[unishark]

Here are things I have had CS grads demonstrate an inability to do within an hour or more timeframe:

Make a loop that sums up numbers in an array.

Write an algorithm that sorts a list of three numbers. I watched students spend an hour making a bunch of if statements to try and cover all cases... ultimately getting it wrong.

Compute the accuracy by computing the number of matches between two lists and dividing between the length.

Split a list into two lists.

Generally the failure mode is to find something vaguely near the task, but overly-sophisticated from google. Then wrestle with trying to hack it into working by frantically scouring stackoverflow etc for their next code adjustment.