What are the two output lines?
Python
from functools import reduce
def append_digit(total, digit):
return total * 10 + digit
print(reduce(append_digit, [], 7))
print(reduce(append_digit, [2, 3], 1))
from functools import reduce
def append_digit(total, digit):
return total * 10 + digit
print(reduce(append_digit, [], 7))
print(reduce(append_digit, [2, 3], 1))