Several equivalent circuits for summing the Python list

Ask for 1-100 and:

Method One: Use Python's own sum function

L= Range (1,101)
Print (sum (L)) #5050

Method Two:

From functools import reduce #python2可以直接使用reduce, Python3 need to import reduce from Functools

L = Range (1,101)
def f (x, Y):

Return X+y

sum = reduce (f,l)

Print (sum) #5050

Method Three:

L = Range (1,101)
sum = 0
n = Len (L)-1
While n >= 0:
Sum+=l[n]
n = n-1
Print (sum)#5050

Is there any other way I can think about ...

Several equivalent circuits for summing the Python list