Course Topics:

Sorting and Search Algorithms

• Sorting: Learn basic sorting algorithms: bubble sort, insertion sort, quick sort, merge sort.
• Search: Search algorithms: linear search, binary search, graph search (depth and width search).

Example of sorting by merge:

void merge(vector<int>& arr, int left, int mid, int right) {
    int n1 = mid - left + 1;
    int n2 = right - mid;

    vector<int> leftArr(n1), rightArr(n2);

    for (int i = 0; i < n1; i++)
        leftArr[i] = arr[left + i];
    for (int i = 0; i < n2; i++)
        rightArr[i] = arr[mid + 1 + i];

    int i = 0, j = 0, k = left;
    while (i < n1 && j < n2) {
        if (leftArr[i] <= rightArr[j])
            arr[k++] = leftArr[i++];
        else
            arr[k++] = rightArr[j++];
    }

    while (i < n1) arr[k++] = leftArr[i++];
    while (j < n2) arr[k++] = rightArr[j++];
}

Analyzing the complexity of algorithms

• Complexity Theory: Fundamentals of analyzing the complexity of algorithms (O-notation, worst case, best case, and average case).
• How to analyze the execution time of algorithms and use this information to select the most efficient methods.

Example of complexity analysis:

• Bubble sort – O(n^2)
• Fast sorting – O(n log n) in the average case.

Memory management

• Dynamic memory allocation: Using new, delete, and standard containers such as vector and map.
• Memory leaks: How to avoid memory leaks and manage dynamic resources.
• Smart pointers: Using shared_ptr, unique_ptr for memory management and automatic resource release.

Example of using smart pointers:

#include <memory>
class Example {
Public:
    void show() { cout << “Hello, world!” << endl; }
};

int main() {
    unique_ptr<Example> ptr = make_unique<Example>();
    ptr->show();
    return 0; // The smart pointer will automatically free memory
}

Multitasking and Parallel Computing

• Multitasking: Basics of working with threads, using library.
• Parallel computing: Using multithreading to speed up calculations, working with asynchronous tasks, error handling in multitasking mode.
• Parallel Algorithms: Using algorithms to speed up processing of big data.

Multitasking example:

    #include <iostream>
    #include <thread>

    void printHello() {
        std::cout << “Hello from thread!” << std::endl;
    }

    int main() {
        std::thread t(printHello);
        t.join(); // Waiting for thread completion
        return 0;
    }

Code and performance optimization

• Speeding up execution: Using efficient algorithms and data structures to reduce program execution time.
• Profiling Tools: How to analyze program performance using tools such as Valgrind or the gprof profiler.
• Memory caching and optimization: How to minimize memory accesses and use caching to improve performance.

Optimization example:

Replacing nested loops with more efficient algorithms (e.g., using hash tables to search in O(1) instead of O(n)).

What you’ll get after completing the course:

• An understanding and application of complex sorting and searching algorithms, including algorithms for big data.
• Skills in analyzing and optimizing the complexity of algorithms, understanding the importance of choosing the right data structures.
• Experience in working with dynamic memory, preventing memory leaks, using smart pointers.
• Knowledge and practical skills in multitasking and parallel computing to accelerate computation in real-world projects.
• Know how to profile and optimize code to achieve maximum performance.

Course fee: $400

The post Advanced Course: “Algorithms and Optimization in C++” appeared first on VittorOmeo.

Course Topics:

Classes and Objects

• Classes: How to create and define classes in C++, using the constructor and destructor to initialize and clean up objects.
• Objects: Creating instances of classes and working with them.

Example:

Class Car {
public:
    string model;
    int year;

    // Class constructor
    Car(string m, int y) {
        model = m;
        year = y;
    }

    void displayInfo() {
        cout << “Model: ‘ << model << ’, Year: ” << year << year << endl;
    }
};

int main() {
    Car myCar(“Toyota”, 2020);
    myCar.displayInfo();
    return 0;
}

Inheritance and polymorphism

• Inheritance: Creating new classes based on existing classes (derived classes).
• Polymorphism: Using virtual functions to implement dynamic binding, allowing child classes to override methods of parent classes.

