# Status Problem video Level Completes Likes 83 Find Element in Rotated Sorted Array Medium % 0 82 Find Nodes at Distance X from a Given Node in a Tree Hard % 0 81 Find Nodes X Levels Up from Leaf Nodes in a Tree Medium % 0 80 Find Nodes at Distance X from Root in a Tree Medium % 0 74 Lowest Common Ancestor in a Binary Tree (Not Binary Search Tree). Hard % 0 73 Lowest Common Ancestor in a Binary Search Tree. Medium % 0 69 Convert Sorted Singly Linked List to Balanced Binary Search Tree Medium % 1 65 Given a binary tree, Find the Maximum Path Sum between Any Two Leaves Medium % 0 57 Sort an Array According to the Order Defined by Another Array Medium % 0 56 Sort an Array - odd numbers appear first in ascending order followed by the even numbers in descending order. Medium % 0 51 Print Binary Tree Nodes in Zigzag Order: Spiral Traversal Pattern Hard % 0 50 Find the first repeated element in an array by its index Medium % 0 46 Check if One Binary Tree is a Subtree of Another Medium % 0 40 In a Binary Tree, Create Linked Lists of all the nodes at each depth Hard % 0 39 Level Order Traversal, Print each level in separate line Medium % 0 30 Swap Every Kth Node in a LinkedList Medium % 0 27 Remove Duplicates from an Unsorted Linked list Beginner % 0 25 String Compression using count of repeated characters - Run Length Encoding Beginner % 0 24 Replace Spaces with '%20' Without Using Default Functions Medium % 0 23 Find Whether Two Strings are Permutation of each other Beginner % 1 Find Element in Rotated Sorted Array Find Nodes at Distance X from a Given Node in a Tree Find Nodes X Levels Up from Leaf Nodes in a Tree Find Nodes at Distance X from Root in a Tree Lowest Common Ancestor in a Binary Tree (Not Binary Search Tree). Lowest Common Ancestor in a Binary Search Tree. Convert Sorted Singly Linked List to Balanced Binary Search Tree Given a binary tree, Find the Maximum Path Sum between Any Two Leaves Sort an Array According to the Order Defined by Another Array Sort an Array - odd numbers appear first in ascending order followed by the even numbers in descending order. Print Binary Tree Nodes in Zigzag Order: Spiral Traversal Pattern Find the first repeated element in an array by its index Check if One Binary Tree is a Subtree of Another In a Binary Tree, Create Linked Lists of all the nodes at each depth Level Order Traversal, Print each level in separate line Swap Every Kth Node in a LinkedList Remove Duplicates from an Unsorted Linked list String Compression using count of repeated characters - Run Length Encoding Replace Spaces with '%20' Without Using Default Functions Find Whether Two Strings are Permutation of each other 1 2 3 4 5 6 7 8
