BB5.1 Зачем нужны функции?

RobertDeMilo

Jun 21st, 2024 (edited)

Never

Add comment

Not a member of Pastebin yet? Sign Up, it unlocks many cool features!

C++ 2.39 KB | None | 0 0

raw download clone embed print report

#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
using namespace std;
enum class Gender
{
FEMALE,
MALE
};
struct Person
{
int age;
Gender gender;
bool is_employed;
};
template <typename InputIt>
int ComputeMedianAge(InputIt range_begin, InputIt range_end)
{
if(range_begin==range_end)
{
return 0;
}
vector<typename InputIt::value_type> range_copy(range_begin,range_end);
auto middle = begin(range_copy) + range_copy.size()/2;
nth_element(begin(range_copy),middle, end(range_copy),[](const Person&lhs, const Person& rhs)
{return lhs.age<rhs.age;});
return middle->age;
}
void PrintStats(vector<Person> persons)
{
auto females_end = partition(begin(persons),end(persons),[](const Person&p)
{return p.gender == Gender::FEMALE; });
auto employed_females_end = partition(begin(persons),females_end,[](const Person&p){return p.is_employed; });
auto employed_males_end = partition(females_end,end(persons),[](const Person&p){return p.is_employed; });
cout << "Median age = " << ComputeMedianAge(begin(persons), end(persons)) << endl;
cout << "Median age for females = " << ComputeMedianAge(begin(persons), females_end) <<endl;
cout << "Median age for males = " << ComputeMedianAge(females_end, end(persons)) << endl;
cout << "Median age for employed females = " << ComputeMedianAge(begin(persons), employed_females_end) << endl;
cout << "Median age for unemployed females = " << ComputeMedianAge(employed_females_end, females_end) << endl;
cout << "Median age for employed males = " << ComputeMedianAge(females_end, employed_males_end) << endl;
cout << "Median age for unemployed males = " << ComputeMedianAge(employed_males_end, end(persons)) << endl;
}
int main()
{
int person_count;
cin >> person_count;
vector<Person> persons;
persons.reserve (person_count);
for(int i=0;i<person_count;++i)
{
int age,gender, is_employed;
cin >> age >> gender >> is_employed;
Person person {age,static_cast<Gender>(gender),is_employed==1};
persons.push_back(person);
}
PrintStats(persons);
return 0;
}

Add Comment

Please, Sign In to add comment