Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns

Solution: Base 7

Explore how to convert an integer into its base 7 string representation by using repeated division and remainder collection. Understand handling of signs, zero cases, and the algorithm's time and space complexity for effective coding interview preparation.

We'll cover the following...

Statement

Given an integer num, return a string representing its base 77 equivalent.

Constraints:

  • −107≤-10^7 \leq num ≤107\leq 10^7

Solution

The core idea behind this problem is standard base conversion using repeated division. To convert a decimal integer to its base 77 representation, we repeatedly divide the number by 7 ...