Companies

also at 0 more

3

3.Two sum in BST

Medium10 co.

Medium

Binary Search Trees

also at 9 more

4

4.Permutations

Medium14 co.

Medium

Recursion & Backtracking

also at 13 more

5

5.Move Zeros to End

Easy31 co.

Easy

also at 30 more

6

6.Edit distance

Medium24 co.

Medium

8.Make Sum Divisible by P

also at 23 more

7

7.Word Search

Medium27 co.

Medium

Recursion & Backtracking

also at 26 more

8

Medium2 co.

Medium

also at 1 more

9

9.Merge K sorted Lists

Medium33 co.

Medium

Linked List Heaps

also at 32 more

10

10.3 Sum

Medium42 co.

Medium

11.Find the intersection point of Y LL

also at 41 more

11

Medium17 co.

Medium

Linked List

also at 16 more

12

12.Stone Game IX

Medium1 co.

Medium

13.Number of Nodes in the Sub-Tree With the Same Label

also at 0 more

13

Medium2 co.

Medium

Binary Trees

also at 1 more

14

14.Generate Parentheses

Medium32 co.

Medium

Recursion & Backtracking

also at 31 more

15

15.IPO

Hard3 co.

Hard

16.Sort an array of 0's 1's and 2's

also at 2 more

16

Medium32 co.

Medium

Sorting

also at 31 more

17

17.Merge two sorted arrays without extra space

Medium33 co.

Medium

18.Longest Increasing Subsequence

also at 32 more

18

Medium28 co.

Medium

Binary Search Dynamic Programming

also at 27 more

19

19.Longest Palindromic Substring

Medium40 co.

Medium

Strings Dynamic Programming

also at 39 more

20

20.Design Graph With Shortest Path Calculator

Hard1 co.

Hard

21.Partition Array Into Two Arrays to Minimize Sum Difference

also at 0 more

21

Hard4 co.

Hard

22.Maximum Height by Stacking Cuboids

also at 3 more

22

Hard2 co.

Hard

23.Minimum Cost of a Path With Special Roads

also at 1 more

23

Medium1 co.

Medium

24.Minimize Deviation in Array

also at 0 more

24

Hard1 co.

Hard

25.Median of 2 sorted arrays

also at 0 more

25

Hard34 co.

Hard

Binary Search

also at 33 more

26

26.Number of islands

Medium48 co.

Medium

27.Substring with Concatenation of All Words

also at 47 more

27

Hard6 co.

Hard

Strings

also at 5 more

28

28.Possible Bipartition

Medium6 co.

Medium

29.Valid Paranthesis Checker

also at 5 more

29

Medium50 co.

Medium

also at 49 more

30

30.Word ladder I

Medium27 co.

Medium

Hashing Graphs

also at 26 more

31

31.Burst Balloons

Hard11 co.

Hard

32.Mark Elements on Array by Performing Queries

also at 10 more

32

Medium1 co.

Medium

33.Minimum Number of Operations to Make String Sorted

also at 0 more

33

Hard1 co.

Hard

Hashing

also at 0 more

34

34.Find the Width of Columns of a Grid

Easy1 co.

Easy

Matrix

also at 0 more

35

35.Rotten Oranges

Medium39 co.

Medium

Arrays Graphs

also at 38 more

36

36.Jump Game II

Medium18 co.

Medium

37.Best time to buy and sell stock

also at 17 more

37

Medium45 co.

Medium

38.Vertical Order Traversal

also at 44 more

38

Medium12 co.

Medium

Binary Trees

also at 11 more

39

39.Maximum Product of Two Elements in an Array

Easy3 co.

Easy

40.Find Maximum Value in a Constrained Sequence

also at 2 more

40

Medium1 co.

Medium

also at 0 more

41

41.Bipartite graph

Medium11 co.

Medium

42.Number of Paths with Max Score

also at 10 more

42

Hard3 co.

Hard

43.Divide two numbers without multiplication and division

also at 2 more

43

Medium7 co.

Medium

Bit Manipulation

also at 6 more

44

44.LRU Cache

Medium52 co.

Medium

Hashing Linked List

also at 51 more

45

45.Split array - largest sum

Medium23 co.

Medium

Binary Search Dynamic Programming

also at 22 more

46

46.Trapping Rainwater

Medium48 co.

Medium

Stack & Queues

also at 47 more

47

47.Merge Intervals

Medium51 co.

Medium

48.Search in rotated sorted array-I

also at 50 more

48

Medium34 co.

Medium

Binary Search

also at 33 more

49

49.Subarray Product Less Than K

Medium10 co.

Medium

Binary Search

also at 9 more

50

50.Check if There is a Valid Path in a Grid

Medium1 co.

Medium