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Cognizant interview questions (all time) · FAANGrind

Cognizant

ServiceGlobal All time

Cognizant is a global IT services and consulting company with most of its delivery workforce in India.

Est. 1994 100,001+ employees

Problems: 39
Window: All time
Topics: 6

39 problems

TopicsLinks

1

1.Find the Highest Altitude

Easy6 co.

Easy

also at 5 more

2

2.String Compression

Medium21 co.

Medium

also at 20 more

3

3.Sort Array By Absolute Value

Easy1 co.

Easy

also at 0 more

4

4.Next Permutation

Medium32 co.

Medium

also at 31 more

5

5.First Missing Positive

Hard19 co.

Hard

also at 18 more

6

6.Minimum Absolute Difference

Easy7 co.

Easy

also at 6 more

7

7.Merge two sorted arrays without extra space

Medium33 co.

Medium

also at 32 more

8

8.Palindrome Number

Easy21 co.

Easy

also at 20 more

9

9.Longest Substring Without Repeating Characters

Medium51 co.

Medium

also at 50 more

10

10.Add two numbers in Linked List

Medium38 co.

Medium

also at 37 more

11

11.Count subarrays with given sum

Medium36 co.

Medium

also at 35 more

12

12.Palindrome Check

Medium28 co.

Medium

also at 27 more

13

13.Median of 2 sorted arrays

Hard34 co.

Hard

also at 33 more

14

14.Count Subarrays of Length Three With a Condition

Easy1 co.

Easy

also at 0 more

15

15.Majority Element-I

Medium28 co.

Medium

also at 27 more

16

16.Search X in sorted array

Easy12 co.

Easy

also at 11 more

17

17.Best time to buy and sell stock

Medium45 co.

Medium

Dynamic Programming

also at 44 more

18

Easy58 co.

Easy

also at 57 more

19

19.Single Number

Easy11 co.

Easy

Bit Manipulation

also at 10 more

20

20.Roman to Integer

Easy23 co.

Easy

also at 22 more

21

21.Climbing stairs

Medium24 co.

Medium

Dynamic Programming

also at 23 more

22

22.Left Rotate Array by K Places

Easy25 co.

Easy

also at 24 more

23

23.Valid Paranthesis Checker

Medium50 co.

Medium

Greedy Algorithms

also at 49 more

24

24.Jump Game - I

Medium29 co.

Medium

Greedy Algorithms

also at 28 more

25

25.Reverse Integer

Medium15 co.

Medium

also at 14 more

26

26.Third Maximum Number

Easy2 co.

Easy

also at 1 more

27

27.Fibonacci Number

Easy12 co.

Easy

Dynamic Programming

also at 11 more

28

28.Detect a loop in LL

Medium21 co.

Medium

also at 20 more

29

29.Move Zeros to End

Easy31 co.

Easy

also at 30 more

30

30.Valid Anagram

Easy25 co.

Easy

Strings Hashing

also at 24 more

31

31.Sort Vowels in a String

Medium1 co.

Medium

also at 0 more

32

32.Maximum Consecutive Ones

Easy14 co.

Easy

also at 13 more

33

33.Longest Palindromic Substring

Medium40 co.

Medium

Strings Dynamic Programming

also at 39 more

34

34.Remove duplicates from sorted array

Easy22 co.

Easy

also at 21 more

35

35.Rotten Oranges

Medium39 co.

Medium

also at 38 more

36

36.KMP Algorithm or LPS array

Medium16 co.

Medium

also at 15 more

37

37.Group Words by Anagrams

Medium35 co.

Medium

also at 34 more

38

38.Kadane's Algorithm

Medium45 co.

Medium

also at 44 more

39

39.Smallest Value of the Rearranged Number

Medium1 co.

Medium

also at 0 more

Showing 1–39 of 39

Difficulty split

Easy16(41%)
Medium21(54%)
Hard2(5%)

Top topics

Arrays13
Strings5
Hashing4
Dynamic Programming4
Sorting3
Mathematics2