Leetcode 191. Number of 1 Bits 🏃🏼‍➡️Classic bit manipulation or Brian 's smart optimization!🚀

In this video, we’ll solve the classic bit manipulation problem: Count how many 1 bits (Hamming Weight) are in a positive integer.
I’ll walk you through 3 different approaches step-by-step:
1️⃣ Naive string conversion – Convert the number to binary and count the 1s.
2️⃣ Bit by bit check – Use bit masking and shifting.
3️⃣ Brian Kernighan’s algorithm – Efficiently turn off the rightmost 1 bit in each step.
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Видео Leetcode 191. Number of 1 Bits 🏃🏼‍➡️Classic bit manipulation or Brian 's smart optimization!🚀 канала LEETCODE SIMPLIFIED