# Problems

1 – 50 of 254
 Problem Title Likes Solvers Difficulty

#### Problem 55. Counting Sequence

Created by: Cody Team

Tags encoding

17

1396

Created by: goc3

2

62

#### Problem 44345. MATLAB Counter

Created by: Peng Liu

20

240

#### Problem 43. Subset Sum

Created by: Cody Team

Tags matlab

21

1335

#### Problem 1092. Decimation

Created by: James

15

182

#### Problem 2643. Find out base of following arithmetic operation

Created by: Pritesh Shah

Tags numbers

4

12

#### Problem 3098. Scrabble Scores - 13

Created by: goc3

Tags game, board, word

2

14

#### Problem 42504. Data Regularization

Created by: Peng Liu

2

34

Created by: HH

Tags numbers

2

20

#### Problem 44457. Triangle of numbers

Created by: Shaul Salomon

4

302

#### Problem 45453. Spiral Out - 02

Created by: Asif Newaz

1

8

#### Problem 46579. Shape Shifter - Part 1

Created by: Highphi

Tags game, matrix, puzzle

2

5

#### Problem 44374. Tautology

Created by: Jan Orwat

3

41

#### Problem 53810. List the Beatriz numbers

Created by: ChrisR

2

4

#### Problem 96. Knight's Tour Checker

Created by: Cody Team

Tags matlab, chess

23

898

#### Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

10

254

#### Problem 44486. Vector push

Created by: Shaul Salomon

Tags vector, 22105

2

371

#### Problem 848. Calculate a modified Levenshtein distance between two strings

Created by: Matthew Eicholtz

1

70

#### Problem 1826. Find vampire numbers

Created by: Andrew Newell

11

277

#### Problem 88. It dseon't mettar waht oedrr the lrettes in a wrod are.

Created by: Cody Team

Tags regexp, strings

10

1062

#### Problem 283. Give the Shortest Path Through The Maze

Created by: @bmtran (Bryant Tran)

13

47

#### Problem 1742. Generate a Parasitic Number

Created by: James

5

85

#### Problem 520. Choose the best fitting dominoes

Created by: Doug Hull

3

220

#### Problem 2342. Numbers spiral diagonals (Part 2)

Created by: Jean-Marie Sainthillier

2

92

#### Problem 577. Repopulate the City

Created by: Ned Gulley

Tags factors

10

42

#### Problem 52562. Easy Sequences 6: Coefficient sums of derivatives

Created by: Ramon Villamangca

1

7

#### Problem 8057. (Linear) Recurrence Equations - Generalised Fibonacci-like sequences

Created by: Jan Orwat

12

245

#### Problem 84. Longest Divisor Run

Created by: Cody Team

Tags matlab

6

824

#### Problem 733. Extract Built In Functions and Toolbox Functions from String or Function Handle

Created by: Richard Zapor

4

62

Created by: Tim

2

31

#### Problem 68. Kaprekar Steps

Created by: Cody Team

24

1612

#### Problem 71. Read a column of numbers and interpolate missing data

Created by: Cody Team

19

1727

#### Problem 713. Find the maximum number of decimal places in a set of numbers

Created by: Vincent

43

1583

#### Problem 1257. PONG 001: Player vs Wall, 4 Lives, Interactive download

Created by: Richard Zapor

1

9

#### Problem 1286. MatCAT - Reconstruct X from Its X-rays

Created by: Ned Gulley

Tags matrices

9

78

Created by: goc3

1

42

#### Problem 375. N-Dimensional Array Slice

Created by: @bmtran (Bryant Tran)

Tags indexing

11

157

#### Problem 42588. Derivative function

Created by: LY Cao

3

11

#### Problem 1959. German tank problem

Created by: Alfonso Nieto-Castanon

4

24

#### Problem 2085. Sudoku Solver - Standard 9x9

Created by: Richard Zapor

7

32

#### Problem 45362. RIPEMD160 Hash

Created by: David Hill

Tags hash, ripemd160

1

7

#### Problem 44088. '5*3' copy character 3 - five times

Created by: Mehmet OZC

4

15

#### Problem 46938. Numerical computation of the optimal shooting angle of a catapult

Created by: Brandon Caasenbrood

Tags solver, ode, physics

1

3

#### Problem 45243. Binary Array to Hex Representation

Created by: David Hill

1

8

#### Problem 52609. Easy Sequences 11: Factorial Digits without Trailing Zeros

Created by: Ramon Villamangca

0

7

#### Problem 52724. Easy Sequences 20: Counting Prime-sided Rectangles

Created by: Ramon Villamangca

Tags easy, geometry, area

1

3

#### Problem 52764. Easy Sequences 24: Number of Coprime Lattice Points

Created by: Ramon Villamangca

0

3

#### Problem 52784. Easy Sequences 38: Prime Number Delta

Created by: Ramon Villamangca

1

3

#### Problem 52804. Easy Sequences 29: Odd proper divisors of odd proper divisors

Created by: Ramon Villamangca

1

3

#### Problem 52911. Easy Sequences 41: Boxes with Integer Edges

Created by: Ramon Villamangca

1

3

1 – 50 of 254