WB4.12 Использование перегруженных операторов в собственных структурах

RobertDeMilo

Oct 12th, 2023

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#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <iomanip>
#include <sstream>
#include <algorithm>
#include <map>
using namespace std;
class Duration
{
private:
int hour;
int min;
public:
Duration(int hour_ = 0, int min_ = 0)
{
int total = hour_ * 60 + min_;
hour = total / 60;
min = total % 60;
}
int Hour() const
{
return hour;
}
int Min() const
{
return min;
}
};
bool CompareDurations(const Duration& lhs, const Duration& rhs)
{
if (lhs.Hour() == rhs.Hour())
{
return lhs.Min() < rhs.Min();
}
return lhs.Hour() < rhs.Hour();
}
bool operator<(const Duration& lhs, const Duration& rhs)
{
if (lhs.Hour() == rhs.Hour())
{
return lhs.Min() < rhs.Min();
}
return lhs.Hour() < rhs.Hour();
}
ostream& operator<<(ostream& out, const Duration& dur)
{
out << setfill('0');
out << setw(2) << dur.Hour() << ':' << setw(2) << dur.Min();
return out;
}
istream& operator >> (istream& in, Duration& dur)
{
int hour;
in >> hour;
in.ignore();
int min;
in >> min;
dur = Duration(hour, min); // !!!!!!!!!!!!!!!
return in;
}
Duration operator+(const Duration& lhs, const Duration& rhs)
{
return Duration{ lhs.Hour() + rhs.Hour(),lhs.Min() + rhs.Min() };
}
int main()
{
**************************************************************************
vector <Duration> durations;
durations.push_back(Duration{ 1,50 });
durations.push_back(Duration{ 0,50 });
durations.push_back(Duration{ 0,1 });
for (const auto& dur : durations)
{
cout << dur << '\t';
}
cout << endl;
sort(durations.begin(), durations.end());
for (const auto& dur : durations)
{
cout << dur << '\t';
}
**************************************************************************
ifstream input("C:/Users/musta/Downloads/text.txt");
Duration worst;
map<Duration, string> all;
if (input)
{
Duration dur;
string name;
while (input >> dur >> name)
{
if (worst < dur)
{
worst = dur;
}
all[dur] += (name + " "); // если в словаре уже кто-то есть с таким интервалом забега,
// то мы просто добавлем в строчку имени новое имя и в конец дописываем пробел
}
}
ofstream out("result.txt");
for (const auto& durationNames : all)
{
out << durationNames.first << '\t' << durationNames.second << endl;
}
cout << "Worst runner: " << all[worst] << endl;
return 0;
}

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