I need help with the following algorithms problem. If you could please explain it with steps so I can try and actually understand. Any help is appreciated, thank you!

3. What does the following algorithm do (What is the output)? Analyze its worst-case running time, and express it using Big-Oh notation.

Algorithm Foo (A, n):

Input: An array A storing 1 integers.

Output: ??

= [0]

for = 1 to 1 do

if < [] then

= []

return K