The given code defines two lambda functions, `g` and another...
The given code defines two lambda functions, g
and another unnamed function.
The unnamed function takes a binary string s
, pads a '0' at the beginning to ensure that it has length multiple of 8 (a byte), converts the resulting string to an integer using base-2 (binary) representation, and stores it as a single-element list [int("0"+s,2)]
. It then calls g
with this list and the length of the original string as arguments.
The g
function takes a list l
of integers and an integer n
as input. It first checks if the minimum value in the list is non-zero (i.e., not False or None or 0). If it is zero, the function returns 0.
If the smallest value in l
is non-zero, the function performs the following operations:
- for each index
i
from 1 ton
, and for each indexj
from 0 to2*i-1
, it computes a new integer by flipping thej
-th bit of thei
-th integer inl
. - for each such new integer, it XORs it with
(1 << n+j) / (1 << i+1) % (1 << n)
and appends the result to a new list. - the function then recursively calls itself with the new list and the same value of
n
, incrementing the result by 1 each time, until the minimum value in the new list is zero.
The purpose and output of this code are unclear without additional context.