# Status Problem video Level Completes Likes 152 Breadth-First Search/Traversal in a Graph. Beginner % 1 151 Breadth-First Search/Traversal in a Binary Tree Beginner % 0 150 Sort Names by their Last Names. Beginner % 0 147 Introduction To Backtracking Programming Beginner % 0 146 Dynamic Programming - Stairs Climbing Puzzle Beginner % 1 144 Introduction To Dynamic Programming - Fibonacci Series Beginner % 1 141 Find a Number occurring odd number of times in a Given array Beginner % 1 139 Find a Missing Number From a Sequence of Consecutive Numbers | XOR Method Beginner % 1 138 Find the Max element in a Given Binary Tree Beginner % 0 136 Check If One Binary is Mirror Tree of another Binary Tree. Beginner % 1 130 Print All The Full Nodes in a Binary Tree Beginner % 0 128 Magic Index - Find Index In Sorted Array Such That A[i] = i. Beginner % 0 127 Find numbers that are palindrome in the decimal and octal Representations Beginner % 0 124 Construct a Special Triangle from a Given Array Beginner % 0 122 Goldbach's Conjecture Beginner % 0 120 Convert Decimal into Irreducible Fraction Beginner % 0 119 Clock Angle Problem Beginner % 1 115 Graph Representation - Adjacency Matrix and Adjacency List Beginner % 2 113 Towers Of Hanoi Beginner % 0 111 Find The Missing Duplicate in a Given Array. Beginner % 1 110 Sort 3 Integers without using if condition OR use only Max() function. Beginner % 0 109 Euclidean algorithm - Greatest Common Divisor(GCD) Beginner % 0 103 Delete X Nodes After Y Nodes In a Linked List Beginner % 0 94 Depth First Search/Traversal in Binary Tree Beginner % 0 91 Check if Array is Consecutive Integers Beginner % 0 87 Find intersection between Two Sorted Arrays. Beginner % 0 68 Given a binary tree, Convert it into its Mirror Tree Beginner % 0 67 Given a binary tree, Print All the Nodes that don't have Siblings. Beginner % 0 60 Check if Two BST's are Identical Beginner % 0 52 Find all common numbers in given three sorted arrays. Beginner % 0 49 Minimum number that cannot be formed by any subset of an array Beginner % 0 47 Find the Size of the Binary Tree Beginner % 0 36 Find the Maximum Depth OR Height of a Binary Tree Beginner % 1 32 Binary Search Tree (BST) Complete Implementation. Beginner % 0 29 Delete a Node in the Middle of a linked list, Given only access to that Node Beginner % 0 Breadth-First Search/Traversal in a Graph. Breadth-First Search/Traversal in a Binary Tree Sort Names by their Last Names. Introduction To Backtracking Programming Dynamic Programming - Stairs Climbing Puzzle Introduction To Dynamic Programming - Fibonacci Series Find a Number occurring odd number of times in a Given array Find a Missing Number From a Sequence of Consecutive Numbers | XOR Method Find the Max element in a Given Binary Tree Check If One Binary is Mirror Tree of another Binary Tree. Print All The Full Nodes in a Binary Tree Magic Index - Find Index In Sorted Array Such That A[i] = i. Find numbers that are palindrome in the decimal and octal Representations Construct a Special Triangle from a Given Array Goldbach's Conjecture Convert Decimal into Irreducible Fraction Clock Angle Problem Graph Representation - Adjacency Matrix and Adjacency List Towers Of Hanoi Find The Missing Duplicate in a Given Array. Sort 3 Integers without using if condition OR use only Max() function. Euclidean algorithm - Greatest Common Divisor(GCD) Delete X Nodes After Y Nodes In a Linked List Depth First Search/Traversal in Binary Tree Check if Array is Consecutive Integers Find intersection between Two Sorted Arrays. Given a binary tree, Convert it into its Mirror Tree Given a binary tree, Print All the Nodes that don't have Siblings. Check if Two BST's are Identical Find all common numbers in given three sorted arrays. Minimum number that cannot be formed by any subset of an array Find the Size of the Binary Tree Find the Maximum Depth OR Height of a Binary Tree Binary Search Tree (BST) Complete Implementation. Delete a Node in the Middle of a linked list, Given only access to that Node 1 2 3 4 5 6 7