1. Given the following vectors (arbitrary numbers), design a more memory-efficient representation of these vectors.\n2. https://leetcode.com/problems/merge-two-sorted-lists/description/\n3. Search a string in TRIE DS where search string can have "." and "*". For example: "aB.c*Z"\n4. System Design: Design botnet

Given the following vectors (arbitrary numbers), design a more memory-efficient representation of these vectors.\n2. https://leetcode.com/problems/merge-two-sor