Coding Problem : The interview is very strictly time-bound, and you need to implement and explain in the given 40 minutes only. Focus on writing clean, and correct code. Was asked to shorten the code, so that it looks much cleaner Explain your approach while writing the code, as it may happen that you may not get sufficient time in the end. https://leetcode.com/problems/decode-ways/ https://leetcode.com/problems/decode-ways-ii/