In First But Second

171

45.03 
Array  Hashing 
lock

Accolite 
Minimum indexed character

308

53.9 
Hashing  STL  String 
lock

OlaCabs 
Find distinct elements

359

12.26 
Hashing  Sorting 
lock


Sum of length

72

27.78 
arrays  Hashing 
lock


Sort by Absolute Difference

191

37.7 
arrays  Hashing 
lock


Swapping pairs make sum equal

427

32.55 
arrays  Hashing 
lock


Check Arithmetic Progression

253

39.53 
Array  Hashing 
lock


Count pair sum

719

37.55 
Array  Hashing  Sorting  STL 
lock


Find pairs with given relation

264

22.35 
arrays  Hashing 
lock


Kth distinct element

283

24.73 
Hashing 
lock


First Come First Serve

183

50.82 
Array  Hashing 
lock


Equivalent SubArrays

66

42.42 
Array  Hashing 
lock


Count the elements

2997

39.44 
Array  Hashing 
lock

Amazon 
Sum equals to Sum

2342

40.99 
Array  Hashing 
lock

Amazon 
Group Anagrams Together

1412

41.71 
Hashing  String 
lock

Amazon  Snapdeal 
Uncommon characters

2723

34.85 
Hashing  String 
lock

Amazon 
Array Subset of another array

955

40.84 
Array  Binary search  Hashing 
lock

Qualcomm 
First element to occur k times

1324

17.98 
Array  Hashing 
lock


Largest Fibonacci Subsequence

881

48.47 
Array  fibonacci  Hashing 
lock

Facebook 
Smallest distinct window

2584

22.48 
Array  Hashing  String 
lock

Amazon 
Smallest window in a string containing all the characters of another string

1500

21.73 
Hashing  String 
lock

Amazon  MakeMyTrip  Streamoid Technologi 
Zero Sum Subarrays

1484

28.71 
Array  Hashing 
lock

Microsoft 
Rahul and his Villa

289

12.46 
Array  Hashing 
lock


Fake Profile

1149

27.5 
Hashing  String 
lock


Total distance travelled in an array

665

51.43 
Array  Hashing 
lock


Find first repeated character

1551

22.57 
Hashing  String 
lock


Check if frequencies can be equal

1284

11.6 
Hashing  String 
lock


Find all pairs with a given sum

8132

12.84 
Array  Hashing 
lock

Amazon  Facebook 
Recaman’s sequence

413

39.23 
Hashing  Maths  Recursion 
lock


First nonrepeating character in a stream

5251

22.99 
Hashing  LinkedList  Queue 
lock

Amazon  Flipkart  Microsoft  Payu  Yahoo 
Love For The Twins

743

46.57 
Hashing  Maths 
lock


Unique Numbers

1307

37.8 
Hashing 
lock

amazon 
Sherlock a Detective

445

39.78 
Array  Hashing 
lock


Check if two arrays are equal or not

3208

38.09 
Array  Hashing  Sorting 
lock

GoldmanSachs 
Ladoo problem

506

33.99 
Hashing 
lock


Longest K unique characters substring

1368

28.36 
Hashing  map  String 
lock

Google 
Find all four sum numbers

5074

9.91 
Array  Hashing  Sorting 
lock

Amazon  Google  Microsoft 
Tom and String

311

21.86 
Hashing  String 
lock


Demonitisation

585

18.46 
Hashing  String 
lock


Pairs with given XOR

1374

27 
BitAlgorithm  Hashing 
lock


Equal 0, 1 and 2

449

39.64 
Hashing  String 
lock


Satisfy the equation

666

16.52 
Hashing 
lock


Find the Odd Occurence

9504

44.23 
Array  BitAlgorithm  Hashing 
lock

Amazon  Snapdeal 
Longest consecutive subsequence

1867

45.42 
Hashing 
lock

Amazon  Walmart labs 
Lucky Number

707

24.05 
Hashing  simplemath 
lock

Epic systems 
A Simple Fraction

4068

15.24 
Hashing  Maths 
lock

Amazon  Microsoft 
Count distinct pairs with difference k

1064

49.81 
Hashing  map 
lock

Facebook 