From 65f6397bb288ab3a8313e26259d02df43f7e1454 Mon Sep 17 00:00:00 2001
From: Stoycho Kyosev <68247567+stoychoX@users.noreply.github.com>
Date: Tue, 12 Apr 2022 20:13:46 +0300
Subject: Add files via upload

---
 pract KN/week8/Vector.cpp | 90 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 pract KN/week8/Vector.cpp

(limited to 'pract KN/week8/Vector.cpp')

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");
+}
-- 
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