# Status Problem video Level Completes Likes 85 Find Maximum Distance Between Increasing Elements in Array Medium % 0 84 Elements in an Array Occurring More Than N/K Times Hard % 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 79 Calculate Distance Between Nodes in a Binary Tree Hard % 0 77 Construct a binary tree from given Inorder and Postorder Traversal Hard % 0 76 Calculate Vertical Sum in Binary Tree Medium % 0 75 Print the Binary Tree in Vertical Order Path 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 71 Given a binary tree, find out the maximum sum of value from root to each leaf Medium % 0 70 Reversing Alternate Levels in a Binary Tree Medium % 0 65 Given a binary tree, Find the Maximum Path Sum between Any Two Leaves Medium % 0 64 Print Left View of binary tree Medium % 0 61 Determine If Two Nodes are Cousins Medium % 0 60 Determine if Two BSTs are Identical Beginner % 0 59 Print All Root-to-Leaf Paths in a Binary Tree Medium % 0 57 Sort an Array According to the Order Defined by Another Array Medium % 0 54 Maximum Width of a Binary Tree Medium % 0 Find Maximum Distance Between Increasing Elements in Array Elements in an Array Occurring More Than N/K Times 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 Calculate Distance Between Nodes in a Binary Tree Construct a binary tree from given Inorder and Postorder Traversal Calculate Vertical Sum in Binary Tree Print the Binary Tree in Vertical Order Path Lowest Common Ancestor in a Binary Tree (Not Binary Search Tree). Lowest Common Ancestor in a Binary Search Tree. Given a binary tree, find out the maximum sum of value from root to each leaf Reversing Alternate Levels in a Binary Tree Given a binary tree, Find the Maximum Path Sum between Any Two Leaves Print Left View of binary tree Determine If Two Nodes are Cousins Determine if Two BSTs are Identical Print All Root-to-Leaf Paths in a Binary Tree Sort an Array According to the Order Defined by Another Array Maximum Width of a Binary Tree 1 2 3 4 5 6 7 8 9 10 11 12