Please write and explain the coding for the given python pattern(using while loop).

Question

8642
864
86
8

Answer 1

i = 0
n = "8642"
while len(n) != 0:
print(n)
n = n[0: len(n[:-1])]

You proceed the number as a string.
Strings are sliceable.

The orientation is the lenght of the string.

Take the rules of slicing and iterate it until the len of the given string is 0.

Edit:
https://code.sololearn.com/ca1FVvy5qmwW/?ref=app

with comments

Sorry, it is hard to explain for me.

Maby you train slicing, then you will get it.