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	23	2392
Problem 92. Find state names that start with the letter N Created by: Cody Team Tags regexp, states	2	789
Problem 6. Select every other element of a vector Created by: Cody Team Tags vectors, matlab 101, indexing	124	22815
Problem 50. QWERTY coordinates Created by: Cody Team Tags indexing	13	1498
Problem 85. Remove the polynomials that have positive real elements of their roots. Created by: Cody Team Tags matlab	2	778
Problem 36. Find relatively common elements in matrix rows Created by: Cody Team Tags matlab	5	1002
Problem 91. Get the area codes from a list of phone numbers Created by: Cody Team Tags regexp	1	594
Problem 23. Finding Perfect Squares Created by: Cody Team Tags sets	104	11488
Problem 65. Word Counting and Indexing Created by: Cody Team Tags strings	5	723
Problem 95. Given two arrays, find the maximum overlap Created by: Cody Team Tags matlab	7	578
Problem 81. Mandelbrot Numbers Created by: Cody Team Tags matlab, fractals	8	821
Problem 67. Find common elements in matrix rows Created by: Cody Team Tags matlab	17	1550
Problem 10. Determine whether a vector is monotonically increasing Created by: Cody Team Tags vectors, matlab 101	87	13622
Problem 83. Prime factor digits Created by: Cody Team Tags primes	16	1088
Problem 71. Read a column of numbers and interpolate missing data Created by: Cody Team Tags data cleaning, average	17	1437
Problem 70. Alphabetize by last name Created by: Cody Team Tags regexp, sorting	10	1359
Problem 69. Find the peak 3n+1 sequence value Created by: Cody Team Tags 3n+1	14	1294
Problem 68. Kaprekar Steps Created by: Cody Team Tags matlab, lookup table, poor_problem_statement	19	1304
Problem 67. Find common elements in matrix rows Created by: Cody Team Tags matlab	17	1550
Problem 66. Find the two-word state names Created by: Cody Team Tags regexp, states	3	839
Problem 65. Word Counting and Indexing Created by: Cody Team Tags strings	5	723
Problem 64. The Goldbach Conjecture, Part 2 Created by: Cody Team Tags primes	13	1471
Problem 63. Encode Roman Numerals Created by: Cody Team Tags encoding, lookup table	3	899
Problem 62. Elapsed Time Created by: Cody Team Tags time	13	1932
Problem 61. Find state names that end with the letter A Created by: Cody Team Tags regexp, states	6	811
Problem 60. The Goldbach Conjecture Created by: Cody Team Tags primes	54	4252
Problem 59. Pattern matching Created by: Cody Team Tags indexing	11	1826
Problem 58. Tic Tac Toe FTW Created by: Cody Team Tags game, fun, tic tac toe	18	939
Problem 57. Summing Digits within Text Created by: Cody Team Tags strings	8	1516
Problem 56. Scrabble Scores Created by: Cody Team Tags strings, scrabble	8	1134
Problem 55. Counting Sequence Created by: Cody Team Tags encoding	15	1076
Problem 54. Maximum running product for a string of numbers Created by: Cody Team Tags sequences, matlab, poor_test_suite	5	1281
Problem 53. Duplicates Created by: Cody Team Tags strings, sets, matlab	4	1367
Problem 52. What is the next step in Conway's Life? Created by: Cody Team Tags life, automata	22	784
Problem 51. Find the two most distant points Created by: Cody Team Tags distance	7	1821
Problem 50. QWERTY coordinates Created by: Cody Team Tags indexing	13	1498
Problem 96. Knight's Tour Checker Created by: Cody Team Tags matlab, chess	20	664
Problem 95. Given two arrays, find the maximum overlap Created by: Cody Team Tags matlab	7	578
Problem 94. Target sorting Created by: Cody Team Tags sorting, matlab	25	3584
Problem 93. Calculate the Levenshtein distance between two strings Created by: Cody Team Tags matlab, string metric	13	567
Problem 92. Find state names that start with the letter N Created by: Cody Team Tags regexp, states	2	789
Problem 91. Get the area codes from a list of phone numbers Created by: Cody Team Tags regexp	1	594
Problem 90. Connect Four Win Checker Created by: Cody Team Tags matlab, game	18	593
Problem 89. Counting in Finnish Created by: Cody Team Tags strings, finnish	8	824
Problem 88. It dseon't mettar waht oedrr the lrettes in a wrod are. Created by: Cody Team Tags regexp, strings	8	767
Problem 87. Indexed Probability Table Created by: Cody Team Tags matlab	6	1509
Problem 86. Renaming a field in a structure array Created by: Cody Team Tags matlab	7	836
Problem 85. Remove the polynomials that have positive real elements of their roots. Created by: Cody Team Tags matlab	2	778
Problem 84. Longest Divisor Run Created by: Cody Team Tags matlab	5	604
Problem 83. Prime factor digits Created by: Cody Team Tags primes	16	1088
Problem 82. Remove the small words from a list of words. Created by: Cody Team Tags matlab	3	793
Problem 81. Mandelbrot Numbers Created by: Cody Team Tags matlab, fractals	8	821
Problem 80. Test for balanced parentheses Created by: Cody Team Tags regexp, parens	8	927
Problem 79. DNA N-Gram Distribution Created by: Cody Team Tags matlab	4	663
Problem 78. Implement a ROT13 cipher Created by: Cody Team Tags matlab, encoding, cipher	8	937
Problem 77. Clean the List of Names Created by: Cody Team Tags strings	2	964
Problem 76. De-dupe Created by: Cody Team Tags matlab	10	1983
Problem 75. Find the palindrome Created by: Cody Team Tags strings	5	785
