Featured Lists

Top 20 Problems on Dynamic programming

Top 10 Problems on Backtracking

Top 20 Problems on Graph

Top 25 Problems on Trees

Top 10 Problems on Bits Manipulation

Top 15 Problems in LinkedList

All Problems

# Status Problem video Level Completes Likes
470

Find if any two intervals overlap in given intervals

Medium % 0
425

Check if the given binary tree is Full or not

Beginner % 1
354

Valid Multiple Parentheses

Medium % 1
257

Graph – Depth First Traversal

Medium % 2
243

Find two non-repeating numbers in an array in O(n) time and O(1) space

Hard % 1
204

Dynamic Programming - Edit Distance Problem

Hard % 2
177

Tree Traversals

Beginner % 1
144

Introduction To Dynamic Programming - Fibonacci Series

Beginner % 1
134

Diameter Of a Binary Tree

Hard % 1
115

Graph Representation - Adjacency Matrix and Adjacency List

Beginner % 2
94

Depth First Search/Traversal in Binary Tree

Beginner % 0
69

Given a Sorted Singly Linked List Array, Convert it into a Balanced Binary search Tree.

Medium % 1
41

Sorted Array to Binary Search Tree of Minimal Height

Medium % 1
550

Debugging Techniques- How to Efficiently Find and Fix Software Bugs

Medium % 1
546

Converting to Non-Decreasing Array with One Change

Medium % 0
544

Counting the Largest Number Groups by Digit Sum

Medium % 2
543

Adding One to a Number Represented by an Array

Medium % 1
538

Find The Minimum time difference

Medium % 1
533

In an array, Duplicate the zeroes without expanding it

Beginner % 0
519

Random character in a given string - Java

Beginner % 0
514

Sort 0, 1, 2 in an array - Part 2

Beginner % 0
511

Sum of all the overlapping elements

Beginner % 0
508

Get specific row K in a Pascal Triangle

Medium % 0
494

Check if the given playlist of programs is valid

Beginner % 1
471

Two Sum Problem

Beginner % 0
469

Given an array, find the number of all pairs with odd sum.

Medium % 0
466

Lexicographically next permutation With One swap

Medium % 1
459

Given an array, find three-element sum closest to Zero

Medium % 1
435

Hamming Distance between two given integers

Beginner % 1
424

Check if given undirected graph is connected or not

Beginner % 0
421

Sort a given stack - Using Recursion

Hard % 1
413

ZigZag OR Diagonal traversal in 2d array/Matrix using queue

Medium % 0

Find if any two intervals overlap in given intervals

Check if the given binary tree is Full or not

Valid Multiple Parentheses

Graph – Depth First Traversal

Find two non-repeating numbers in an array in O(n) time and O(1) space

Dynamic Programming - Edit Distance Problem

Tree Traversals

Introduction To Dynamic Programming - Fibonacci Series

Diameter Of a Binary Tree

Graph Representation - Adjacency Matrix and Adjacency List

Depth First Search/Traversal in Binary Tree

Given a Sorted Singly Linked List Array, Convert it into a Balanced Binary search Tree.

Sorted Array to Binary Search Tree of Minimal Height

Debugging Techniques- How to Efficiently Find and Fix Software Bugs

Converting to Non-Decreasing Array with One Change

Counting the Largest Number Groups by Digit Sum

Adding One to a Number Represented by an Array

Find The Minimum time difference

In an array, Duplicate the zeroes without expanding it

Random character in a given string - Java

Sort 0, 1, 2 in an array - Part 2

Sum of all the overlapping elements

Get specific row K in a Pascal Triangle

Check if the given playlist of programs is valid

Two Sum Problem

Given an array, find the number of all pairs with odd sum.

Lexicographically next permutation With One swap

Given an array, find three-element sum closest to Zero

Hamming Distance between two given integers

Check if given undirected graph is connected or not

Sort a given stack - Using Recursion

ZigZag OR Diagonal traversal in 2d array/Matrix using queue