Problems

# Status Problem Level Completes Likes
491

Find all common numbers in given three sorted arrays.

Beginner % 0
492

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

Hard % 0
493

Find the first repeated element in an array by its index

Medium % 0
494

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

Beginner % 0
495

Determine whether given binary tree is binary search tree(BST) or not

Medium % 0
496

Find the Size of the Binary Tree

Beginner % 0
497

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

Medium % 1
499

Inorder Successor in Binary Tree

Medium % 0
502

Sorted Array to Binary Search Tree of Minimal Height

Medium % 0
503

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

Hard % 0
504

Level Order Traversal, Print each level in separate line.

Medium % 0
505

Find whether a Given Binary Tree is Balanced?

Medium % 0
506

Get the Height of a Node in a Binary Tree

Medium % 0
507

Find the Maximum Depth OR Height of a Binary Tree

Beginner % 0
508

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

Medium % 0
509

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

Medium % 0
510

Reverse the binary representation of a number.

Medium % 0
511

Binary Search Tree (BST) Complete Implementation.

Beginner % 0
512

Reverse a Linked List - Part 2

Beginner % 0
513

Swap Every Kth Node in a LinkedList

Medium % 0
514

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

Beginner % 0
515

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

Beginner % 0
516

Remove Duplicates from an Unsorted Linked list

Beginner % 0
517

Check if one string is Rotation of another string

Beginner % 0
518

String Compression using count of repeated characters - Run Length Encoding

Beginner % 0
519

Replace all spaces in a String with '%20'

Medium % 0
520

Find Whether Two Strings are Permutation of each other

Beginner % 1
521

Find Intersection Point in Two Linked List

Medium % 0
522

Find the Loop in a Linked list, find its length and Break the Loop

Medium % 0
523

Reverse a Linked List

Beginner % 0
524

Count All Paths from Top left to bottom right in Two Dimensional Array including Diagonal Paths

Medium % 0

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

Determine whether given binary tree is binary search tree(BST) or not

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

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?

Get the Height of a Node in a Binary Tree

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 the binary representation of a number.

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

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

Remove Duplicates from an Unsorted Linked list

Check if one string is Rotation of another string

String Compression using count of repeated characters - Run Length Encoding

Replace all spaces in a String with '%20'

Find Whether Two Strings are Permutation of each other

Find Intersection Point in Two Linked List

Find the Loop in a Linked list, find its length and Break the Loop

Reverse a Linked List

Count All Paths from Top left to bottom right in Two Dimensional Array including Diagonal Paths