122 lines
2.7 KiB
C++
122 lines
2.7 KiB
C++
#include <iostream>
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#include <fstream>
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#include <string>
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#include <Windows.h>
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#include <cstdio>
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#include <time.h>
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using namespace std;
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class Set {
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private:
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static int N, cnt; // ìîùíîñòü óíèâåðñóìà è ñ÷åò÷èê ìíîæåñòâ
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int n; // ìîùíîñòü ìíîæåñòâà
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char S; // òåã è ïàìÿòü äëÿ ìíîæåñòâà
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bool* A;
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public:
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Set operator | (const Set&) const; // îáúåäèíåíèå
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Set& operator |= (const Set&);
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Set operator & (const Set&) const; // ïåðåñå÷åíèå
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Set& operator &= (const Set&);
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Set operator ~ () const; // äîïîëíåíèå äî óíèâåðñóìà
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void Show(); // âûâîä ìíîæåñòâà íà ýêðàí
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int power() { return n; } // ïîëó÷åíèå ìîùíîñòè
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Set(char);// êîíñòðóêòîð ìíîæåñòâà
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Set(); // åùå êîíñòðóêòîð — ïî óìîë÷àíèþ
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Set(const Set&); // êîíñòðóêòîð êîïèè
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Set(Set&&); // ïåðåìåùàþùèé êîíñòðóêòîð (C++11)
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Set operator = (const Set&); // îïåðàòîð ïðèñâàèâàíèÿ
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Set operator = (Set&&); //ïðèñâàèâàíèå ñ ïåðåìåùåíèåì (C++11)
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~Set() { delete[] A; } // äåñòðóêòîð
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};
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Set::Set() : n(0), S('A' + cnt++), A(new bool[N] {0}) {};
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Set::Set(char) : S('A' + cnt++), n(0), A(new bool[N] {0}) {
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for (int i = 0; i < N; i++)
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if (rand() % 2) {
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A[i] = true;
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n++;
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}
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cout << '\n' << S << " = [";
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for (int i = 0; i < N; i++)
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if (A[i]) cout << char(i + 'A');
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cout << "]";
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}
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Set::Set(const Set& B) : S('A' + cnt++), n(B.n), A(new bool[N] {0}) {
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bool* dst(A), * src(B.A); // Èíèöèàëèçàöèÿ àäðåñîâ/ñ÷åò÷èêîâ
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for (int i = 0; i < N; i++) *dst++ = *src++;
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}
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Set Set:: operator= (const Set& B) {
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if (this != &B) {
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bool* dst(A), * src(B.A); n = B.n;
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for (int i = 0; i < N; i++) *dst++ = *src++;
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S = 'A' + cnt++;
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}
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return *this;
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}
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Set& Set :: operator &= (const Set& B)
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{
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Set C(*this);
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n = 0;
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for (int i = 0; i < N; ++i) {
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if (C.A[i] && B.A[i]) { A[i] = true; n++; }
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else A[i] = false;
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}
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return *this;
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}
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Set Set :: operator & (const Set& B) const
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{
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Set C(*this);
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return std::move(C &= B);
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}
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Set& Set :: operator |= (const Set& B)
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{
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for (int i = 0; i < N; ++i)
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if (B.A[i]) {
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A[i] = true;
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n++;
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}
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return *this;
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}
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Set Set :: operator | (const Set& B) const
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{
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Set C(*this);
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return std::move(C |= B);
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}
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Set Set :: operator ~ () const
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{
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Set C;
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for (int i = 0; i < N; ++i) { // Öèêë ïî óíèâåðñóìó
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C.A[i] = !A[i];
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}
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return std::move(C);
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}
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Set::Set(Set&& B) : S('A' + cnt++), n(B.n), A(B.A)
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{
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B.A = nullptr;
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} // Êîïèðîâàíèå ñ ïåðåíîñîì
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Set Set:: operator = (Set&& B) // Ïðèñâàèâàíèå ñ ïåðåíîñîì
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{
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if (this != &B)
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{
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n = B.n; A = B.A; S = 'A' + cnt++; B.A = nullptr;
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}
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return *this;
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}
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void Set::Show() {
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cout << '\n' << S << " = [";
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for (int i = 0; i < N; i++) if(A[i]) cout << char(i + 'A');
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cout << "]";
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} |