Clone Graph Blind75 LeetCode Problem

This story was originally published on HackerNoon at: https://hackernoon.com/clone-graph-blind75-leetcode-problem. Clone Graph Blind75 LeetCode Problem Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #java, #data-structures, #leetcode, #algorithms, #dfs, #programming, #graph, #blind75, #hackernoon-es, and more. This story was written by: @rakhmedovrs. Learn more about this writer by checking @rakhmedovrs's about page, and for more stories, please visit hackernoon.com. Task description: Given a reference of a node in a connected(https://en.wikipedia.org/wiki/Connectivity)Connected_graph) Return a deep copy of the graph. Each node in the graph contains a value (`int`) and a list (`ListNode`) of its neighbors. The graph is represented in the test case using an adjacency list. The given node will always be the first node with `val = 1` You must return the copy of a given node as a reference to the cloned graph.