Example:

Class Animal {
Public:
    virtual void sound() { cout << “Some sound” << endl; }
};

class Dog : public Animal {
Public:
    void sound() override { cout << “Bark” << endl; }
};

int main() {
    Animal* animal = new Dog();
    animal->sound(); // Output “Bark” (dynamic binding)
    delete animal;
    return 0;
}

Operator overloading

Use operator overloading to create more intuitive classes. For example, overloading the + operator to add two objects.

Example:

class Point {
Public:
    int x, y;

    Point(int a, int b) : x(a), y(b) {}

    // Overload operator +
    Point operator+(const Point& other) {
        return Point(x + other.x, y + other.y);
    }
};

int main() {
    Point p1(1, 2), p2(3, 4);
    Point p3 = p1 + p2; // Overloaded operator + is used
    cout << “Sum of points: (” << p3.x << ”, ‘ << p3.y << ’)” << endl;
    return 0;
}

Working with pointers

• How to use pointers to work with dynamic memory.
• Advantages and risks of working with pointers: working with arrays, passing objects by reference and pointers, dynamic memory allocation.

Example:

int main() {
    int* ptr = new int(10); // Memory allocation
    cout << “Value: ” << *ptr << endl; // Pointer dereferencing
    delete ptr; // Memory freeing
    return 0;
}

Standard Template Library (STL)

• Exploring standard containers and algorithms in C++ for working with data collections.
• Introduction to containers such as vectors (vector), sets (set), lists (list), maps (map).

Example:

    #include <iostream>
    #include <vector>
    using namespace std;

    int main() {
        vector<int> numbers = {1, 2, 3, 4, 5};
        for (int num : numbers) {
            cout << num << “ ”;
        }
        cout << endl;
        return 0;
    }

What you will get after completing the course:

• Ability to work with classes and objects, design data structures using OOP.
• A deep understanding of inheritance and polymorphism, which allow you to create flexible and extensible programs.
• Skills in operator overloading to improve code readability and functionality.
• Experience with pointers and dynamic memory allocation.
• Knowledge of using STL to work efficiently with data in real projects.

Course fee: 250 $.

The post Intermediate Level Course: “Object Oriented Programming (OOP) in C++” appeared first on VittorOmeo.

Course topics:

Introduction to C++

• Getting acquainted with C++ language: history, peculiarities and spheres of application.
• Installing and customizing a development environment (e.g. Visual Studio, Code::Blocks, or CLion).
• C++ program structure: how a basic program looks like and how to compile code.

Example code:

#include <iostream>
using namespace std;

int main() {
    cout << “Hello, World!” << endl;
    return 0;
}

Variables and data types

• Basic data types in C++: int, double, char, bool, string.
• Declaration and initialization of variables.

Example:

int age = 25; // Variable of integer type
double price = 19.99; // Floating-point variable
char grade = 'A'; // Character variable
bool is_student = true; // Boolean variable
string name = “John”; // String variable

Conditional operators and loops

• Using the if statement to make decisions.
• Switch operator for choosing between several options.
• For, while, do-while cycles for repeating actions.
• Example with if-else and for loop:

int number = 10;
if (number > 0) {
    cout << “Positive number” << endl;
} else {
    cout << “Negative number or zero” << endl;
}

for (int i = 1; i <= 5; ++i) {
    cout << “Iteration ” << i << endl;
}

I/O Basics

• How to get data from the user using cin.
• How to display data on the screen using cout.

Example:

int number;
cout << “Enter a number: ”;
cin >> number;
cout << “You entered: ” << number << endl;

Simple C++ programs

• Writing small programs to consolidate theoretical knowledge.

Examples:

A program to calculate the sum of two numbers:

int num1, num2;
cout << “Enter first number: ”; cin >> num1;
cout << “Enter second number: ”; cin >> num2;
cout << “The sum is: ” << (num1 + num2) << endl;

Program to determine the parity of a number:

        int number;
        cout << “Enter a number: ”;
        cin >> number;
        if (number % 2 == 0) {
            cout << “Even number” << endl;
        } else {
            cout << “Odd number” << endl;
        }

What you will get after completing the course:

• An understanding of C++ program syntax and structure.
• Ability to write simple programs that solve basic problems.
• Experience in working with data input/output, conditional operators and loops.
• Fundamentals of development using C++ for subsequent more advanced courses.

Cost of the course: $100

The post A Course for Beginners: “C++ Fundamentals”. appeared first on VittorOmeo.