David Arnold

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1 – 50 of 63

Problem 62. Elapsed Time

Created by: Cody Team

Tags time

1

Solution

18

Size

1

Solution

18

Size

Problem 61. Find state names that end with the letter A

Created by: Cody Team

Tags regexp, states

3

Solutions

86

Size

3

Solutions

86

Size

Problem 64. The Goldbach Conjecture, Part 2

Created by: Cody Team

Tags primes

2

Solutions

26

Size

2

Solutions

26

Size

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

1

Solution

49

Size

1

Solution

49

Size

Problem 59. Pattern matching

Created by: Cody Team

Tags indexing

1

Solution

47

Size

1

Solution

47

Size

Problem 58. Tic Tac Toe FTW

Created by: Cody Team

Tags game, fun, tic tac toe

1

Solution

100

Size

1

Solution

100

Size

Problem 57. Summing Digits within Text

Created by: Cody Team

Tags strings

1

Solution

36

Size

1

Solution

36

Size

Problem 56. Scrabble Scores

Created by: Cody Team

Tags strings, scrabble

1

Solution

69

Size

1

Solution

69

Size

Problem 55. Counting Sequence

Created by: Cody Team

Tags encoding

1

Solution

72

Size

1

Solution

72

Size

Problem 54. Maximum running product for a string of numbers

Created by: Cody Team

Tags sequences, matlab, poor_test_suite

1

Solution

47

Size

1

Solution

47

Size

Problem 53. Duplicates

Created by: Cody Team

Tags strings, sets, matlab

1

Solution

70

Size

1

Solution

70

Size

Problem 52. What is the next step in Conway's Life?

Created by: Cody Team

Tags life, automata

1

Solution

89

Size

1

Solution

89

Size

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

1

Solution

83

Size

1

Solution

83

Size

Problem 50. QWERTY coordinates

Created by: Cody Team

Tags indexing

1

Solution

48

Size

1

Solution

48

Size

Problem 49. Sums with Excluded Digits

Created by: Cody Team

Tags strings

1

Solution

37

Size

1

Solution

37

Size

Problem 48. Making change

Created by: Cody Team

Tags money, subs

1

Solution

66

Size

1

Solution

66

Size

Problem 47. Extract leading non-zero digit

Created by: Cody Team

Tags math, maths, mathematics

1

Solution

26

Size

1

Solution

26

Size

Problem 46. Which doors are open?

Created by: Cody Team

Tags matlab, iteration

1

Solution

17

Size

1

Solution

17

Size

Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

1

Solution

40

Size

1

Solution

40

Size

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

1

Solution

40

Size

1

Solution

40

Size

Problem 43. Subset Sum

Created by: Cody Team

Tags matlab

4

Solutions

84

Size

4

Solutions

84

Size

Problem 42. Find the alphabetic word product

Created by: Cody Team

Tags matlab

1

Solution

14

Size

1

Solution

14

Size

Problem 41. Cell joiner

Created by: Cody Team

Tags strings, matlab

3

Solutions

12

Size

3

Solutions

12

Size

Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

1

Solution

25

Size

1

Solution

25

Size

Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

1

Solution

26

Size

1

Solution

26

Size

Problem 38. Return a list sorted by number of occurrences

Created by: Cody Team

Tags vectors, sorting

1

Solution

62

Size

1

Solution

62

Size

Problem 37. Pascal's Triangle

Created by: Cody Team

Tags math, combinatorics

3

Solutions

17

Size

3

Solutions

17

Size

Problem 36. Find relatively common elements in matrix rows

Created by: Cody Team

Tags matlab

1

Solution

60

Size

1

Solution

60

Size

Problem 35. Quote Doubler

Created by: Cody Team

Tags regexp, strings, quotes

1

Solution

14

Size

1

Solution

14

Size

Problem 34. Binary numbers

Created by: Cody Team

Tags matlab

2

Solutions

20

Size

2

Solutions

20

Size

Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

1

Solution

33

Size

1

Solution

33

Size

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

1

Solution

21

Size

1

Solution

21

Size

Problem 31. Remove all the words that end with "ain"

Created by: Cody Team

Tags matlab 101, regexp, strings

1

Solution

42

Size

1

Solution

42

Size

Problem 30. Sort a list of complex numbers based on far they are from the origin.

Created by: Cody Team

Tags sorting, basic matlab

1

Solution

15

Size

1

Solution

15

Size

Problem 29. Nearest Numbers

Created by: Cody Team

Tags vectors, distance

1

Solution

80

Size

1

Solution

80

Size

Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

2

Solutions

33

Size

2

Solutions

33

Size

Problem 27. Pangrams!

Created by: Cody Team

Tags strings

1

Solution

53

Size

1

Solution

53

Size

Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

Tags matlab 101, siam

1

Solution

17

Size

1

Solution

17

Size

Problem 24. Function Iterator

Created by: Cody Team

Tags anonymous functions, function handles, nested functions

1

Solution

34

Size

1

Solution

34

Size

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets

1

Solution

50

Size

1

Solution

50

Size

Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

1

Solution

19

Size

1

Solution

19

Size

Problem 21. Return the 3n+1 sequence for n

Created by: Cody Team

Tags 3n+1, sample

1

Solution

53

Size

1

Solution

53

Size

Problem 20. Summing digits

Created by: Cody Team

Tags strings, sum

1

Solution

55

Size

1

Solution

55

Size

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags math, matlab 101, permutations

1

Solution

40

Size

1

Solution

40

Size

Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

1

Solution

77

Size

1

Solution

77

Size

Problem 17. Find all elements less than 0 or greater than 10 and replace them with NaN

Created by: Cody Team

Tags data cleaning, basic matlab

2

Solutions

19

Size

2

Solutions

19

Size

Problem 16. Return the largest number that is adjacent to a zero

Created by: Cody Team

Tags vectors

1

Solution

24

Size

1

Solution

24

Size

Problem 15. Find the longest sequence of 1's in a binary sequence.

Created by: Cody Team

Tags regexp, diff, strings

2

Solutions

47

Size

2

Solutions

47

Size

Problem 14. Find the numeric mean of the prime numbers in a matrix.

Created by: Cody Team

Tags easy, matrices

1

Solution

14

Size

1

Solution

14

Size

Problem 13. Remove all the consonants

Created by: Cody Team

Tags regexp, basics

2

Solutions

19

Size

2

Solutions

19

Size

1 – 50 of 63