1006 Sign In and Sign Out (25 分)

最新推荐文章于 2022-08-12 23:25:22 发布

原创最新推荐文章于 2022-08-12 23:25:22 发布 · 197 阅读

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博客提及 1006 Sign In and Sign Out 题目，认为是送分题，未涉及更多信息技术相关详细内容。

#include <iostream>
#include <string>
using namespace std;
typedef struct Person{
    string ID="";
    string sign_in="";
    string sign_out="";
}*Records;
int main()
{
    int num_of_persons;
    string unlocked_time="23:59:59";
    string lock_time="00:00:00";
    string unlocked_person="";
    string lock_person="";
    cin>>num_of_persons;//
    // Records persons=(Records)malloc(num_of_persons* sizeof(Person));
    //如果使用malloc，则无法为string分配空间，会导致在用cin输入string时出错
    //但是可以通过赋值的方式改变string
    Records persons=new Person[num_of_persons];
    for (int i = 0; i < num_of_persons; ++i) {
        cin>>persons[i].ID>>persons[i].sign_in>>persons[i].sign_out;
        if(persons[i].sign_in.compare(unlocked_time)<0){
            unlocked_person=persons[i].ID;
            unlocked_time=persons[i].sign_in;
        }
        if(persons[i].sign_out.compare(lock_time)>0) {
            lock_person = persons[i].ID;
            lock_time = persons[i].sign_out;
        }
    }
    if(unlocked_person.empty()||lock_person.empty())exit(EOVERFLOW);
    cout<<unlocked_person<<" "<<lock_person;
    return 0;
}