Deutsch's

 Started work on IBMQuantumLearn for Algorithms(lesson 5). Got to appreciate

Deutsch's algorithm. 

Classical Computing:

                                                                     

Quantum Computing:

An example query, parity:

Here an either/or only between a contant or balanced function.

                                                                            

Compilation:

https://www.perplexity.ai/search/quantum-computing-can-you-show-.Dd6MDOVTBi43qhd_eRaCw

One just asks for the case one wants. Below, function(4):

                                                      

Function(4) on Quirk: