2 files changed, 117 insertions, 0 deletions
diff --git a/pract KN/week8/Vector.cpp b/pract KN/week8/Vector.cpp
new file mode 100644
index 0000000..b288e12
--- /dev/null
+++ b/pract KN/week8/Vector.cpp
@@ -0,0 +1,90 @@
+#include "Vector.h"
+
+void Vector::resize()
+{
+	capacity *= 2;
+	int* newArr = new int[capacity];
+	for (size_t i = 0; i < size; i++)
+	{
+		newArr[i] = arr[i];
+	}
+	free();
+	arr = newArr;
+}
+
+void Vector::free()
+{
+	delete[] arr;
+}
+
+void Vector::copyFrom(const Vector& other)
+{
+	size = other.size;
+	capacity = other.capacity;
+	arr = new int[capacity];
+	for (int i = 0; i < size; i++)
+	{
+		arr[i] = other.arr[i];
+	}
+}
+
+Vector::Vector()
+{
+	arr = new int[2];
+	capacity = 2;
+	size = 0;
+}
+
+Vector::Vector(const Vector& other)
+{
+	copyFrom(other);
+}
+
+Vector& Vector::operator=(const Vector& other)
+{
+	if (this != &other) {
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+
+Vector::~Vector()
+{
+	free();
+}
+
+void Vector::push_back(const int element)
+{
+	if (size < capacity) {
+		arr[size] = element;
+		size++;
+	}
+	else
+	{
+		resize();
+		push_back(element);
+	}
+}
+
+int Vector::getSize() const
+{
+	return size;
+}
+
+int& Vector::operator[](const int index)
+{
+	if (index >= 0 && index < size) {
+		return arr[index];
+	}
+	throw std::exception("Out of range exception");
+
+}
+
+const int& Vector::operator[](int index) const
+{
+	if (index >= 0 && index < size) {
+		return arr[index];
+	}
+	throw std::exception("Out of range exception");
+}
diff --git a/pract KN/week8/Vector.h b/pract KN/week8/Vector.h
new file mode 100644
index 0000000..db7760d
--- /dev/null
+++ b/pract KN/week8/Vector.h
@@ -0,0 +1,27 @@
+#pragma once
+#include<exception>
+class Vector
+{
+	int* arr = nullptr;
+	int size;
+	int capacity;
+
+	void resize();
+	void free();
+	void copyFrom(const Vector&);
+
+public:
+	Vector();
+	Vector(const Vector&);
+	Vector& operator = (const Vector&);
+	~Vector();
+
+	void push_back(const int);
+	int getSize()const;
+	int& operator [](const int);
+	const int& operator [](int)const ;
+
+
+
+};
+