迭代python中具有相同索引位置的多个列表

Question

I am new to python and I was just trying some list manipulations. I have three lists

A = [10,20,30,40,50,60]
B = [22,44,66,88,12,10]
C = [2,4,6,8,10,20]

I want to iterate over these three lists and for each value of CI want to add half of that value to the corresponding values of A and B. For example for the 1st iteration - half = 2/2= 1 So A = 10 + 1 and B = 22+1 So the final lists should look something like this

A = [11,22,33,44,55,70]
B = [23,46,69,92,17,20]
C = [2,4,6,8,10,20]

Answer 1

As long as the lists all have the same lengths, you can iterate with enumerate() function:

for i, n in enumerate(C):
    A[i] += n/2
    B[i] += n/2

>>> A
[11, 22, 33, 44, 55, 70]
>>> B
[23, 46, 69, 92, 17, 20]

Answer 2

>>> A, B = zip(*((a + c/2, b + c/2) for a, b, c in zip(A, B, C)))

Answer 3

ITs best to use Numpy arrays.

import numpy as np
A, B, C = map(np.array, [A, B, C])
A, B = A - C/2, B - C/2