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All Problems

# Status Problem video Level Completes Likes
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
65

Given a binary tree, Find the Maximum Path Sum between Any Two Leaves

Medium % 0
62

In a Binary Tree, Check if Two nodes has the same parent or are siblings

Medium % 0
61

In a Binary Tree, Check if two nodes are Cousins

Medium % 0
60

Check if Two BST's are Identical

Beginner % 0
57

Sort an Given Array in 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
54

Find the maximum width of a binary tree

Medium % 0
53

Find the number of occurrences of a number in a given sorted array.

Medium % 0
52

Find all common numbers in given three sorted arrays.

Beginner % 0
51

Level Order Traversal in Zig Zag pattern OR Print in Spiral Pattern

Hard % 0
50

Find the first repeated element in an array by its index

Medium % 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
46

Given two binary trees, check if one binary tree is a subtree of another

Medium % 0
44

Inorder Successor in Binary Tree

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
38

Find whether a Given Binary Tree is Balanced?

Medium % 0
37

Get the Height of a Node in a Binary Tree

Medium % 0
35

Add two numbers represented by a linked list, Numbers are Stored in FORWARD order

Medium % 0
34

Add two numbers represented by a linked list, Numbers are Stored in REVERSE order

Medium % 0
32

Binary Search Tree (BST) Complete Implementation.

Beginner % 0
31

Reverse a Linked List - Part 2

Medium % 0
30

Swap Every Kth Node in a LinkedList

Medium % 0
29

Delete a Node in the Middle of a linked list, Given only access to that Node

Beginner % 0

Given a binary tree, Convert it into its Mirror Tree

Given a binary tree, Print All the Nodes that don't have Siblings.

Given a binary tree, Find the Maximum Path Sum between Any Two Leaves

In a Binary Tree, Check if Two nodes has the same parent or are siblings

In a Binary Tree, Check if two nodes are Cousins

Check if Two BST's are Identical

Sort an Given Array in the order defined by another array

Sort an Array - odd numbers appear first in ascending order followed by the even numbers in descending order.

Find the maximum width of a binary tree

Find the number of occurrences of a number in a given sorted array.

Find all common numbers in given three sorted arrays.

Level Order Traversal in Zig Zag pattern OR Print in Spiral Pattern

Find the first repeated element in an array by its index

Minimum number that cannot be formed by any subset of an array

Find the Size of the Binary Tree

Given two binary trees, check if one binary tree is a subtree of another

Inorder Successor in Binary Tree

In a Binary Tree, Create Linked Lists of all the nodes at each depth.

Level Order Traversal, Print each level in separate line.

Find whether a Given Binary Tree is Balanced?

Get the Height of a Node in a Binary Tree

Add two numbers represented by a linked list, Numbers are Stored in FORWARD order

Add two numbers represented by a linked list, Numbers are Stored in REVERSE order

Binary Search Tree (BST) Complete Implementation.

Reverse a Linked List - Part 2

Swap Every Kth Node in a LinkedList

Delete a Node in the Middle of a linked list, Given only access to that Node