# leetle

## 33. Number of Steps to Reduce to Zero

Write a function `solve` that returns the number of steps to reduce a non-negative integer to zero. If it's even, divide by 2; if it's odd, subtract 1. **Example:** `Input: 14` `Output: 6` `Explanation: 14 -> 7 -> 6 -> 3 -> 2 -> 1 -> 0`

Make sure you `return` your solution, don't print!

```python

def solve(num):
    pass
```