Dynamic Programming pattern

Counting Bits

Given an integer n, return an array of length n+1 where each entry i holds the number of set bits (1s) in the binary representation of i. Watch it run step by step, then write your own pseudocode and get it checked by AI.

  • LeetCode 338
  • Easy
  • 1 approach

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Dynamic ProgrammingLeetCode 338

Easy

The approach

  1. 01 DP on the last bit O(n)O(n) space
Played step by step, with its time and space.

What you will learn

  • How to read Counting Bits and spot the dynamic programming pattern in it
  • DP on the last bit: O(n) time, O(n) space
  • The pseudocode for each approach, its line lit as the animation runs
  • Practice: write your own pseudocode and get it checked

More Dynamic Programming

See Counting Bits run, step by step

Sign in and this page opens on the animation, with all 18 Dynamic Programming problems beside it.

DSA comes with the all labs plan and every ChaiCode batch.