Problems

1 – 50 of 94

Problem Title Likes Solvers

Problem 1. Times 2 - START HERE

Created by: Cody Team

Tags intro, math, easy

158

62044

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

Created by: Cody Team

Tags basic, basics, colon

44105

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

Created by: Cody Team

Tags matlab 101, easy, vector

34759

Problem 8. Add two numbers

Created by: Cody Team

Tags matlab 101, basic matlab, basics

30928

Problem 26. Determine if input is odd

Created by: Cody Team

Tags easy, basic matlab, why matlab

23504

Problem 6. Select every other element of a vector

Created by: Cody Team

Tags vectors, matlab 101, indexing

21828

Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle, nice

19434

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

15704

Problem 4. Make a checkerboard matrix

Created by: Cody Team

Tags matrices, square

146

15279

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags math, matlab 101, permutations

13070

Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

Tags vectors, matlab 101

12716

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

11761

Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

10704

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets, poor_test_suite

10397

Problem 9. Who Has the Most Change?

Created by: Cody Team

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

7847

Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

Tags matlab 101, siam

7680

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

Created by: Cody Team

Tags easy, matrices

7460

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

Created by: Cody Team

Tags 3n+1, sample

7098

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

6649

Problem 20. Summing digits

Created by: Cody Team

Tags strings

6181

Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

5086

Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

4822

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

Created by: Cody Team

Tags sorting, basic matlab

4796

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

4744

Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

4314

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

Created by: Cody Team

Tags vectors

4134

Problem 94. Target sorting

Created by: Cody Team

Tags sorting, matlab

3726

Problem 29. Nearest Numbers

Created by: Cody Team

Tags vectors, distance

3689

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

Created by: Cody Team

Tags regexp, diff, strings

3453

Problem 13. Remove all the consonants

Created by: Cody Team

Tags regexp, basics

3317

Problem 37. Pascal's Triangle

Created by: Cody Team

Tags math, combinatorics

3294

Problem 41. Cell joiner

Created by: Cody Team

Tags strings, matlab

3073

Problem 27. Pangrams!

Created by: Cody Team

Tags strings

2722

Problem 34. Binary numbers

Created by: Cody Team

Tags matlab

2641

Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

2631

Problem 42. Find the alphabetic word product

Created by: Cody Team

Tags matlab

2610

Problem 48. Making change

Created by: Cody Team

Tags money

2536

Problem 46. Which doors are open?

Created by: Cody Team

Tags matlab, iteration

2495

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

Created by: Cody Team

Tags matlab

2244

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

2216

Problem 72. Interpolator

Created by: Cody Team

Tags interpolation

2193

Problem 59. Pattern matching

Created by: Cody Team

Tags indexing

1959

Problem 35. Quote Doubler

Created by: Cody Team

Tags regexp, strings, quotes

1919

Problem 76. De-dupe

Created by: Cody Team

Tags matlab

1916

Problem 62. Elapsed Time

Created by: Cody Team

Tags time

1876

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

1823

Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

1801

Problem 38. Return a list sorted by number of occurrences

Created by: Cody Team

Tags vectors, sorting

1617

Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

1584

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

1539

1 – 50 of 94

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