Feb 10 · 29 min read · Part 1: Encoding and Decoding What is Encoding? Encoding is the process of converting data from one format to another. It's about representation, not security. Think of it like translation: you're changing the language, but the message is still reada...
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Jul 13, 2025 · 5 min read · Problem Description LeetCode 204 Count Primes Given an integer n, return the number of prime numbers that are less than n. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. For example, if n = ...
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Jul 13, 2025 · 2 min read · Problem Overview LeetCode 264 Ugly Number II An ugly number is a positive integer whose prime factors are limited to 2, 3, and 5. The sequence starts: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12... Solution 1: Dynamic Programming with Three Pointers (Recommende...
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Apr 11, 2025 · 2 min read · Remember when home automation felt like something straight out of a sci-fi movie? Well, those days are long gone! Smart devices have gone mainstream, and they're changing the way we live, sometimes in ways we might not even realize. Here's a peek ...
Join discussionJun 17, 2023 · 1 min read · Write a Python program to check whether a given number is a prime number or not:- num = int(input("Enter a number: ")) result = "" i = 2 while i * i <= num: if num % i == 0: result = "not " break i += 1 if num < 2 or result...
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Jan 16, 2023 · 2 min read · Prime numbers have captivated mathematicians for centuries. They’re so simple yet so important—they’re used in cryptography, coding, computer science, and much more. In this blog post, we’ll explore what prime numbers are, why they’re important, and ...
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