Companies

also at 9 more

2

2.Text Justification

Hard12 co.

Hard

4.Minimum Absolute Difference Between Elements With Constraint

also at 11 more

3

3.Rotating the Box

Medium4 co.

Medium

Matrix

also at 3 more

4

Medium5 co.

Medium

also at 4 more

5

5.Longest Common Prefix

Medium26 co.

Medium

10.Length of Longest V-Shaped Diagonal Segment

also at 25 more

6

6.Reorganize String

Medium14 co.

Medium

Heaps

also at 13 more

7

7.Design Hit Counter

Medium18 co.

Medium

Arrays Stack & Queues

also at 17 more

8

8.Employee Free Time

Hard7 co.

Hard

Heaps

also at 6 more

9

9.Logger Rate Limiter

Easy7 co.

Easy

Design

also at 6 more

10

Hard3 co.

Hard

Dynamic Programming

also at 2 more

11

11.Design Search Autocomplete System

Hard7 co.

Hard

12.Count Nice Pairs in an Array

also at 6 more

12

Medium3 co.

Medium

Hashing

also at 2 more

13

13.Minimum Operations to Write the Letter Y on a Grid

Medium5 co.

Medium

Matrix

also at 4 more

14

14.Insert Delete GetRandom O(1)

Medium20 co.

Medium

Design

also at 19 more

15

15.Number of Flowers in Full Bloom

Hard6 co.

Hard

16.Subarrays with K Different Integers

also at 5 more

16

Hard12 co.

Hard

17.Longest Substring Without Repeating Characters

also at 11 more

17

Medium51 co.

Medium

18.Magnetic Force Between Two Balls

also at 50 more

18

Medium4 co.

Medium

19.Random Pick with Weight

also at 3 more

19

Medium8 co.

Medium

20.Minimum Number of Frogs Croaking

also at 7 more

20

Medium1 co.

Medium

Hashing

also at 0 more

21

21.Maximize Distance to Closest Person

Medium5 co.

Medium

22.Group the People Given the Group Size They Belong To

also at 4 more

22

Medium1 co.

Medium

Greedy Algorithms

also at 0 more

23

23.Number of Recent Calls

Easy5 co.

Easy

24.Largest rectangle in a histogram

also at 4 more

24

Hard30 co.

Hard

25.Restore the Array From Adjacent Pairs

also at 29 more

25

Medium4 co.

Medium

also at 3 more

26

26.Task Scheduler

Medium17 co.

Medium

Heaps Greedy Algorithms

also at 16 more

27

27.Course Schedule II

Medium26 co.

Medium

29.Number of Adjacent Elements With the Same Color

also at 25 more

28

28.Two Sum

Easy58 co.

Easy

Arrays Hashing

also at 57 more

29

Medium5 co.

Medium

30.Maximum Number of Occurrences of a Substring

also at 4 more

30

Medium2 co.

Medium

31.Brightest Position on Street

also at 1 more

31

Medium8 co.

Medium

Arrays Ordered Sets & Maps

also at 7 more

32

32.Trie Implementation and Advanced Operations

Medium20 co.

Medium

34.Number of Ways to Wear Different Hats to Each Other

also at 19 more

33

33.Merge Intervals

Medium51 co.

Medium

Greedy Algorithms

also at 50 more

34

Hard2 co.

Hard

35.Longest Consecutive Sequence in an Array

also at 1 more

35

Medium37 co.

Medium

Arrays Hashing

also at 36 more

36

36.Rotate matrix by 90 degrees

Medium25 co.

Medium

37.Count the Number of Good Subarrays

also at 24 more

37

Medium3 co.

Medium

38.Design Memory Allocator

also at 2 more

38

Medium10 co.

Medium

Design

also at 9 more

39

39.Rotten Oranges

Medium39 co.

Medium

Arrays Graphs

also at 38 more

40

40.Design Browser History

Medium6 co.

Medium

Linked List

also at 5 more

41

41.Block Placement Queries

Hard5 co.

Hard

Advanced Range Data Structures

also at 4 more

42

42.Candy Crush

Medium10 co.

Medium

also at 9 more

43

43.Course Schedule I

Medium27 co.

Medium

45.Number of Black Blocks

also at 26 more

44

44.Image Smoother

Easy2 co.

Easy

Matrix

also at 1 more

45

Medium5 co.

Medium

Hashing

also at 4 more

46

46.Sliding Window Maximum

Medium36 co.

Medium

47.Print the matrix in spiral manner

also at 35 more

47

Medium30 co.

Medium

48.Convert Digits/Numbers to Words

also at 29 more

48

Medium11 co.

Medium

49.Valid Paranthesis Checker

also at 10 more

49

Medium50 co.

Medium

Greedy Algorithms

also at 49 more

50

50.Trapping Rainwater

Medium48 co.

Medium