Problems

1 – 50 of 94

Problem Title Likes Solvers

Problem 1. Times 2 - START HERE

Created by: Cody Team

Tags intro, math, easy

142

58587

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

Created by: Cody Team

Tags basic, basics, colon

43242

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

Created by: Cody Team

Tags matlab 101, easy, vector

33873

Problem 8. Add two numbers

Created by: Cody Team

Tags matlab 101, basic matlab, basics

30212

Problem 26. Determine if input is odd

Created by: Cody Team

Tags easy, basic matlab, why matlab

23273

Problem 6. Select every other element of a vector

Created by: Cody Team

Tags vectors, matlab 101, indexing

21298

Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle, nice

19046

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

15570

Problem 4. Make a checkerboard matrix

Created by: Cody Team

Tags matrices, square

146

15094

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags math, matlab 101, permutations

12778

Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

Tags vectors, matlab 101

12318

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

11593

Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

10443

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets, poor_test_suite

10048

Problem 9. Who Has the Most Change?

Created by: Cody Team

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

7745

Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

Tags matlab 101, siam

7612

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

Created by: Cody Team

Tags easy, matrices

7382

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

Created by: Cody Team

Tags 3n+1, sample

7031

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

6579

Problem 20. Summing digits

Created by: Cody Team

Tags strings

6119

Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

5037

Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

4779

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

Created by: Cody Team

Tags sorting, basic matlab

4767

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

4710

Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

4273

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

Created by: Cody Team

Tags vectors

4088

Problem 94. Target sorting

Created by: Cody Team

Tags sorting, matlab

3707

Problem 29. Nearest Numbers

Created by: Cody Team

Tags vectors, distance

3657

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

Created by: Cody Team

Tags regexp, diff, strings

3352

Problem 13. Remove all the consonants

Created by: Cody Team

Tags regexp, basics

3279

Problem 37. Pascal's Triangle

Created by: Cody Team

Tags math, combinatorics

3266

Problem 41. Cell joiner

Created by: Cody Team

Tags strings, matlab

2979

Problem 27. Pangrams!

Created by: Cody Team

Tags strings

2694

Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

2611

Problem 34. Binary numbers

Created by: Cody Team

Tags matlab

2594

Problem 42. Find the alphabetic word product

Created by: Cody Team

Tags matlab

2587

Problem 48. Making change

Created by: Cody Team

Tags money

2511

Problem 46. Which doors are open?

Created by: Cody Team

Tags matlab, iteration

2472

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

Created by: Cody Team

Tags matlab

2220

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

2192

Problem 72. Interpolator

Created by: Cody Team

Tags interpolation

2152

Problem 59. Pattern matching

Created by: Cody Team

Tags indexing

1942

Problem 35. Quote Doubler

Created by: Cody Team

Tags regexp, strings, quotes

1902

Problem 76. De-dupe

Created by: Cody Team

Tags matlab

1897

Problem 62. Elapsed Time

Created by: Cody Team

Tags time

1860

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

1809

Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

1786

Problem 38. Return a list sorted by number of occurrences

Created by: Cody Team

Tags vectors, sorting

1609

Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

1562

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

1525

1 – 50 of 94

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