Problems

1 – 50 of 75

Problem Title Likes Solvers Difficulty

Problem 26. Determine if input is odd

Created by: Cody Team

Tags easy, basic matlab, why matlab

117

21732

Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle, nice

122

24165

Problem 6. Select every other element of a vector

Created by: Cody Team

Tags vectors, matlab 101, indexing

167

28870

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

14874

Problem 76. De-dupe

Created by: Cody Team

Tags matlab

2669

Problem 35. Quote Doubler

Created by: Cody Team

Tags regexp, strings, quotes

2592

Problem 41. Cell joiner

Created by: Cody Team

Tags strings, matlab

5062

Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

101

14696

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

Created by: Cody Team

Tags easy, matrices

8259

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags math, matlab 101, permutations

17791

Problem 20. Summing digits

Created by: Cody Team

Tags strings, sum

7111

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

12349

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

Created by: Cody Team

Tags sorting, basic matlab

5259

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

6872

Problem 72. Interpolator

Created by: Cody Team

Tags interpolation

3181

Problem 9. Who Has the Most Change?

Created by: Cody Team

Tags indexing, notice the rignt sequence of money!, poor description

8305

Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

Tags vectors, matlab 101

128

17625

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

Created by: Cody Team

Tags 3n+1, sample

7566

Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

Tags matlab 101, siam

8125

Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

5813

Problem 4. Make a checkerboard matrix

Created by: Cody Team

Tags matrices, square

197

14688

Problem 66. Find the two-word state names

Created by: Cody Team

Tags regexp, states

1099

Problem 62. Elapsed Time

Created by: Cody Team

Tags time

2593

Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

4728

Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

2304

Problem 87. Indexed Probability Table

Created by: Cody Team

Tags matlab

2091

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

Created by: Cody Team

Tags matlab

2735

Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

3248

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

2141

Problem 57. Summing Digits within Text

Created by: Cody Team

Tags strings

2204

Problem 77. Clean the List of Names

Created by: Cody Team

Tags strings

1484

Problem 42. Find the alphabetic word product

Created by: Cody Team

Tags matlab

3033

Problem 94. Target sorting

Created by: Cody Team

Tags sorting, matlab

4181

Problem 49. Sums with Excluded Digits

Created by: Cody Team

Tags strings

1970

Problem 46. Which doors are open?

Created by: Cody Team

Tags matlab, iteration

2954

Problem 50. QWERTY coordinates

Created by: Cody Team

Tags indexing

1951

Problem 13. Remove all the consonants

Created by: Cody Team

Tags regexp, basics

3812

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets

147

15678

Problem 37. Pascal's Triangle

Created by: Cody Team

Tags math, combinatorics

3855

Problem 27. Pangrams!

Created by: Cody Team

Tags strings

3410

Problem 80. Test for balanced parentheses

Created by: Cody Team

Tags regexp, parens

1133

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

Created by: Cody Team

Tags vectors

4865

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

2675

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

5136

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

Created by: Cody Team

Tags regexp, states

1097

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

2492

Problem 53. Duplicates

Created by: Cody Team

Tags strings, sets, matlab

2017

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

Created by: Cody Team

Tags regexp, diff, strings

5293

Problem 86. Renaming a field in a structure array

Created by: Cody Team

Tags matlab

1317

Problem 48. Making change

Created by: Cody Team

Tags money, subs

3030

1 – 50 of 75

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