Companies

also at 15 more

2

2.Koko eating bananas

Medium33 co.

Medium

also at 32 more

3

3.House robber

Medium33 co.

Medium

4.Maximum Area of Longest Diagonal Rectangle

also at 32 more

4

Easy1 co.

Easy

also at 0 more

5

5.Rotate String

Easy6 co.

Easy

also at 5 more

6

6.Detect a loop in LL

Medium21 co.

Medium

Linked List

also at 20 more

7

7.Contains Duplicate

Easy15 co.

Easy

8.Sort Array by Increasing Frequency

also at 14 more

8

Easy4 co.

Easy

9.Largest rectangle in a histogram

also at 3 more

9

Hard30 co.

Hard

Stack & Queues

also at 29 more

10

10.Find peak element

Medium28 co.

Medium

11.Product of Array Except Self

also at 27 more

11

Medium19 co.

Medium

12.Squares of a Sorted Array

also at 18 more

12

Easy10 co.

Easy

also at 9 more

13

13.Find Pivot Index

Easy9 co.

Easy

also at 8 more

14

14.Generate Parentheses

Medium32 co.

Medium

Recursion & Backtracking

also at 31 more

15

15.Next Greater Element

Medium23 co.

Medium

Stack & Queues

also at 22 more

16

16.Number of Good Pairs

Easy3 co.

Easy

17.Best time to buy and sell stock

also at 2 more

17

Medium45 co.

Medium

also at 44 more

18

18.Shortest Palindrome

Hard6 co.

Hard

19.Remove duplicates from sorted array

also at 5 more

19

Easy22 co.

Easy

20.Remove Nth node from the back of the LL

also at 21 more

20

Medium23 co.

Medium

Linked List

also at 22 more

21

21.Excel Sheet Column Title

Easy4 co.

Easy

22.Peak Index in a Mountain Array

also at 3 more

22

Medium6 co.

Medium

23.Palindrome partitioning

also at 5 more

23

Medium17 co.

Medium

Recursion & Backtracking

also at 16 more

24

24.Longest Common Prefix

Medium26 co.

Medium

Tries

also at 25 more

25

25.Sort Characters by Frequency

Medium15 co.

Medium

Strings Hashing+1

also at 14 more

26

26.Sort an Array

Medium6 co.

Medium

Heaps

also at 5 more

27

27.Sum of Values at Indices With K Set Bits

Easy1 co.

Easy

Bit Manipulation

also at 0 more

28

28.Ant on the Boundary

Easy1 co.

Easy

also at 0 more

29

29.Coin Change

Medium24 co.

Medium

Graphs

also at 23 more

30

30.Contains Duplicate II

Easy11 co.

Easy

also at 10 more

31

31.Next Permutation

Medium32 co.

Medium

32.Count Tested Devices After Test Operations

also at 31 more

32

Easy1 co.

Easy

also at 0 more

33

33.Majority Element-I

Medium28 co.

Medium

34.Count Partitions with Even Sum Difference

also at 27 more

34

Easy1 co.

Easy

also at 0 more

35

35.Rotate Function

Medium3 co.

Medium

36.Intersection of Two Arrays

also at 2 more

36

Easy11 co.

Easy

37.Minimum Right Shifts to Sort the Array

also at 10 more

37

Easy1 co.

Easy

38.Print all primes till N

also at 0 more

38

Medium13 co.

Medium

Mathematics

also at 12 more

39

39.String Compression

Medium21 co.

Medium

also at 20 more

40

40.Nth Digit

Medium3 co.

Medium

42.Largest Odd Number in a String

also at 2 more

41

41.Merge Intervals

Medium51 co.

Medium

Greedy Algorithms

also at 50 more

42

Medium6 co.

Medium

Strings Greedy Algorithms

also at 5 more

43

43.Valid Anagram

Easy25 co.

Easy

Strings Hashing

also at 24 more

44

44.Print the matrix in spiral manner

Medium30 co.

Medium

45.Longest Valid Parentheses

also at 29 more

45

Hard16 co.

Hard

also at 15 more

46

46.Delete and Earn

Medium8 co.

Medium