To subtract numbers in the list Python

Question

To subtract a number from immediate next number in the list.Example we have a list [5,4,3,2]. First it subtract 4-5 equal to -1. Then subtract 3- (-1)"which is result of previous substraction" gives 4 and finally subtract 2-4 that gives -2.

Answer 1

Sounds like a job for functools.reduce to me!

https://www.geeksforgeeks.org/reduce-in-JUMP_LINK__&&__python__&&__JUMP_LINK/

Answer 2

and question is? ;-)