Arrays are an integral part of coding interviews for placements. We have created a guide featuring top array interview questions to strengthen the foundation of arrays and data structures to bring you a step closer to your dream job.

Problem Title

Difficulty

Avg Time to solve

Attempted

K Largest Element

49

Moderate

10 mins

664

Cube Sum Pairs

26

Easy

15 mins

500

Copy And Reverse The Array

9

Easy

10 mins

283

Left Rotations of An Array

4

Moderate

10 mins

105

Binary Array Sorting

5

Easy

20 mins

231

Hotel Floors

5

Easy

10 mins

129

Product Array Puzzle

3

Easy

15 mins

128

Maximum of minimum for every window size

7

Hard

45 mins

86

Relative Sorting

14

Moderate

25 mins

215

Linear Probing

7

Easy

15 mins

54

Positive Negative Pair

2

Easy

10 mins

120

Chess Tournament

18

Easy

20 mins

67

Ninja Fight

7

Easy

10 mins

83

Generate Binary Numbers

5

Easy

10 mins

83

Count Distinct Elements In Every Window

0

Moderate

15 mins

74

Missing number in Arithmetic progression

10

Easy

15 mins

179

Replace Each Element Of Array With Its Corresponding Rank

0

Easy

10 mins

75

Minimum and Maximum Cost to buy N Candies

2

Hard

10 mins

189

Sort an array in wave form

7

Easy

10 mins

110

Count all sub-arrays having sum divisible by k

46

Moderate

15 mins

309

Search For Integers With Given Difference And At Given Distance

11

Moderate

20 mins

213

Count Distinct Element in Every K Size Window

11

Easy

15 mins

250

Longest subset zero sum

5

Easy

15 mins

211

Stocks are profitable

9

Moderate

20 mins

474

Duplicate In Array

19

Easy

15 mins

918

K Largest Element NEW

Moderate

49 upvotes

Cube Sum Pairs NEW

Easy

26 upvotes

Copy And Reverse The Array NEW

Easy

9 upvotes

Left Rotations of An Array NEW

Moderate

4 upvotes

Binary Array Sorting NEW

Easy

5 upvotes

Hotel Floors NEW

Easy

5 upvotes

Product Array Puzzle NEW

Easy

3 upvotes

Maximum of minimum for every window size NEW

Hard

7 upvotes

Relative Sorting NEW

Moderate

14 upvotes

Linear Probing NEW

Easy

7 upvotes

Positive Negative Pair NEW

Easy

2 upvotes

Chess Tournament NEW

Easy

18 upvotes

Ninja Fight NEW

Easy

7 upvotes

Generate Binary Numbers NEW

Easy

5 upvotes

Count Distinct Elements In Every Window NEW

Moderate

0 upvotes

Missing number in Arithmetic progression NEW

Easy

10 upvotes

Replace Each Element Of Array With Its Corresponding Rank NEW

Easy

0 upvotes

Minimum and Maximum Cost to buy N Candies NEW

Hard

2 upvotes

Sort an array in wave form NEW

Easy

7 upvotes

Count all sub-arrays having sum divisible by k

Moderate

46 upvotes

Search For Integers With Given Difference And At Given Distance

Moderate

11 upvotes

Count Distinct Element in Every K Size Window

Easy

11 upvotes

Longest subset zero sum

Easy

5 upvotes

Stocks are profitable

Moderate

9 upvotes

Duplicate In Array

Easy

19 upvotes

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