Reverse Number Without Strings | Dataford Interview Questions

Write a program to reverse a number without using string functions.

Implement reverse_number(num), which accepts an integer and returns its digits in reverse order as an integer. Preserve the sign for negative inputs and return 0 when the input is 0 or contains only zeros after reversal. Do not convert the number to a string or use string-processing operations.

Constraints

num is an integer
-10^18 <= num <= 10^18
Do not convert num to a string
The output is an integer

Function Signature

def reverse_number(num):

Your question is Reverse Number Without Strings. Start with the requirements in the Question tab.

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Problem

Write a program to reverse a number without using string functions.

Constraints

num is an integer
-10^18 <= num <= 10^18
Do not convert num to a string
The output is an integer

Function Signature

def reverse_number(num):

Your question is Reverse Number Without Strings. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.