Sold CS Algorithms test today - help me solve Recursion, Hashing, Stacks and queues! BTC$$

Hi,
I have a test TODAY in 12 hour window. I have someone who is good at recursion but I need to do 4 questions in 3 hours, if you are good at any of these things send me a PM with your discord! I WILL MAKE YOUR TIME WORTH IT ESPECIALLY IF YOUR ANSWER COMPILES!!!

Recursion, Hashing, Stacks and queues! BTC Paypal Venmo ETC

Recursion
- be able to go from iterative code to recursive code
- trace recursive code
- given an algorithm write the recursive version of that
algorithm
- permutation, combination, all subsets, memoization,
and back tracking

algorithms on
sorting, searching (linear and binary), merging, and hashing.

Know how to use the Stack and Queue data structures.
You could be given a problem that determines if the parentheses,
brackets, and curly braces are well balanced.


IF YOU FEEL QUALIFIED PM ME ASAP you can pick which question you can do!
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