OOP HomeWork

2025-08-11 00:01:30 +08:00
commit e8a5ca2363
119 changed files with 3187 additions and 0 deletions
--- a/oop_hw3/hw2/main.cpp
+++ b/oop_hw3/hw2/main.cpp
@@ -0,0 +1,91 @@
+#include <iostream>
+#include <cmath>
+#include <iomanip>
+#define M_PI 3.14159265358979323846
+using namespace std;
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+class Fraction {
+private:
+	int* p;
+public:
+	Fraction():p(nullptr){}
+	//<2F><><EFBFBD><EFBFBD>ֻ<EFBFBD>ܴ<EFBFBD><DCB4><EFBFBD>СΪ30<33><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	Fraction(int* x) {
+		if (p) delete[] p;
+		p = new int[30];
+		for (int i = 0; i < 30 ;i++) {
+			p[i] = x[i];
+		}
+	}
+	Fraction(const Fraction& x) {
+		if(p) delete[] p;
+		p = new int[30];
+		for (int i = 0; i < 30;i++) {
+			p[i] = x.p[i];
+		}
+	}
+	Fraction& operator=(const Fraction& x) {
+		if(p) delete[] p;
+		p = new int[30];
+		for (int i = 0; i < 30;i++) {
+			p[i] = x.p[i];
+		}
+	}
+	friend ostream& operator<<(ostream& os, const Fraction& x) {
+		for (int i = 0;i < 30;i++) {
+			os << x.p[i] << " ";
+		}
+		return os;
+	}
+	~Fraction() {
+		delete[] p;
+	}
+	void DuiYingFenshu(int x) {
+		long long fenzi = 1, fenmu = 0;
+		for (int i = x - 1; i >= 0; --i) {
+			long long temp = fenzi;
+			fenzi = p[i] * fenzi + fenmu;
+			fenmu = temp;
+		}
+		double val = (double)fenzi / fenmu;
+		double cha = M_PI - val;
+		cout << setprecision(16);
+		cout << "<EFBFBD><EFBFBD>" << x << "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>" << fenzi << "/" << fenmu << endl;
+		cout << "<EFBFBD><EFBFBD>" << x << "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>" << val << endl;
+		cout << "<EFBFBD><EFBFBD> PI <20><><EFBFBD>" << cha << endl;
+	}
+};
+//<2F><>һ<EFBFBD><D2BB>С<EFBFBD><D0A1>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
+int* out(double x) {
+	double t = x;
+	double temp;
+	int* tmp;
+	tmp = new int[30];
+	tmp[0] = floor(t);
+	t -= tmp[0];
+	for (int i = 1;i < 30;i++) {
+		temp = 1 / (t);
+		tmp[i] = floor(temp);
+		temp -= tmp[i];
+		t = temp;
+	}
+	return tmp;
+}
+
+int main() {
+	//<2F><><EFBFBD><EFBFBD>out<75><74><EFBFBD><EFBFBD>
+	int* a;
+	a = out(M_PI);
+	for (int i = 0;i < 30;i++) {
+		cout << a[i] << " ";
+	}
+	cout << endl;
+
+	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	Fraction test(a);
+	for (int i = 1;i < 30;i++) {
+		test.DuiYingFenshu(i);
+		cout << endl;
+	}
+	return 0;
+}