Cody

# Cody Challenge

Curated by : Cody Team

Cody Challenge Master

+50 points

Problem Title Likes Solvers

#### Problem 72. Interpolator

Created by: Cody Team

17

1961

#### Problem 81. Mandelbrot Numbers

Created by: Cody Team

7

623

#### Problem 67. Find common elements in matrix rows

Created by: Cody Team

Tags matlab

13

1231

#### Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

72

11914

#### Problem 92. Find state names that start with the letter N

Created by: Cody Team

Tags regexp, states

1

598

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

Created by: Cody Team

15

1235

#### Problem 70. Alphabetize by last name

Created by: Cody Team

Tags regexp, sorting

9

1159

#### Problem 69. Find the peak 3n+1 sequence value

Created by: Cody Team

Tags 3n+1

11

1107

#### Problem 68. Kaprekar Steps

Created by: Cody Team

17

1092

#### Problem 67. Find common elements in matrix rows

Created by: Cody Team

Tags matlab

13

1231

#### Problem 66. Find the two-word state names

Created by: Cody Team

Tags regexp, states

2

732

#### Problem 65. Word Counting and Indexing

Created by: Cody Team

4

605

#### Problem 64. The Goldbach Conjecture, Part 2

Created by: Cody Team

Tags primes

12

1284

#### Problem 63. Encode Roman Numerals

Created by: Cody Team

3

739

#### Problem 62. Elapsed Time

Created by: Cody Team

Tags time

12

1726

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

Created by: Cody Team

Tags regexp, states

6

707

#### Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

53

3892

#### Problem 59. Pattern matching

Created by: Cody Team

Tags indexing

10

1598

#### Problem 58. Tic Tac Toe FTW

Created by: Cody Team

16

785

#### Problem 57. Summing Digits within Text

Created by: Cody Team

Tags strings

8

1326

#### Problem 56. Scrabble Scores

Created by: Cody Team

7

962

#### Problem 55. Counting Sequence

Created by: Cody Team

Tags encoding

12

900

#### Problem 54. Maximum running product for a string of numbers

Created by: Cody Team

4

1112

#### Problem 53. Duplicates

Created by: Cody Team

3

1163

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

Created by: Cody Team

Tags life, automata

21

639

#### Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

6

1628

#### Problem 50. QWERTY coordinates

Created by: Cody Team

Tags indexing

8

1261

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

Created by: Cody Team

Tags matlab, chess

16

535

#### Problem 95. Given two strings, find the maximum overlap

Created by: Cody Team

Tags matlab

7

461

#### Problem 94. Target sorting

Created by: Cody Team

Tags sorting, matlab

23

3375

#### Problem 93. Calculate the Levenshtein distance between two strings

Created by: Cody Team

12

456

#### Problem 92. Find state names that start with the letter N

Created by: Cody Team

Tags regexp, states

1

598

#### Problem 91. Get the area codes from a list of phone numbers

Created by: Cody Team

Tags regexp

1

532

#### Problem 90. Connect Four Win Checker

Created by: Cody Team

Tags matlab, game

15

485

#### Problem 89. Counting in Finnish

Created by: Cody Team

8

707

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

Created by: Cody Team

Tags regexp, strings

7

652

#### Problem 87. Indexed Probability Table

Created by: Cody Team

Tags matlab

4

1365

#### Problem 86. Renaming a field in a structure array

Created by: Cody Team

Tags matlab

6

731

#### Problem 85. Remove the polynomials that have positive real elements of their roots.

Created by: Cody Team

Tags matlab

2

629

#### Problem 84. Longest Divisor Run

Created by: Cody Team

Tags matlab

4

482

#### Problem 83. Prime factor digits

Created by: Cody Team

14

831

#### Problem 82. Remove the small words from a list of words.

Created by: Cody Team

Tags matlab

3

672

#### Problem 81. Mandelbrot Numbers

Created by: Cody Team

7

623

#### Problem 80. Test for balanced parentheses

Created by: Cody Team

Tags regexp, parens

8

874

#### Problem 79. DNA N-Gram Distribution

Created by: Cody Team

Tags matlab

4

556

#### Problem 78. Implement a ROT13 cipher

Created by: Cody Team

6

835

#### Problem 77. Clean the List of Names

Created by: Cody Team

Tags strings

