This is interestingly very similar to the Computer Science specific questions on the Oxford Mathematics Admissions Test (MAT). For examples, look at page 16 of

This is interestingly very similar to the Computer Science specific questions on the Oxford Mathematics Admissions Test (MAT). For examples, look at page 16 of the 2013 exam: https://www.maths.ox.ac.uk/system/files/attachments/test13.pdf https://www.maths.ox.ac.uk/system/files/attachments/test13.p... and page 16 of the 2014 exam: https://www.maths.ox.ac.uk/system/files/attachments/test14.pdf https://www.maths.ox.ac.uk/system/files/attachments/test14.p...