# Status Problem video Level Completes Likes 213 Find the last repeating character in a given string Beginner % 0 212 Find the first non repeating character in a given string Beginner % 0 211 Find the first repeating character in a given string Beginner % 0 206 Reverse the given Array without using built in function Beginner % 0 193 Implement Stack Using Linked List Beginner % 0 192 Doubly Linked List Complete Implementation Beginner % 0 191 Circular Linked List Complete Implementation Beginner % 0 184 Get the Sum of all left leaves in a Binary tree Beginner % 1 182 Binary Tree-Postorder Traversal - Non Recursive Approach Beginner % 0 181 Binary Tree - Preorder Traversal - Non Recursive Approach Beginner % 0 180 Binary Tree-Inorder Traversal - Non Recursive Approach Beginner % 0 179 Binary Tree Deletion Beginner % 0 178 Search the Element in a binary tree - With and Without Recursion Beginner % 0 177 Tree Traversals Beginner % 1 176 Find the Size of a Binary Tree without Recursion Beginner % 0 155 Find the Kth Smallest/Largest Element in an Array Using Heap Beginner % 0 154 Priority Queue in Data Structure Beginner % 0 153 Find the Second Largest Element in an Array Beginner % 1 152 Breadth-First Search/Traversal in a Graph Beginner % 1 151 Breadth-First Search/Traversal in a Binary Tree Beginner % 0 Find the last repeating character in a given string Find the first non repeating character in a given string Find the first repeating character in a given string Reverse the given Array without using built in function Implement Stack Using Linked List Doubly Linked List Complete Implementation Circular Linked List Complete Implementation Get the Sum of all left leaves in a Binary tree Binary Tree-Postorder Traversal - Non Recursive Approach Binary Tree - Preorder Traversal - Non Recursive Approach Binary Tree-Inorder Traversal - Non Recursive Approach Binary Tree Deletion Search the Element in a binary tree - With and Without Recursion Tree Traversals Find the Size of a Binary Tree without Recursion Find the Kth Smallest/Largest Element in an Array Using Heap Priority Queue in Data Structure Find the Second Largest Element in an Array Breadth-First Search/Traversal in a Graph Breadth-First Search/Traversal in a Binary Tree 1 2 3 4 5 6 7 8 9 10 11 12
