Home - Algorithms

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All Problems

#	Problem	Level	Completes	Likes
491	Print All Nodes Between Two Given Levels	Medium	%	0
492	Find the maximum width of a binary tree	Medium	%	0
493	Find the number of occurrences of a number in a given sorted array.	Medium	%	0
494	Find all common numbers in given three sorted arrays.	Beginner	%	0
495	Level Order Traversal in Zig Zag pattern OR Print in Spiral Pattern	Hard	%	0
496	Find the first repeated element in an array by its index	Medium	%	0
497	Minimum number that cannot be formed by any subset of an array	Beginner	%	0
498	Determine whether given binary tree is binary search tree(BST) or not	Medium	%	1
499	Find the Size of the Binary Tree	Beginner	%	0
500	Given two binary trees, check if one binary tree is a subtree of another	Medium	%	0
501	Print a path from Root to Node in Binary Tree	Medium	%	0
502	Inorder Successor in Binary Tree	Medium	%	0
503	Inorder Successor in Binary Search Tree without Using Parent link	Hard	%	0
504	Inorder Successor in Binary Search Tree Using Parent link	Hard	%	0
505	Sorted Array to Binary Search Tree of Minimal Height	Medium	%	1
506	In a Binary Tree, Create Linked Lists of all the nodes at each depth.	Hard	%	0
507	Level Order Traversal, Print each level in separate line.	Medium	%	0
508	Find whether a Given Binary Tree is Balanced?	Medium	%	0
509	Get the Height of a Node in a Binary Tree	Medium	%	0
510	Find the Maximum Depth OR Height of a Binary Tree	Beginner	%	1
511	Add two numbers represented by a linked list, Numbers are Stored in FORWARD order	Medium	%	0
512	Add two numbers represented by a linked list, Numbers are Stored in REVERSE order	Medium	%	0
513	Reverse the binary representation of a number.	Medium	%	1
514	Binary Search Tree (BST) Complete Implementation.	Beginner	%	0
515	Reverse a Linked List - Part 2	Medium	%	0
516	Swap Every Kth Node in a LinkedList	Medium	%	0
517	Delete a Node in the Middle of a linked list, Given only access to that Node	Beginner	%	0
518	Find the n'th Node from the end of a given Linked List	Beginner	%	0
519	Remove Duplicates from an Unsorted Linked list	Beginner	%	0
520	Check if one string is Rotation of another string	Beginner	%	1
521	String Compression using count of repeated characters - Run Length Encoding	Beginner	%	0
522	Replace all spaces in a String with '%20'	Medium	%	0
523	Find Whether Two Strings are Permutation of each other	Beginner	%	1
524	Find Intersection Point in Two Linked List	Medium	%	0
525	Find the Loop in a Linked list, find its length and Break the Loop	Medium	%	0