​3，代码​​

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1，题目描述

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

 题目大意

输出女生中成绩最高的、男生中成绩最低的人的名字和ID，以及他们两人的成绩差（题目保证无相同的两个成绩）。

 

2，思路

结构体排序。SHOW CODE

 

3，代码

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
using namespace std;

struct stu{
    string name, ID;
    int grade;
};
bool cmp1(stu a, stu b){
    return a.grade > b.grade;
}
int main(){
//#ifdef ONLINE_JUDGE
//#else
//    freopen("1.txt", "r", stdin);
//#endif

    int n;
    cin>>n;

    vector<stu> male, female;
    string name, id;
    char gender;
    int grade;
    for(int i = 0; i < n; i++){
        cin>>name>>gender>>id>>grade;
        if(gender == 'M')
            male.push_back({name, id, grade});
        else
            female.push_back({name, id, grade});
    }
    sort(male.begin(), male.end(), cmp1);
    sort(female.begin(), female.end(), cmp1);

    int flag = 0;
    if(female.size() == 0){
        cout<<"Absent"<<endl;
        flag = 1;
    }else cout<< female[0].name <<' '<< female[0].ID << endl;

    if(male.size() == 0){
        cout<<"Absent"<<endl;
        flag = 1;
    }else cout<< male[male.size() - 1].name <<' '<< male[male.size() - 1].ID << endl;

    if(flag == 1) cout<<"NA";
    else cout<<female[0].grade - male[male.size()-1].grade;

    return 0;
}