The daily temperature swing is the difference between the hottest and the coldest reading. Write temperature_swing(temps) that returns highest - lowest. Return 0 if the list is empty.
Examples
Input: temps = [12, 18, 9, 15]
Output: 9
Input: temps = []
Output: 0
Constraints
0 <= len(temps) <= 5000
Goals
- Track both the largest and smallest value in one loop
- Compute the range of a data set