Cody

# Problems

1 – 50 of 4,360
 Problem Title Likes Solvers Difficulty

#### Problem 1. Times 2 - START HERE

Created by: Cody Team

Tags intro, math, easy

361

58185

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

Created by: Cody Team

Tags basic, basics, colon

138

37063

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

Created by: Cody Team

132

33481

#### Problem 8. Add two numbers

Created by: Cody Team

133

29248

#### Problem 6. Select every other element of a vector

Created by: Cody Team

112

21490

#### Problem 26. Determine if input is odd

Created by: Cody Team

105

19723

#### Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle, nice

91

18388

#### Problem 7. Column Removal

Created by: Cody Team

94

18004

#### Problem 167. Pizza!

Created by: the cyclist

Tags fun, pizza, good

264

17577

#### Problem 149. Is my wife right?

Created by: the cyclist

Tags easy, silly, fun

251

15565

#### Problem 17. Find all elements less than 0 or greater than 10 and replace them with NaN

Created by: Cody Team

57

13292

#### Problem 19. Swap the first and last columns

Created by: Cody Team

65

13109

#### Problem 4. Make a checkerboard matrix

Created by: Cody Team

170

12690

#### Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

79

12626

#### Problem 23. Finding Perfect Squares

Created by: Cody Team

96

10545

#### Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

67

10441

#### Problem 12. Fibonacci sequence

Created by: Cody Team

80

10126

#### Problem 44943. Calculate Amount of Cake Frosting

Created by: Pooja Lalan

65

9143

#### Problem 189. Sum all integers from 1 to 2^n

Created by: Dimitris Kaliakmanis

49

9034

#### Problem 44944. Convert from Fahrenheit to Celsius

Created by: Pooja Lalan

38

8675

#### Problem 233. Reverse the vector

Created by: Vishwanathan Iyer

23

7032

#### Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

66

6949

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

Created by: Cody Team

Tags easy, matrices

38

6923

#### Problem 9. Who Has the Most Change?

Created by: Cody Team

63

6870

Created by: Will

31

6354

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

Created by: Cody Team

Tags 3n+1, sample

66

6310

#### Problem 44947. Find the Oldest Person in a Room

Created by: Pooja Lalan

51

6296

#### Problem 2015. Length of the hypotenuse

Created by: Tanya Morton

25

6209

#### Problem 11. Back and Forth Rows

Created by: Cody Team

Tags matrices

51

6159

24

5939

#### Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

32

5932

#### Problem 20. Summing digits

Created by: Cody Team

Tags strings, sum

30

5836

#### Problem 1545. Return area of square

Created by: Marek Kuklis

30

5822

#### Problem 838. Check if number exists in vector

Created by: Nichlas

27

5116

#### Problem 262. Swap the input arguments

Created by: Steve Eddins

27

4906

#### Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

22

4681

#### Problem 247. Arrange Vector in descending order

Created by: Vishwanathan Iyer

24

4553

#### Problem 174. Roll the Dice!

Created by: @bmtran (Bryant Tran)

28

4522

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

Created by: Cody Team

20

4397

#### Problem 1035. Generate a vector like 1,2,2,3,3,3,4,4,4,4

Created by: Binbin Qi

Tags zeros, for, ones

61

4278

#### Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

79

4200

#### Problem 44946. Solve a System of Linear Equations

Created by: Pooja Lalan

30

4197

#### Problem 624. Get the length of a given vector

Created by: Yudong Zhang

16

4040

#### Problem 135. Inner product of two vectors

Created by: AMITAVA BISWAS

22

4033

#### Problem 109. Check if sorted

Created by: AMITAVA BISWAS

15

4012

#### Problem 649. Return the first and last characters of a character array

Created by: @bmtran (Bryant Tran)

16

4005

#### Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

53

3967

#### Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

18

3892

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

Created by: Cody Team

Tags vectors

23

3840

#### Problem 1658. Simple equation: Annual salary

Created by: matlab.zyante.com

Tags easy, basics, salary

17

3827

1 – 50 of 4,360