Solution Link: https://leetcode.com/problems/complement-of-base-10-integer/solutions/7649445/1009-complement-of-base-10-integer-by-47-3o3k
In this video, we solve LeetCode 1009 – Complement of Base 10 Integer.
The problem asks us to flip all bits in the binary representation of a number to find its complement. Instead of converting numbers to binary strings, we solve the problem efficiently using bit manipulation.
In this tutorial, we explain the intuition behind bit complements, create a proper bit mask using the number’s bit length, and use the XOR operation to flip all bits in constant time.
The video includes a step-by-step explanation, example walkthroughs, and analysis of time and space complexity.
This is a great problem to understand bitwise operations and binary manipulation, which are commonly asked in coding interviews and competitive programming.
