Cody Challenge

<div style = "text-align: start; line-height: normal; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: none solid rgb(0, 0, 0); white-space: normal; "><div style="display: block; min-width: 0px; padding-top: 0px; perspective-origin: 289.5px 25.5px; transform-origin: 289.5px 25.5px; "><div style="font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-bottom: 9px; margin-left: 4px; margin-right: 10px; margin-top: 2px; text-align: left; white-space: pre-wrap; perspective-origin: 266.5px 10.5px; transform-origin: 266.5px 10.5px; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="display: inline; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 0px 0px; transform-origin: 0px 0px; "><span style="">Basic to advanced MATLAB problems created by the Cody Team at MathWorks.</span></span></div><div style="font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-bottom: 9px; margin-left: 4px; margin-right: 10px; margin-top: 2px; text-align: left; white-space: pre-wrap; perspective-origin: 266.5px 10.5px; transform-origin: 266.5px 10.5px; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="display: inline; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 0px 0px; transform-origin: 0px 0px; "><span style="">A great starting place for new Cody players! </span></span></div></div></div>

Cody Challenge Master

+50 points

Problem Title	Likes	Solvers
Problem 72. Interpolator Created by: Cody Team Tags interpolation	17	1966
Problem 81. Mandelbrot Numbers Created by: Cody Team Tags matlab, fractals	7	626
Problem 67. Find common elements in matrix rows Created by: Cody Team Tags matlab	13	1234
Problem 10. Determine whether a vector is monotonically increasing Created by: Cody Team Tags vectors, matlab 101	72	11932
Problem 92. Find state names that start with the letter N Created by: Cody Team Tags regexp, states	1	601
Problem 71. Read a column of numbers and interpolate missing data Created by: Cody Team Tags data cleaning, average	15	1235
Problem 70. Alphabetize by last name Created by: Cody Team Tags regexp, sorting	9	1160
Problem 69. Find the peak 3n+1 sequence value Created by: Cody Team Tags 3n+1	11	1108
Problem 68. Kaprekar Steps Created by: Cody Team Tags matlab, lookup table, poor_problem_statement	17	1093
Problem 67. Find common elements in matrix rows Created by: Cody Team Tags matlab	13	1234
Problem 66. Find the two-word state names Created by: Cody Team Tags regexp, states	2	733
Problem 65. Word Counting and Indexing Created by: Cody Team Tags strings, poor_test_suite	4	607
Problem 64. The Goldbach Conjecture, Part 2 Created by: Cody Team Tags primes	12	1286
Problem 63. Encode Roman Numerals Created by: Cody Team Tags encoding, lookup table	3	740
Problem 62. Elapsed Time Created by: Cody Team Tags time	12	1727
Problem 61. Find state names that end with the letter A Created by: Cody Team Tags regexp, states	6	709
Problem 60. The Goldbach Conjecture Created by: Cody Team Tags primes	53	3895
Problem 59. Pattern matching Created by: Cody Team Tags indexing	10	1600
Problem 58. Tic Tac Toe FTW Created by: Cody Team Tags game, fun, tic tac toe	16	786
Problem 57. Summing Digits within Text Created by: Cody Team Tags strings	8	1328
Problem 56. Scrabble Scores Created by: Cody Team Tags strings, scrabble	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 Tags sequences, matlab, poor_test_suite	4	1113
Problem 53. Duplicates Created by: Cody Team Tags strings, sets, matlab	3	1163
Problem 52. What is the next step in Conway's Life? Created by: Cody Team Tags life, automata	21	640
Problem 51. Find the two most distant points Created by: Cody Team Tags distance	6	1629
Problem 50. QWERTY coordinates Created by: Cody Team Tags indexing	8	1262
Problem 96. Knight's Tour Checker Created by: Cody Team Tags matlab, chess	16	537
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	3378
Problem 93. Calculate the Levenshtein distance between two strings Created by: Cody Team Tags matlab, string metric	12	456
Problem 92. Find state names that start with the letter N Created by: Cody Team Tags regexp, states	1	601
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	487
Problem 89. Counting in Finnish Created by: Cody Team Tags strings, finnish	8	707
Problem 88. It dseon't mettar waht oedrr the lrettes in a wrod are. Created by: Cody Team Tags regexp, strings	7	654
Problem 87. Indexed Probability Table Created by: Cody Team Tags matlab	4	1366
Problem 86. Renaming a field in a structure array Created by: Cody Team Tags matlab	6	732
Problem 85. Remove the polynomials that have positive real elements of their roots. Created by: Cody Team Tags matlab	2	630
Problem 84. Longest Divisor Run Created by: Cody Team Tags matlab	4	486
Problem 83. Prime factor digits Created by: Cody Team Tags primes, poor_test_suite	14	832
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 Tags matlab, fractals	7	626
Problem 80. Test for balanced parentheses Created by: Cody Team Tags regexp, parens	8	875
Problem 79. DNA N-Gram Distribution Created by: Cody Team Tags matlab	4	557
Problem 78. Implement a ROT13 cipher Created by: Cody Team Tags matlab, encoding, cipher	6	836
