Наконец-то дошли руки.
| Код |
#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
struct date
{
int day;
int month;
int year;
bool operator <= (const date& obj) const
{
return ( (day <= obj.day) && (month <= obj.month) && (year <= obj.year) );
}
bool operator >= (const date& obj) const
{
return !(*this <= obj);
}
date (int d = 0, int m = 0, int y = 0):day(d), month(m), year(y) {}
date(const date& obj):day(obj.day),month(obj.month),year(obj.year){}
};
class request
{
private:
std::string m_destination;
std::string m_name;
friend std::ostream& operator << (std::ostream& stream, const request& obj);
friend std::istream& operator >> (std::istream& stream, request& obj);
public:
date m_fdate;
int m_flight;
request(const std::string& destination, int flight, const std::string name, const date& fdate):m_destination(destination),m_flight(flight),m_name(name),m_fdate(fdate){}
request():m_destination("N/A"), m_flight(-1), m_name("N/A"), m_fdate(0,0,0){}
};
std::ostream& operator << (std::ostream& stream, const request& obj)
{
stream << "Name: " << obj.m_name << "\nDestination: " << obj.m_destination << "\nFlight: " << obj.m_flight << std::endl;
stream << "Date: " << obj.m_fdate.day << ' ' << obj.m_fdate.month << ' ' << obj.m_fdate.year;
return stream;
}
std::istream& operator >> (std::istream& stream, request& obj)
{
std::cout << "Enter name: ";
stream >> obj.m_name;
std::cout << "Enter destination: ";
stream >> obj.m_destination;
std::cout << "Enter flight: ";
stream >> obj.m_flight;
std::cout << "Enter day: ";
stream >> obj.m_fdate.day;
std::cout << "Enter month: ";
stream >> obj.m_fdate.month;
std::cout << "Enter year: ";
stream >> obj.m_fdate.year;
return stream;
}
std::istream& operator >> (std::istream& stream, date& obj)
{
std::cout << "Enter day: ";
stream >> obj.day;
std::cout << "Enter month: ";
stream >> obj.month;
std::cout << "Enter year: ";
stream >> obj.year;
return stream;
}
class find_flight
{
private:
int m_flight;
date m_start_date;
date m_end_date;
public:
bool operator() (const request& obj) const
{
if ( (obj.m_fdate >= m_start_date) && (obj.m_fdate <= m_end_date) && (obj.m_flight == m_flight) )
return true;
return false;
}
find_flight(int flight, const date& start_date, const date& end_date):m_flight(flight), m_start_date(start_date), m_end_date(end_date){}
};
template <typename PRED, typename InIter, typename OutIter> void copy_if(InIter FIRST, InIter LAST, OutIter OUT, PRED Cond)
{
for ( ; FIRST != LAST; ++FIRST)
if ( Cond(*FIRST) ) OUT = *FIRST;
}
int main(int argc, char* argv[])
{
std::vector<request> arr;
char choice = '\0';
while ( (choice != 'n') && (choice != 'N') )
{
request buf;
std::cin >> buf;
arr.push_back( buf );
std::cout << "One more request to add? y/n";
std::cin >> choice;
}
//Показать все рейсы
std::copy( arr.begin(), arr.end(), std::ostream_iterator<request>(std::cout, "\n") );
//Сбор данных о искомых рейсах
date start_date;
date end_date;
int flight = 0;
std::cout << "Enter start date\n";
std::cin >> start_date;
std::cout << "Enter end date\n";
std::cin >> end_date;
std::cout << "Enter flight: ";
std::cin >> flight;
//Поиск рейса по критерию и вывод на экран
copy_if( arr.begin(), arr.end(), std::ostream_iterator<request>(std::cout, "\n"), find_flight(flight, start_date, end_date) );
std::cin.sync();
std::cin.get();
return 0;
}
|
для тех кто боится std::
| Код |
#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
using std::ostream;
using std::istream;
using std::cout;
using std::cin;
using std::endl;
using std::string;
using std::vector;
using std::ostream_iterator;
struct date
{
int day;
int month;
int year;
bool operator <= (const date& obj) const
{
return ( (day <= obj.day) && (month <= obj.month) && (year <= obj.year) );
}
bool operator >= (const date& obj) const
{
return !(*this <= obj);
}
date (int d = 0, int m = 0, int y = 0):day(d), month(m), year(y) {}
date(const date& obj):day(obj.day),month(obj.month),year(obj.year){}
};
class request
{
private:
string m_destination;
string m_name;
friend ostream& operator << (ostream& stream, const request& obj);
friend istream& operator >> (istream& stream, request& obj);
public:
int m_flight;
date m_fdate;
request(const string& destination, int flight, const string name, const date& fdate):m_destination(destination),m_flight(flight),m_name(name),m_fdate(fdate){}
request():m_destination("N/A"), m_flight(-1), m_name("N/A"), m_fdate(0,0,0){}
};
ostream& operator << (ostream& stream, const request& obj)
{
stream << "Name: " << obj.m_name << "\nDestination: " << obj.m_destination << "\nFlight: " << obj.m_flight << endl;
stream << "Date: " << obj.m_fdate.day << ' ' << obj.m_fdate.month << ' ' << obj.m_fdate.year;
return stream;
}
istream& operator >> (istream& stream, request& obj)
{
cout << "Enter name: ";
stream >> obj.m_name;
cout << "Enter destination: ";
stream >> obj.m_destination;
cout << "Enter flight: ";
stream >> obj.m_flight;
cout << "Enter day: ";
stream >> obj.m_fdate.day;
cout << "Enter month: ";
stream >> obj.m_fdate.month;
cout << "Enter year: ";
stream >> obj.m_fdate.year;
return stream;
}
istream& operator >> (istream& stream, date& obj)
{
cout << "Enter day: ";
stream >> obj.day;
cout << "Enter month: ";
stream >> obj.month;
cout << "Enter year: ";
stream >> obj.year;
return stream;
}
class find_flight
{
private:
int m_flight;
date m_start_date;
date m_end_date;
public:
bool operator() (const request& obj) const
{
if ( (obj.m_fdate >= m_start_date) && (obj.m_fdate <= m_end_date) && (obj.m_flight == m_flight) )
return true;
return false;
}
find_flight(int flight, const date& start_date, const date& end_date):m_flight(flight), m_start_date(start_date), m_end_date(end_date){}
};
template <typename PRED, typename InIter, typename OutIter> void copy_if(InIter FIRST, InIter LAST, OutIter OUT, PRED Cond)
{
for ( ; FIRST != LAST; ++FIRST)
if ( Cond(*FIRST) ) OUT = *FIRST;
}
int main(int argc, char* argv[])
{
vector<request> arr;
char choice = '\0';
while ( (choice != 'n') && (choice != 'N') )
{
request buf;
cin >> buf;
arr.push_back( buf );
cout << "One more request to add? y/n";
cin >> choice;
}
//Показать все рейсы
copy( arr.begin(), arr.end(), ostream_iterator<request>(cout, "\n") );
//Сбор данных о искомых рейсах
date start_date;
date end_date;
int flight = 0;
cout << "Enter start date\n";
cin >> start_date;
cout << "Enter end date\n";
cin >> end_date;
cout << "Enter flight: ";
cin >> flight;
//Поиск рейса по критерию и вывод на экран
copy_if( arr.begin(), arr.end(), ostream_iterator<request>(cout, "\n"), find_flight(flight, start_date, end_date) );
cin.sync();
cin.get();
return 0;
}
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Я для простоты разинкапсулировал два поля ... времени особо не было, чтобы подправить, так как вспомнил я об этом в самый послдний момент  |
