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Solution: Number of Steps to Reduce a Binary Number to One

Explore how to apply a greedy algorithm to reduce a binary number to one by calculating the minimum steps required. This lesson teaches you to evaluate each digit from right to left, deciding optimal operations to minimize steps, and understand the time and space complexity of the solution.

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Statement

You are given a string, str, as a binary representation of an integer. Your task is to return the number of steps needed to reduce it to 11 by following these rules:

  • If the number is even, divide it by 22.

  • If the number is odd, add 11 to it.

You can always reach 1 for all provided test cases.

Constraints:

  • 1<=1 <= str.length <=500<= 500 ...