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Welcome to your first day of Python programming! Today, we will be introducing you to the basics of Python programming and getting you started on your journey to becoming a proficient Python programmer. First, let's start with the basics. Python is a high-level, interpreted programming language that is widely used for web development, data analysis, artificial intelligence, and many other applications. It is known for its simplicity, readability, and ease of use, making it a great language for beginners to learn. To get started with Python, you will need to install Python on your computer. You can download the latest version of Python from the official Python website (https://www.python.org/downloads/). Once you have installed Python, you can open the Python interpreter, which is a command-line interface that allows you to enter Python code and see the results. Let's start with a simple example. Open the Python interpreter and type the following code: print("Hello, world!") Press enter, and you should see the output "Hello, world!" printed on the screen. Congratulations, you have just written your first Python program! Now, let's take a closer look at the code. The print() function is a built-in function in Python that allows you to print text to the screen. In this case, we are printing the text "Hello, world!" to the screen. The text is enclosed in double quotes, which tells Python that it is a string. Next, let's talk about variables. In Python, a variable is a name that represents a value. You can assign a value to a variable using the assignment operator =. For example: x = 5 This assigns the value 5 to the variable x. You can then use the variable x in your code: print(x) This will print the value of x, which is 5. Variables can also be assigned to other variables: x = 5 y = x print(y) This will print the value of y, which is also 5, because we assigned y to the value of x. You can also perform arithmetic operations on variables: x = 5 y = 3 print(x + y) # prints 8 print(x - y) # prints 2 print(x * y) # prints 15 print(x / y) # prints 1.6666666666666667 This will perform arithmetic operations on the variables x and y and print the results to the screen. That's it for today's lesson! We hope you have enjoyed your introduction to Python programming, and we look forward to teaching you more in the coming days.

Attention everyone! Want to test your Python skills? Look no further! All the practice questions for beginners are pinned in the first message of this channel. Feel free to answer the questions at your own pace and refer back to them whenever you need a refresher. If you have any questions or need help with a specific concept, don't hesitate to ask in the chat! Happy coding!

We've launched two exciting new channels to help you progress on your coding journey: Foundations Channel: Build a solid understanding of the core concepts of Python. Learn about variables, data types, loops, and essential programming practices. Get comfortable writing clean and efficient Python code. Exploration Channel: Deepen your knowledge with advanced topics and practical applications. Explore functions, data structures, and object-oriented programming. Tackle challenging problems and unleash the power of Python. Which channel sparks your coding curiosity? Join the adventure at: https://t.me/+UZEkdemKsQ8zMzA8

in programming counting (indexing) starts from zero so 1 indicates the second element in the list

indexing (counting) in programming starts from zero so 1 indicates the second element in the list

Question 2 on #binary_search Binary Search: Treasure Hunt! Imagine searching for buried treasure on a coastline. You have distances to the treasure from various points (sorted from smallest to biggest). Binary search helps find the closest distance to the treasure from your ship's location. It works by repeatedly guessing the middle distance and checking if it's the treasure or closer than your acceptable range (tolerance). It's super fast for sorted lists (like your treasure distances). Think of eliminating half the coastline on each guess! Example: Ship at distance 50 meters. Tolerance 10 meters. Distances: [10, 20, 40, 60, 80] Binary search would check: Middle distance (40 meters) - too far, but closer than 60 meters! Left half (now 10, 20, 40) - Bingo! 40 meters is closest within tolerance.

1The function binary_search takes a sorted array nums and a target value target as input. 2. It initializes two variables, left and right, which represent the left and right ends of the search interval, respectively. Initially, left is set to 0 and right is set to the length of the array minus 1. 3.The function enters a while loop that continues as long as left is less than or equal to right. This means that the search interval is still valid. 4.Inside the loop, the function calculates the middle index of the search interval using the formula middle = (left + right) // 2. 5.The function then checks if the target value is at the middle index of the array (nums[middle] == target). 6.If the target is found at the middle index, the function returns the middle index. 7.If the target is less than the value at the middle index (nums[middle] > target), it means that the target must be in the left half of the array. So the function updates the right pointer to middle - 1 to exclude the right half from the search interval. 8.If the target is greater than the value at the middle index (nums[middle] < target), it means that the target must be in the right half of the array. So the function updates the left pointer to middle + 1 to exclude the left half from the search interval. If the loop exits without finding the target, it means that the target is not present in the array. The function returns -1 in this case.