Cody

# Cody Challenge

Curated by : Cody Team

Basic to advanced MATLAB problems created by the Cody Team at MathWorks. A great starting place for new Cody players!

Cody Challenge Master

+50 points

Problem Title
Likes
Solvers

#### Times 2 - START HERE

Created by: Cody Team

Tags intro, math, basics

104

29443

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

Created by: Cody Team

Tags basic, colon, x=1:10

68

23744

#### Find the sum of all the numbers of the input vector

Created by: Cody Team

46

20164

Created by: Cody Team

39

17622

#### Determine if input is odd

Created by: Cody Team

Tags easy

71

14283

#### Select every other element of a vector

Created by: Cody Team

49

13008

#### Column Removal

Created by: Cody Team

55

11525

#### Triangle Numbers

Created by: Cody Team

Tags math

42

11171

#### Find all elements less than 0 or greater than 10 and replace them with NaN

Created by: Cody Team

33

9729

#### Make a checkerboard matrix

Created by: Cody Team

132

8701

#### Swap the first and last columns

Created by: Cody Team

27

7783

#### Determine whether a vector is monotonically increasing

Created by: Cody Team

38

7237

#### Fibonacci sequence

Created by: Cody Team

51

6765

#### Create times-tables

Created by: Cody Team

Tags matrices

37

5945

#### Finding Perfect Squares

Created by: Cody Team

35

5373

#### Remove any row in which a NaN appears

Created by: Cody Team

42

4917

#### Find the numeric mean of the prime numbers in a matrix.

Created by: Cody Team

22

4859

#### Back and Forth Rows

Created by: Cody Team

Tags matrices

42

4498

#### Who Has the Most Change?

Created by: Cody Team

45

4478

#### Most nonzero elements in row

Created by: Cody Team

Tags matrices

25

4337

#### Return the 3n+1 sequence for n

Created by: Cody Team

Tags 3n+1, sample

44

4184

#### Summing digits

Created by: Cody Team

Tags strings

22

3935

#### Remove the vowels

Created by: Cody Team

Tags regexp, siam

12

3195

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

Created by: Cody Team

13

3127

#### Which values occur exactly three times?

Created by: Cody Team

Tags search

14

2730

#### Bullseye Matrix

Created by: Cody Team

Tags matrices

45

2652

#### The Goldbach Conjecture

Created by: Cody Team

Tags primes

41

2640

#### Return the largest number that is adjacent to a zero

Created by: Cody Team

Tags vectors

16

2488

#### Target sorting

Created by: Cody Team

Tags matlab, sorting

19

2431

#### Nearest Numbers

Created by: Cody Team

23

2161

#### Pascal's Triangle

Created by: Cody Team

12

2000

#### Remove all the consonants

Created by: Cody Team

Tags regexp, basics

7

1923

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

Created by: Cody Team

28

1867

#### Cell joiner

Created by: Cody Team

Tags matlab, strings

10

1803

#### Find the alphabetic word product

Created by: Cody Team

Tags matlab

6

1663

#### Pangrams!

Created by: Cody Team

Tags strings

15

1507

#### Binary numbers

Created by: Cody Team

Tags matlab

16

1498

#### Counting Money

Created by: Cody Team

Tags regexp, strings

5

1425

#### Which doors are open?

Created by: Cody Team

16

1365

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

Created by: Cody Team

Tags matlab

10

1364

#### Balanced number

Created by: Cody Team

Tags matlab

14

1271

#### Making change

Created by: Cody Team

Tags money

9

1252

#### Quote Doubler

Created by: Cody Team

5

1234

#### De-dupe

Created by: Cody Team

Tags matlab

8

1192

#### Elapsed Time

Created by: Cody Team

Tags time

5

1064

#### Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

8

1051

#### Return a list sorted by number of occurrences

Created by: Cody Team

9

976

#### Trimming Spaces

Created by: Cody Team

3

923

#### Make a Palindrome Number

Created by: Cody Team

Tags strings

8

889

#### Pattern matching

Created by: Cody Team

Tags indexing

7

867

#### Recent Activity

 2 hours and 2 minutes ago 3 hours and 5 minutes ago 3 hours and 9 minutes ago 4 hours and 16 minutes ago 4 hours and 23 minutes ago