185 lines
5.9 KiB
C++
185 lines
5.9 KiB
C++
#include <time.h>
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#include <chrono>
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#include <fstream>
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#include <string>
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#include <set>
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#include <vector>
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#include <iterator>
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#include <algorithm>
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#include <iostream>
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using namespace std;
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using MySet = set<int>;
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using MyIt = set<int>::iterator;
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using MySeq = vector<MyIt>;
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const int lim = 16;
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class MyCont {
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int power;
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char tag;
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MySet setA;
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MySeq Sequence;
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MyCont& operator = (const MyCont&) = delete;
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MyCont& operator = (MyCont&&) = delete;
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public:
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MyCont(int, char);
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MyCont(const MyCont&);
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MyCont(MyCont&&);
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MyCont& operator |= (const MyCont&);
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MyCont operator | (const MyCont& rgt) const{
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MyCont result(*this); return (result |= rgt);
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}
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MyCont& operator -= (const MyCont&);
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MyCont operator - (const MyCont& rgt) const {
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MyCont result(*this); return (result -= rgt);
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}
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MyCont& operator ^= (const MyCont&);
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MyCont operator ^ (const MyCont& rgt) const
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{
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MyCont result(*this); return (result ^= rgt);
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}
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void Merge(const MyCont&);
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void Concat(const MyCont& rgt);
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void Subst(const MyCont&, size_t);
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void Change(const MyCont&, size_t);
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void Show() const;
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size_t Power() const { return Sequence.size(); }
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};
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MyCont::MyCont(int p, char t = 'R') : power(p), tag(t) {
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for (int i = 0; i < power; ++i){
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Sequence.push_back(setA.insert(rand() % lim).first);
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}
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}
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MyCont::MyCont(MyCont&& source) //Копия "с переносом"
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: power(source.power), tag(source.tag),
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setA(move(source.setA)), Sequence(move(source.Sequence)) { }
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MyCont::MyCont(const MyCont& source) //Конструктор копии
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: power(source.power), tag(source.tag) {
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for (auto x : source.setA) Sequence.push_back(setA.insert(x).first);
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}
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void MyCont::Show() const {
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using std::cout;
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cout << "\n" << tag << ": ";
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for (auto x : setA) cout << x << " "; //Выдача множества
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cout << "\n < ";
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for (auto x : Sequence) cout << *x << " "; //Выдача последовательности
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cout << ">";
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}
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MyCont& MyCont::operator -= (const MyCont& rgt) { //Разность мн-в
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MySet temp;
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MySeq stemp;
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for (auto x : setA)
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if (rgt.setA.find(x) == rgt.setA.end())
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stemp.push_back(temp.insert(x).first);
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temp.swap(setA);
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stemp.swap(Sequence);
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return *this;
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}
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MyCont& MyCont::operator |= (const MyCont& rgt) { //Объединение
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for (auto x : rgt.setA) Sequence.push_back(setA.insert(x).first);
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return *this;
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}
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void MyCont::Merge(const MyCont& rgt) { //Слияние
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using std::sort;
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MySeq temp(rgt.Sequence), res;
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auto le = [](MyIt a, MyIt b)->bool { return *a < *b; };//Критерий
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sort(Sequence.begin(), Sequence.end(), le);
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sort(temp.begin(), temp.end(), le);
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std::merge(Sequence.begin(), Sequence.end(), temp.begin(), temp.end(),
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std::back_inserter(res), le); //Слияние для последовательностей...
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setA.insert(rgt.setA.begin(), rgt.setA.end()); //... и объединение множеств
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Sequence.swap(res);
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}
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void MyCont::Concat(const MyCont& rgt) { //Сцепление
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for (auto x : rgt.Sequence) Sequence.push_back(setA.insert(*x).first);
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}
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void MyCont::Subst(const MyCont& rgt, size_t p) { //Подстановка
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if (p >= Power()) Concat(rgt);
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else {
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MySeq stemp(Sequence.begin(), Sequence.begin() + p); //Начало
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std::copy(rgt.Sequence.begin(), rgt.Sequence.end(), back_inserter(stemp)); //Вставка
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std::copy(Sequence.begin() + p, Sequence.end(), back_inserter(stemp)); //Окончание
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MySet temp;
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Sequence.clear();
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for (auto x : stemp) Sequence.push_back(temp.insert(*x).first);
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setA.swap(temp);
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}
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}
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void MyCont::Change(const MyCont& rgt, size_t p) { //Замена
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if (p >= Power()) Concat(rgt);
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else {
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MySeq stemp(Sequence.begin(), Sequence.begin() + p); //Начало
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std::copy(rgt.Sequence.begin(), rgt.Sequence.end(), back_inserter(stemp));
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//Замена
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size_t q = p + rgt.Power();
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if (q < Power())
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std::copy(Sequence.begin() + q, Sequence.end(), back_inserter(stemp));
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//Окончание
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MySet temp;
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Sequence.clear();
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for (auto x : stemp) Sequence.push_back(temp.insert(*x).first);
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setA.swap(temp);
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}
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}
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int main() {
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using namespace std::chrono;
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setlocale(LC_ALL, "Russian");
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srand((unsigned int)7); //Пока здесь константа, данные повторяются
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// srand((unsigned int)time(nullptr)); //Разблокировать для случайных данных
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auto rand = [](int d) { return std::rand() % d; }; //Лямбда-функция!
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ofstream fout;
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fout.open("in.txt");
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for (int p = 10; p < 5000; p += 10) {
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int middle_power = 0, set_count = 0;
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auto Used = [&](MyCont& t) { middle_power += t.Power(); ++set_count; };
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MyCont A(p, 'A');
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MyCont B(p, 'B');
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MyCont C(p, 'C');
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MyCont D(p, 'D');
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MyCont E(p, 'E');
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MyCont F(p, 'F');
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MyCont G(p, 'G');
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MyCont H(p, 'H');
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MyCont R(p);
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auto t1 = std::chrono::high_resolution_clock::now();
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A | B; Used(A); Used(B);
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C | D; Used(C); Used(D);
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(A | B) - (C | D); Used(A); Used(B); Used(C); Used(D);
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((A | B) - (C | D)) | E; Used(A); Used(B); Used(C); Used(D); Used(E);
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R.Merge(E); Used(R); Used(E);
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int c = rand(R.Power());
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R.Subst(G, c); Used(R); Used(G);
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c = rand(R.Power());
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R.Change(H, c); Used(R); Used(H);
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auto t2 = std::chrono::high_resolution_clock::now();
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auto dt = duration_cast<duration<double>>(t2 - t1);
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middle_power /= set_count;
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fout << middle_power << ' ' << dt.count() << endl;
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}
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cout << "The end\n";
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fout.close();
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std::cin.get();
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return 0;
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}
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