Learn how to solve the Leetcode problem of id 338, whose title is Counting Bits, using the Java programming language.

https://leetcode.com/problems/counting-bits

The Data Structures and Algorithms (DSA) lesson uses an iterative approach.

Create an array of integers to store the counts.

Make a loop and assign the value to the element of counts at the position index.

If the index is odd, the count is the previous index count plus one.

If the index is even, the binary number ends in a zero, so you can discard that zero and it wouldn't make a difference. That means you can shift right and look at the count for that number that is a result of the shifting operation.

The time complexity for the solution is O(n) and its space complexity is O(n).

DSA problems are sometimes asked during tech job interviews for positions such as Software Engineer, so you can use the challenge to practice that skill.