Find Min

In this problem you'll need a way to represent the largest possible number: infinity. In Python, you can use this constant to represent positive infinity:

my_infinity = float("inf")

Assignment

Write a function called find_min() that finds the smallest number in a list. For example:

find_min([1, 3, -1, 2]) -> -1
find_min([18, 3, 7, 2]) -> 2

Do not use the built-in min() function.

Tips

Create a variable to store the "smallest number so far". Start with float("inf") (which is the largest possible number).
Iterate over the numbers in the list.
- If the current number is less than the "smallest number so far", update the "smallest number so far" to the current number.
Return the "smallest number so far" after the loop completes.