Def sum(a,b): If a==0 or b==0: Return 0: Return 1+sum(a-1,b-1): Print (sum(4,2))

Question

From python

Answer 1

Don't add colon (:) for return statements.

Answer 2

I took your code and tried to understand the logic of if. Here is a reworked version:

def sum_(a,b):
if a==0 or b==0:
return 0
else:
return 1+sum_(a-1,b-1)

print(sum_(4,2))

Please compare it with your code to find the amendments.
Colonel Cop, I would recommend you to go through the python tutorial to get the basics. It' really worth to work on it.

Answer 3

Ok - so what is your question, or how can we help you?

[ Edited]: There should no python function names and so on be used as identifiers. This can cause unexpected errors or results.
Also indentation should be done properly.

Answer 4

This is my question on Python 3

Answer 5

Then please explain step wise for that reworked version

Answer 6

Please

Answer 7

Col. Any experience on recursion? Calling a function within itself? If not, let me tell you that you're using recursion here.

Answer 8

No

Answer 9

Experience

Answer 10

Def sum(a,b):
If a==0 or b==0:
Return 0:
Return 1+sum(a-1,b-1):
Print (sum(4,2))