# Status Problem video Level Completes Likes
101

Merge a Linked list into another Linked List at Alternate Positions.

Medium % 0
99

Construct a binary tree from given Inorder and Level Order Traversal

Hard % 0
98

Construct Binary Search Tree from a given Preorder Traversal Using Stack (Without Recursion)

Hard % 0
97

Construct Binary Search Tree from a given Preorder Traversal using Recursion

Hard % 0
93

Inorder Predecessor and Successor in Binary Search Tree

Hard % 0
92

Check if Array Contains All Elements Of Some Given Range

Medium % 0
91

Check if Array is Consecutive Integers

Beginner % 0
90

Find the subarray with sum to a Given Value.

Medium % 0
88

Rearrange Positive and Negative Elements at Alternate Positions in an Array In O(1) Extra Space

Hard % 0
87

Find intersection between Two Sorted Arrays.

Beginner % 0
85

Given an array arrA[], find the maximum j – i such that arr[j] > arr[i].

Medium % 0
84

Find All Elements in an Array which appears more than N/K times, N is Array Size and k is a Number.

Hard % 0
79

Find the Distance between Two Nodes of a Binary Tree.

Hard % 0
78

Find The Distance From Root To Given Node of a Binary Tree.

Medium % 0
44

Inorder Successor in Binary Tree

Medium % 0
41

Sorted Array to Binary Search Tree of Minimal Height

Medium % 1
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
36

Find the Maximum Depth OR Height of a Binary Tree

Beginner % 1
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
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
28

Find the n'th Node from the end of a given Linked List

Beginner % 0
27

Remove Duplicates from an Unsorted Linked list

Beginner % 0

Merge a Linked list into another Linked List at Alternate Positions.

Construct a binary tree from given Inorder and Level Order Traversal

Construct Binary Search Tree from a given Preorder Traversal Using Stack (Without Recursion)

Construct Binary Search Tree from a given Preorder Traversal using Recursion

Inorder Predecessor and Successor in Binary Search Tree

Check if Array Contains All Elements Of Some Given Range

Check if Array is Consecutive Integers

Find the subarray with sum to a Given Value.

Rearrange Positive and Negative Elements at Alternate Positions in an Array In O(1) Extra Space

Find intersection between Two Sorted Arrays.

Given an array arrA[], find the maximum j – i such that arr[j] > arr[i].

Find All Elements in an Array which appears more than N/K times, N is Array Size and k is a Number.

Find the Distance between Two Nodes of a Binary Tree.

Find The Distance From Root To Given Node of a Binary Tree.

Inorder Successor in Binary Tree

Sorted Array to Binary Search Tree of Minimal Height

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?

Find the Maximum Depth OR Height of 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

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

Find the n'th Node from the end of a given Linked List

Remove Duplicates from an Unsorted Linked list