Lexicographical Numbers : Beauty of DFS

Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. See the beauty of DFS Solution import java.util.*; public class Main { public static void main(String args[]) { // Your Code Here … Continue reading Lexicographical Numbers : Beauty of DFS