How to Solve Number of Steps to Reduce a Number to Zero Problem
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Number of Steps to Reduce a Number to Zero
Given an integer num, return the number of steps to reduce it to zero. In one step, if the current number is even, you have to divide it by 2, otherwise, you have to subtract 1 from it.
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Understanding the Number of Steps to Reduce a Number to Zero Problem
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Problem Statement
Given an integer num, return the number of steps to reduce it to zero. In one step, if the current number is even, you have to divide it by 2, otherwise, you have to subtract 1 from it.
Number of Steps to Reduce a Number to Zero
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Examples
num = 146Step 1) 14 is even; divide by 2 and obtain 7. Step 2) 7 is odd; subtract 1 and obtain 6. Step 3) 6 is even; divide by 2 and obtain 3. Step 4) 3 is odd; subtract 1 and obtain 2. Step 5) 2 is even; divide by 2 and obtain 1. Step 6) 1 is odd; subtract 1 and obtain 0.
num = 84Step 1) 8 is even; divide by 2 and obtain 4. Step 2) 4 is even; divide by 2 and obtain 2. Step 3) 2 is even; divide by 2 and obtain 1. Step 4) 1 is odd; subtract 1 and obtain 0.
num = 12312Constraints
0 <= num <= 106How Interview Coder Helps with Leetcode Problems
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