Counting Bits
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What is Counting Bits?
Given an integer n, return an array where each element is the number of 1 bits in its binary representation from 0 to n. You can use DP: the number of bits in i equals one plus the bits in i with its lowest set bit removed. This problem teaches you to combine bit manipulation with DP to avoid recomputing from scratch for each number.
Free resources to learn Counting Bits
More in stage 20: Bit Manipulation
Counting Bits: common questions
Can I learn Counting Bits in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Counting Bits in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Counting Bits tutorial for beginners?
It is lesson 127 of 137 in the free LeetCode roadmap, in stage 20, Bit Manipulation. If you are new to LeetCode, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.