Problem 74. Balanced number Created by: Cody Team Tags matlab	18	2074
Problem 73. Replace NaNs with the number that appears to its left in the row. Created by: Cody Team Tags matlab	15	2187
Problem 25. Remove any row in which a NaN appears Created by: Cody Team Tags matlab 101, siam	67	7231
Problem 24. Function Iterator Created by: Cody Team Tags anonymous functions, function handles, nested functions	52	1246
Problem 23. Finding Perfect Squares Created by: Cody Team Tags sets	104	11488
Problem 22. Remove the vowels Created by: Cody Team Tags regexp, siam	22	4921
Problem 21. Return the 3n+1 sequence for n Created by: Cody Team Tags 3n+1, sample	71	6622
Problem 20. Summing digits Created by: Cody Team Tags strings, sum	32	6143
Problem 19. Swap the first and last columns Created by: Cody Team Tags math, matlab 101, permutations	70	14029
Problem 18. Bullseye Matrix Created by: Cody Team Tags matrices	85	4444
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	58	13745
Problem 16. Return the largest number that is adjacent to a zero Created by: Cody Team Tags vectors	24	4046
Problem 15. Find the longest sequence of 1's in a binary sequence. Created by: Cody Team Tags regexp, diff, strings	57	3890
Problem 14. Find the numeric mean of the prime numbers in a matrix. Created by: Cody Team Tags easy, matrices	40	7249
Problem 13. Remove all the consonants Created by: Cody Team Tags regexp, basics	20	3300
Problem 12. Fibonacci sequence Created by: Cody Team Tags sequences, fibonacci, siam	86	10617
Problem 10. Determine whether a vector is monotonically increasing Created by: Cody Team Tags vectors, matlab 101	87	13622
Problem 9. Who Has the Most Change? Created by: Cody Team Tags indexing, notice the rignt sequence of money!, poor description	68	7239
Problem 8. Add two numbers Created by: Cody Team Tags matlab 101, basic matlab, basics	149	30757
Problem 6. Select every other element of a vector Created by: Cody Team Tags vectors, matlab 101, indexing	124	22815
Problem 5. Triangle Numbers Created by: Cody Team Tags math, triangle, nice	95	19512
Problem 4. Make a checkerboard matrix Created by: Cody Team Tags matrices, square	174	13293
Problem 3. Find the sum of all the numbers of the input vector Created by: Cody Team Tags matlab 101, easy, vector	151	35284
Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10] Created by: Cody Team Tags basic, basics, colon	147	38738
Problem 1. Times 2 - START HERE Created by: Cody Team Tags intro, math, easy	485	63551
Problem 49. Sums with Excluded Digits Created by: Cody Team Tags strings	11	1372
Problem 48. Making change Created by: Cody Team Tags money	14	2447
Problem 47. Extract leading non-zero digit Created by: Cody Team Tags math, maths, mathematics	4	1329
Problem 46. Which doors are open? Created by: Cody Team Tags matlab, iteration	23	2347
Problem 45. Make a Palindrome Number Created by: Cody Team Tags strings	17	1547
Problem 44. Trimming Spaces Created by: Cody Team Tags strings, whitespace	8	1575
Problem 43. Subset Sum Created by: Cody Team Tags matlab	19	1086
Problem 42. Find the alphabetic word product Created by: Cody Team Tags matlab	8	2478
Problem 41. Cell joiner Created by: Cody Team Tags strings, matlab	26	3619
Problem 40. Reverse Run-Length Encoder Created by: Cody Team Tags encoding	13	1745
Problem 39. Which values occur exactly three times? Created by: Cody Team Tags search	19	4081
Problem 38. Return a list sorted by number of occurrences Created by: Cody Team Tags vectors, sorting	10	1655
Problem 37. Pascal's Triangle Created by: Cody Team Tags math, combinatorics	19	3197
Problem 36. Find relatively common elements in matrix rows Created by: Cody Team Tags matlab	5	1002
Problem 35. Quote Doubler Created by: Cody Team Tags regexp, strings, quotes	8	1999
Problem 34. Binary numbers Created by: Cody Team Tags matlab	34	2812
Problem 33. Create times-tables Created by: Cody Team Tags matrices	74	11231
Problem 32. Most nonzero elements in row Created by: Cody Team Tags matrices	33	6157
Problem 31. Remove all the words that end with "ain" Created by: Cody Team Tags matlab 101, regexp, strings	16	1438
Problem 30. Sort a list of complex numbers based on far they are from the origin. Created by: Cody Team Tags sorting, basic matlab	22	4571
Problem 29. Nearest Numbers Created by: Cody Team Tags vectors, distance	34	3471
Problem 28. Counting Money Created by: Cody Team Tags regexp, strings	12	2605
Problem 27. Pangrams! Created by: Cody Team Tags strings	29	2738
Problem 26. Determine if input is odd Created by: Cody Team Tags easy, basic matlab, why matlab	107	20303

Recent Group Finishers252

Recent Activity

	Enver Parlak submitted Solution 6564964 to Problem 8. Add two numbers 4 minutes ago
	Enver Parlak submitted Solution 6564959 to Problem 3. Find the sum of all the numbers of the input vector 5 minutes ago
	Enver Parlak submitted Solution 6564954 to Problem 3. Find the sum of all the numbers of the input vector 5 minutes ago
	Enver Parlak submitted Solution 6564949 to Problem 3. Find the sum of all the numbers of the input vector 6 minutes ago
	Enver Parlak submitted Solution 6564934 to Problem 4. Make a checkerboard matrix 9 minutes ago

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!