Practice_01

⚔️ Phase 01_Practice: The Logic Gauntlet 🧩

"Simulation active. Testing pure computational logic, control flows, and algorithmic endurance before hardware integration."

Before touching physical pins or reading sensor voltages, the core software engine must be flawless. This module contains pure logic challenges designed to stress-test your understanding of variables, mathematical/logical operators, conditionals, and loop controls.

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🎯 THE CHALLENGES

Create a new file for each challenge in your IDE and execute them in the terminal. No hardware required.

Challenge 01: The FizzBuzz Matrix

Objective: Master the modulo operator (%), for loops, and if-elif-else chains.

Task: Write a script that loops through the numbers 1 to 50.

• If the number is perfectly divisible by 3, print "Fizz".
• If the number is perfectly divisible by 5, print "Buzz".
• If the number is divisible by BOTH 3 and 5, print "FizzBuzz".
• Otherwise, just print the number itself.

Challenge 02: The Prime Hunter

Objective: Utilize nested loops, arithmetic operators, and the break statement to optimize execution.

Task: Write a program that finds and prints all prime numbers between 1 and 100.

• Hint: A prime number is only divisible by 1 and itself. Use a for loop inside another for loop to test for factors. If a factor is found, use break to shatter the inner loop early and save CPU cycles.

Challenge 03: The Data Sanitizer

Objective: Practice while loops, the continue statement, and logical operators (and/or).

Task: You are given a raw list of integers: raw_data = [15, -4, 0, 42, 999, 8, -1] Write a while loop to process this list item by item until it is empty (using .pop(0)).

• If the number is negative or exactly 0, use continue to skip the rest of the loop and move to the next iteration without printing anything.
• If the number is 999 (simulating a fatal system error), print "SYSTEM HALT" and use break to escape the loop entirely.
• Otherwise, print "Valid entry: [number]".

Challenge 04: The Terminal Password Validator

Objective: Combine string traversal, boolean flags, and complex logical conditions.

Task: Create a variable: password = "Secure9X" Write a script that verifies if the password meets the following strict criteria:

1. It must be at least 8 characters long (use the len() function).
2. It must contain at least one numeric digit.

• Hint: Set a boolean flag has_number = False. Loop through each character in the string. If a character is a digit (you can check this using "0" <= char <= "9"), flip the flag to True. Finally, use a master if statement with the and operator to evaluate both conditions and print "ACCESS GRANTED" or "ACCESS DENIED".

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🧠 RULES OF ENGAGEMENT

• Do not use built-in external Python libraries to solve these. Rely entirely on your raw loops, operators, and conditionals.
• Keep your code clean, indent properly, and use descriptive variable names.