Count ways to express N as the sum of 1,3 and 4

438

23.74 
modular arithmetic  DynamicProgramming 
lock

 
Amicable Pair

384

61.46 
Mathematical 
lock

 
Rope Cutting

553

46.84 
Array  Sorting 
lock

 
Maximize permutations

179

16.76 
Maths  permutation  String 
lock

 
Mike and Chocolates

118

17.8 
simplemath 
lock

 
C++ Alternate words in reverse order.

107

21.5 
CPP  STL  strings 
lock

 
Ease the Array

2544

23.86 
Array 
lock

Microsoft 
Closest Triplet

209

35.41 
 
lock

 
Extra Perfect Numbers

222

52.7 
BitAlgorithm  number theory 
lock

 
C++ Visible Numbers

354

31.07 
Arrays  CPP 
lock

 
Maximum height of the staircase

1020

50.49 
Maths 
lock

GoldmanSachs 
C++ Basic Data types

226

18.14 
CPP  Data Type  String 
lock

 
Kronecker Product

80

21.25 
Matrix 
lock

 
Find smallest values of x and y such that ax – by = 0

383

42.04 
Mathematical 
lock

 
Cosmic Number

370

25.14 
Mathematical  Maths  numbers  String 
lock

 
Missing Intervals

427

13.35 
STL  String 
lock

 
Compute nCr % p

271

13.65 
Mathematical 
lock

 
Equal Sums

268

36.57 
Array 
lock

 
Even Decimal Binary String

84

34.52 
String 
lock

 
Check if array contains contiguous integers with duplicates allowed

3864

32.95 
Array  Hashing  Sorting 
lock

Amazon 
Rearrange an array such that arr[i] = i

743

46.3 
Arrays  Hashing 
lock

 
NonRepeating Element

1205

46.47 
Array  Hashing  STL 
lock

Snapdeal 
Next Happy Number

147

50.34 
Recursion 
lock

 
The invariable units digit

419

22.91 
Maths  strings 
lock

 
Word with maximum frequency

173

41.04 
Arrays  maps  strings 
lock

 
Form a number divisible by 3 using array digits

456

57.68 
Maths 
lock

 
A New Year Game

412

20.87 
misc 
lock

 
Smallest subarray with all occurences of most frequent element

582

13.75 
Array 
lock

 
Longest substring having frequency of each char less than integer k

97

26.8 
String 
lock

 
Reorganize The Array

910

19.12 
Array 
lock

 
Remainder of array multiplication

680

20 
modular arithmetic  number theory 
lock

 
Add two numbers represented by two arrays

503

39.36 
Arrays  strings 
lock

 
Nearest multiple of 10

835

16.89 
Maths  String 
lock

 
Remove leading zeros from an IP address

308

43.18 
ComputerNetwork  strings 
lock

 
Swap the closest and farthest digits

307

36.81 
integers  strings 
lock

 
The Palindrome Pattern

90

27.78 
2D Array  function 
lock

 
Number of edges in a Planar Graph

59

35.59 
Maths  String 
lock

 
Factors Sum

745

33.83 
factorization 
lock

 
Largest sum of digits in all Divisors

309

50.16 
 
lock

 
Mystic Falls School

387

65.12 
BitAlgorithm 
lock

 
Floating point number even or odd

390

36.41 
String 
lock

 
N trailing zeroes in factorials

180

29.44 
Binary search  factorial  number theory 
lock

 
Count numbers with unit digit K in given range

609

12.97 
Maths 
lock

 
The Mighty Divisible Number

389

12.08 
division  Mathematical  Maths  number theory  numbers 
lock

 
Sexy Primes

739

6.36 
Maths  sieve 
lock

 
Maximum difference of zeros and ones in binary string

238

38.66 
DynamicProgramming  kadane  String 
lock

 
Maximum distinct elements after removing K elements

466

35.41 
Array  Hashing  Heap 
lock

 
Sum of all divisors from 1 to n

471

12.95 
Maths 
lock

 
Smallest subarray with all occurrences of a most frequent element

149

26.17 
Array  Hashing 
lock

 
Find winner of the Game of Nim

434

73.27 
BitAlgorithm  Game Theory 
lock

 