added sem 8

1 files changed, 176 insertions, 0 deletions

diff --git a/Sem. 08/Nvector/Nvector.cpp b/Sem. 08/Nvector/Nvector.cpp
new file mode 100644
index 0000000..b4f983d
--- /dev/null
+++ b/Sem. 08/Nvector/Nvector.cpp
@@ -0,0 +1,176 @@
+#include "Nvector.h"
+
+Nvector::Nvector(size_t n) : size(n)
+{
+	data = new int[n];
+
+	for (int i = 0; i < n; i++)
+		data[i] = 0;
+}
+
+Nvector::Nvector(const Nvector& other)
+{
+	copyFrom(other);
+}
+
+Nvector& Nvector::operator=(const Nvector& other)
+{
+	if (this != &other)
+	{
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+Nvector::~Nvector()
+{
+	free();
+}
+
+void Nvector::copyFrom(const Nvector& other)
+{
+	size = other.size;
+	data = new int[size];
+
+	for (int i = 0; i < size; i++)
+		data[i] = other.data[i];
+}
+void Nvector::free()
+{
+	delete[] data;
+	size = 0;
+}
+
+
+
+//v += v1;
+Nvector& Nvector::operator+=(const Nvector& other)
+{
+	if (size != other.size)
+		throw "The vectors should have the same size!";
+
+	for (int i = 0; i < size; i++)
+		data[i] += other.data[i];
+
+	return *this;
+}
+
+Nvector& Nvector::operator-=(const Nvector& other)
+{
+	if (size != other.size)
+		throw "The vectors should have the same size!";
+
+	for (int i = 0; i < size; i++)
+		data[i] -= other.data[i];
+	
+	return *this;
+}
+
+const Nvector operator+(const Nvector& lhs, const Nvector& rhs)
+{
+	Nvector lhsCopy(lhs);
+	lhsCopy += rhs;
+
+	return lhsCopy;
+}
+
+const Nvector operator-(const Nvector& lhs, const Nvector& rhs)
+{
+	Nvector lhsCopy(lhs);
+	lhsCopy -= rhs;
+
+	return lhsCopy;
+}
+
+int& Nvector::operator[](size_t index)
+{
+	if (index >= size)
+		throw "Invalid index";
+
+	return data[index];
+}
+
+int Nvector::operator[](size_t index) const
+{
+	if (index >= size)
+		throw "Invalid index";
+
+	return data[index];
+}
+
+size_t Nvector::operator~() const
+{
+	return size;
+}
+
+std::ostream& operator<<(std::ostream& os, const Nvector& v)
+{
+	os << "[ ";
+	for (int i = 0; i < v.size; i++)
+		os << v[i] << " ";
+	os << " ]";
+
+	return os;
+}
+
+std::istream& operator>>(std::istream& is, Nvector& v)
+{
+	for (int i = 0; i < v.size; i++)
+		is >> v[i];
+
+	return is;
+}
+
+bool operator||(const Nvector& lhs, const Nvector& rhs)
+{
+	if (~lhs != ~rhs)
+		return false;
+
+	double coef = (double)lhs[0] / rhs[0];
+
+	double eps = 0.01;
+
+	for (int i = 1; i < ~lhs; i++)
+	{
+		double currCoef = (double)lhs[i] / rhs[i];
+
+		if (abs(currCoef - coef) > eps)
+			return false;
+	}
+	return true;
+}
+
+Nvector& Nvector::operator*=(size_t scalar)
+{
+	for (int i = 0; i < size; i++)
+		data[i] *= scalar;
+
+	return *this;
+}
+
+const Nvector operator*(const Nvector& lhs, size_t scalar)
+{
+	Nvector copy(lhs);
+	copy *= scalar;
+	return copy;
+}
+const Nvector operator*(size_t scalar, const Nvector& lhs)
+{
+	return lhs * scalar;
+}
+size_t operator%(const Nvector& lhs, const Nvector& rhs)
+{
+	if (~lhs != ~rhs)
+		throw "The vectors should have the same size!";
+
+	size_t res = 0;
+	for (int i = 0; ~lhs; i++)
+		res += lhs[i] * rhs[i];
+
+	return res;
+}
+
+size_t operator|=(const Nvector& lhs, const Nvector& rhs)
+{
+	return  lhs % rhs == 0; //the size check is done by %
+}
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