# Status Problem Level Completes Likes 176 Breadth-First Search/Traversal in a Graph. Beginner % 1 177 Breadth-First Search/Traversal in a Binary Tree Beginner % 0 178 Sort Names by their Last Names. Beginner % 0 179 Introduction To Backtracking Programming Beginner % 0 180 Dynamic Programming - Stairs Climbing Puzzle Beginner % 1 181 Introduction To Dynamic Programming - Fibonacci Series Beginner % 1 182 Find a Number occurring odd number of times in a Given array Beginner % 1 183 Find a Missing Number From a Sequence of Consecutive Numbers | XOR Method Beginner % 1 184 Find the Max element in a Given Binary Tree Beginner % 0 185 Check If One Binary is Mirror Tree of another Binary Tree. Beginner % 1 186 Print All The Full Nodes in a Binary Tree Beginner % 0 187 Magic Index - Find Index In Sorted Array Such That A[i] = i. Beginner % 0 188 Find numbers that are palindrome in the decimal and octal Representations Beginner % 0 189 Construct a Special Triangle from a Given Array Beginner % 0 190 Goldbach's Conjecture Beginner % 0 191 Convert Decimal into Irreducible Fraction Beginner % 0 192 Clock Angle Problem Beginner % 1 193 Graph Representation - Adjacency Matrix and Adjacency List Beginner % 2 194 Towers Of Hanoi Beginner % 0 195 Find The Missing Duplicate in a Given Array. Beginner % 1 196 Sort 3 Integers without using if condition OR use only Max() function. Beginner % 0 197 Euclidean algorithm - Greatest Common Divisor(GCD) Beginner % 0 198 Delete X Nodes After Y Nodes In a Linked List Beginner % 0 199 Depth First Search/Traversal in Binary Tree Beginner % 0 200 Check if Array is Consecutive Integers Beginner % 0 201 Find intersection between Two Sorted Arrays. Beginner % 0 202 Given a binary tree, Convert it into its Mirror Tree Beginner % 0 203 Given a binary tree, Print All the Nodes that don't have Siblings. Beginner % 0 204 Check if Two BST's are Identical Beginner % 0 205 Find all common numbers in given three sorted arrays. Beginner % 0 206 Minimum number that cannot be formed by any subset of an array Beginner % 0 207 Find the Size of the Binary Tree Beginner % 0 208 Find the Maximum Depth OR Height of a Binary Tree Beginner % 1 209 Binary Search Tree (BST) Complete Implementation. Beginner % 0 210 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