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Longest Substring Without Repeating Characters.java . Leetcode Solution: Understand Leetcode problem Longest Zig Zag Path in a Binary Tree With a Brute Force and Optimal Solution. ... Binary Tree Zigzag Level Order Traversal. Longest ZigZag Path in a Binary Tree - Leetcode. Level up your coding skills and quickly land a job. If we are at any intermediate point along the longest path then from that cell we need to find the longest path to the exit which does not include any of the cells till the current path. Length of the longest ZigZag subarray of the given array Last Updated : 10 Jun, 2020 Given an array arr[] containing n numbers, the task is to find the length of the longest ZigZag subarray such that every element in the subarray should be in form Container With Most Water. The diameter of a binary tree is the length of the longest path between any two nodes in a tree. )Calculate DFS to furthest node. 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