2

829

#### Problem 76. De-dupe

Created by: Cody Team

Tags matlab

10

1800

#### Problem 75. Find the palindrome

Created by: Cody Team

Tags strings

4

657

#### Problem 74. Balanced number

Created by: Cody Team

Tags matlab

15

1900

#### Problem 73. Replace NaNs with the number that appears to its left in the row.

Created by: Cody Team

Tags matlab

13

2018

#### Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

65

6826

#### Problem 24. Function Iterator

Created by: Cody Team

48

1091

#### Problem 23. Finding Perfect Squares

Created by: Cody Team

80

9818

#### Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

22

4596

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

Created by: Cody Team

Tags 3n+1, sample

63

6166

#### Problem 20. Summing digits

Created by: Cody Team

Tags strings, sum

29

5702

#### Problem 19. Swap the first and last columns

Created by: Cody Team

58

12408

#### Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

78

4106

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

Created by: Cody Team

54

13046

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

Created by: Cody Team

Tags vectors

23

3749

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

Created by: Cody Team

51

3369

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

Created by: Cody Team

Tags easy, matrices

37

6781

#### Problem 13. Remove all the consonants

Created by: Cody Team

Tags regexp, basics

17

3074

#### Problem 12. Fibonacci sequence

Created by: Cody Team

74

9865

#### Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

72

11914

#### Problem 9. Who Has the Most Change?

Created by: Cody Team

58

6717

#### Problem 8. Add two numbers

Created by: Cody Team

123

27981

#### Problem 6. Select every other element of a vector

Created by: Cody Team

99

20331

#### Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle, nice

87

17463

#### Problem 4. Make a checkerboard matrix

Created by: Cody Team

164

12378

#### Problem 3. Find the sum of all the numbers of the input vector

Created by: Cody Team

116

31940

#### Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10]

Created by: Cody Team

Tags basic, basics, colon

131

35545

#### Problem 1. Times 2 - START HERE

Created by: Cody Team

Tags intro, math, easy

302

54191

#### Problem 49. Sums with Excluded Digits

Created by: Cody Team

Tags strings

11

1223

#### Problem 48. Making change

Created by: Cody Team

Tags money

13

2197

#### Problem 47. Extract leading non-zero digit

Created by: Cody Team

3

1205

#### Problem 46. Which doors are open?

Created by: Cody Team

21

2183

#### Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

14

1398

#### Problem 44. Trimming Spaces

Created by: Cody Team

7

1421

#### Problem 43. Subset Sum

Created by: Cody Team

Tags matlab

16

951

#### Problem 42. Find the alphabetic word product

Created by: Cody Team

Tags matlab

6

2321

#### Problem 41. Cell joiner

Created by: Cody Team

Tags strings, matlab

20

3111

#### Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

12

1600

#### Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

17

3816

#### Problem 38. Return a list sorted by number of occurrences

Created by: Cody Team

8

1504

#### Problem 37. Pascal's Triangle

Created by: Cody Team

16

2979

#### Problem 36. Find relatively common elements in matrix rows

Created by: Cody Team

Tags matlab

4

865

#### Problem 35. Quote Doubler

Created by: Cody Team

6

1836

#### Problem 34. Binary numbers

Created by: Cody Team

Tags matlab

28

2500

#### Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

61

9831

#### Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

31

5831

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

Created by: Cody Team

14

1292

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

Created by: Cody Team

20

4326

#### Problem 29. Nearest Numbers

Created by: Cody Team

30

3238

#### Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

10

2401

#### Problem 27. Pangrams!

Created by: Cody Team

Tags strings

25

2486

#### Problem 26. Determine if input is odd

Created by: Cody Team

100

19329

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