Problems

1 – 50 of 94

Problem Title Likes Solvers

Problem 1. Times 2 - START HERE

Created by: Cody Team

Tags intro, math, easy

305

54473

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

Created by: Cody Team

Tags matlab 101, easy, vector

117

31992

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

20367

Problem 26. Determine if input is odd

Created by: Cody Team

Tags easy, basic matlab, why matlab

102

19342

Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle, nice

17495

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

13058

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags math, matlab 101, permutations

12426

Problem 4. Make a checkerboard matrix

Created by: Cody Team

Tags matrices, square

164

12392

Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

Tags vectors, matlab 101

11932

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

9879

Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

9844

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets, poor_test_suite

9839

Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

Tags matlab 101, siam

6829

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

Created by: Cody Team

Tags easy, matrices

6785

Problem 9. Who Has the Most Change?

Created by: Cody Team

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

6728

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

Created by: Cody Team

Tags 3n+1, sample

6174

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

5835

Problem 20. Summing digits

Created by: Cody Team

Tags strings, sum

5706

Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

4600

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

Created by: Cody Team

Tags sorting, basic matlab

4328

Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

4108

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

3895

Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

3818

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

Created by: Cody Team

Tags vectors

3752

Problem 94. Target sorting

Created by: Cody Team

Tags sorting, matlab

3378

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

Created by: Cody Team

Tags regexp, diff, strings

3373

Problem 29. Nearest Numbers

Created by: Cody Team

Tags vectors, distance

3241

Problem 41. Cell joiner

Created by: Cody Team

Tags strings, matlab

3119

Problem 13. Remove all the consonants

Created by: Cody Team

Tags regexp, basics

3080

Problem 37. Pascal's Triangle

Created by: Cody Team

Tags math, combinatorics

2980

Problem 34. Binary numbers

Created by: Cody Team

Tags matlab

2501

Problem 27. Pangrams!

Created by: Cody Team

Tags strings

2487

Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

2402

Problem 42. Find the alphabetic word product

Created by: Cody Team

Tags matlab

2322

Problem 48. Making change

Created by: Cody Team

Tags money

2197

Problem 46. Which doors are open?

Created by: Cody Team

Tags matlab, iteration

2184

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

Created by: Cody Team

Tags matlab

2018

Problem 72. Interpolator

Created by: Cody Team

Tags interpolation

1966

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

1901

Problem 35. Quote Doubler

Created by: Cody Team

Tags regexp, strings, quotes

1836

Problem 76. De-dupe

Created by: Cody Team

Tags matlab

1800

Problem 62. Elapsed Time

Created by: Cody Team

Tags time

1727

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

1629

Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

1601

Problem 59. Pattern matching

Created by: Cody Team

Tags indexing

1600

Problem 38. Return a list sorted by number of occurrences

Created by: Cody Team

Tags vectors, sorting

1504

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

1422

Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

1399

1 – 50 of 94

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