What does this code?

[Elvin]

Hello,


What does is this code doing?

def what(n):
 if n<10:
    return n
 else:
    k = what((n//100)*10 + n%10)
    return (k*10 + (n%100) // 10)

thank you.

Yoriz write May-22-2021, 08:38 PM:
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[Gribouillis]

What have you tried? Running the function for a large number of n's may help guess what it does.

[Elvin]

What have you tried? Running the function for a large number of n's may help guess what it does.

Just need to explain what the action that the function doing

[Gribouillis]

It doesn't do anything until you run it. It is much easier to run it than to guess what it does by scrutinizing the code.

[naughtyCat]

> loop: refers to the repeated execution of the same piece of code when the conditions are met. eg. the while statement

> iterate: refers to visiting each item in the list one by one in a certain order. eg. the for statement.

> traversal: refers to visiting each node in the tree structure according to certain rules, and each node is only visited once. Time complexity: O(n)

> recursive: refers to the behavior of a function constantly calling itself. Time complexity: O(2^n)
for example:

def Fibonacci(n):
    if n == 0:
        return 0;
    elif n == 1:
        return 1;
    return Fibonacci(n-1) + Fibonacci(n-2) # calling function itself