Problem 77. Clean the List of Names Created by: Cody Team Tags strings	2	830
Problem 76. De-dupe Created by: Cody Team Tags matlab	10	1801
Problem 75. Find the palindrome Created by: Cody Team Tags strings	4	658
Problem 74. Balanced number Created by: Cody Team Tags matlab	15	1902
Problem 73. Replace NaNs with the number that appears to its left in the row. Created by: Cody Team Tags matlab	13	2019
Problem 25. Remove any row in which a NaN appears Created by: Cody Team Tags matlab 101, siam	65	6829
Problem 24. Function Iterator Created by: Cody Team Tags anonymous functions, function handles, nested functions	48	1091
Problem 23. Finding Perfect Squares Created by: Cody Team Tags sets, poor_test_suite	80	9839
Problem 22. Remove the vowels Created by: Cody Team Tags regexp, siam	22	4600
Problem 21. Return the 3n+1 sequence for n Created by: Cody Team Tags 3n+1, sample	63	6174
Problem 20. Summing digits Created by: Cody Team Tags strings, sum	29	5706
Problem 19. Swap the first and last columns Created by: Cody Team Tags math, matlab 101, permutations	59	12426
Problem 18. Bullseye Matrix Created by: Cody Team Tags matrices	78	4108
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	55	13058
Problem 16. Return the largest number that is adjacent to a zero Created by: Cody Team Tags vectors	23	3752
Problem 15. Find the longest sequence of 1's in a binary sequence. Created by: Cody Team Tags regexp, diff, strings	51	3373
Problem 14. Find the numeric mean of the prime numbers in a matrix. Created by: Cody Team Tags easy, matrices	38	6785
Problem 13. Remove all the consonants Created by: Cody Team Tags regexp, basics	17	3081
Problem 12. Fibonacci sequence Created by: Cody Team Tags sequences, fibonacci, siam	74	9879
Problem 10. Determine whether a vector is monotonically increasing Created by: Cody Team Tags vectors, matlab 101	72	11932
Problem 9. Who Has the Most Change? Created by: Cody Team Tags indexing, notice the rignt sequence of money!, poor description	58	6729
Problem 8. Add two numbers Created by: Cody Team Tags matlab 101, basic matlab, basics	123	28028
Problem 6. Select every other element of a vector Created by: Cody Team Tags vectors, matlab 101, indexing	99	20368
Problem 5. Triangle Numbers Created by: Cody Team Tags math, triangle, nice	87	17495
Problem 4. Make a checkerboard matrix Created by: Cody Team Tags matrices, square	164	12392
Problem 3. Find the sum of all the numbers of the input vector Created by: Cody Team Tags matlab 101, easy, vector	117	31993
Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10] Created by: Cody Team Tags basic, basics, colon	131	35604
Problem 1. Times 2 - START HERE Created by: Cody Team Tags intro, math, easy	305	54484
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 Tags math, maths, mathematics	3	1205
Problem 46. Which doors are open? Created by: Cody Team Tags matlab, iteration	21	2184
Problem 45. Make a Palindrome Number Created by: Cody Team Tags strings	14	1399
Problem 44. Trimming Spaces Created by: Cody Team Tags strings, whitespace	7	1422
Problem 43. Subset Sum Created by: Cody Team Tags matlab	16	952
Problem 42. Find the alphabetic word product Created by: Cody Team Tags matlab	6	2322
Problem 41. Cell joiner Created by: Cody Team Tags strings, matlab	20	3119
Problem 40. Reverse Run-Length Encoder Created by: Cody Team Tags encoding	12	1601
Problem 39. Which values occur exactly three times? Created by: Cody Team Tags search	17	3818
Problem 38. Return a list sorted by number of occurrences Created by: Cody Team Tags vectors, sorting	8	1504
Problem 37. Pascal's Triangle Created by: Cody Team Tags math, combinatorics	16	2981
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 Tags regexp, strings, quotes	6	1836
Problem 34. Binary numbers Created by: Cody Team Tags matlab	28	2501
Problem 33. Create times-tables Created by: Cody Team Tags matrices	61	9844
Problem 32. Most nonzero elements in row Created by: Cody Team Tags matrices	31	5835
Problem 31. Remove all the words that end with "ain" Created by: Cody Team Tags matlab 101, regexp, strings	14	1294
Problem 30. Sort a list of complex numbers based on far they are from the origin. Created by: Cody Team Tags sorting, basic matlab	20	4328
Problem 29. Nearest Numbers Created by: Cody Team Tags vectors, distance	30	3241
Problem 28. Counting Money Created by: Cody Team Tags regexp, strings	10	2402
Problem 27. Pangrams! Created by: Cody Team Tags strings	25	2487
Problem 26. Determine if input is odd Created by: Cody Team Tags easy, basic matlab, why matlab	102	19342

Recent Group Finishers239

Recent Activity

	Rik submitted Solution 4641638 to Problem 73. Replace NaNs with the number that appears to its left in the row. 35 minutes ago
	Rik submitted Solution 4641628 to Problem 73. Replace NaNs with the number that appears to its left in the row. 37 minutes ago
	Rik submitted Solution 4641493 to Problem 74. Balanced number 55 minutes ago
	Rik submitted Solution 4641458 to Problem 75. Find the palindrome 1 hour and 1 minute ago
	Rik submitted Solution 4641318 to Problem 76. De-dupe 1 hour and 41 minutes ago

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