All the numbers in the nums list don't matter and aren't used. Only the first number, and how many there are. https://docs.python.org/3.8/library/functools.html#functools.reduce
Basically it's doing ADDS(1, 2) which returns 2 that 2 gets fed back into ADDS(2, 3) which returns 3 that 3 gets fed back into ADDS(3, 4) which returns 4 ... ADDS(8, 9) which returns 9 > I have seen this code on one of competative programming site but I didn't get > it, Why output is 9? > > from functools import * > > def ADDS(a,b): > return a+1 > nums = [1, 2, 3, 4, 5, 6, 7, 8, 9] > add = reduce(ADDS, nums) > print(add) > > output: 9 -- https://mail.python.org/mailman/listinfo/python-list
