Arrays & Hashing 49. Group Anagrams 12Input: strs = ["eat","tea","tan","ate","nat","bat"]Output: [["bat"],["nat",&qu

Book Overview Design Data-Intensive Applications by Martin Kleppmann Principle and practicality of Data System Similarity and difference of data systems and their high-level implementations (tradeof

Input/Output To get an input value and put it into variable x, we can use: cin >> x;, where cin is short for characters in. Moreover, we can also get all remaining text on the current input line

Overview backtracking if the current solution is suitable, then add the answer; backtrack (go back) and check for other solutions if the current solution is not suitable, then eliminate that and bac