# Problems

1 – 24 of 24
 Problem Title Likes Solvers Difficulty

#### Problem 8. Add two numbers

Created by: Cody Team

207

35042

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

Created by: Cody Team

Tags basic, test, basics

184

43023

#### Problem 1545. Return area of square

Created by: Marek Kuklis

50

9812

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

Created by: Cody Team

207

40770

#### Problem 2015. Length of the hypotenuse

Created by: Tanya Morton

45

9786

#### Problem 641. Make a random, non-repeating vector.

Created by: Doug Hull

31

6174

#### Problem 233. Reverse the vector

Created by: Vishwanathan Iyer

37

10218

#### Problem 262. Swap the input arguments

Created by: Steve Eddins

46

7828

#### Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle, nice

114

22800

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

Created by: Dimitris Kaliakmanis

70

11920

60

9945

#### Problem 174. Roll the Dice!

Created by: @bmtran (Bryant Tran)

46

7297

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

Created by: Cody Team

161

27030

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

Created by: Nichlas

45

8153

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

Created by: @bmtran (Bryant Tran)

30

6840

#### Problem 645. Getting the indices from a vector

Created by: Doug Hull

45

6589

#### Problem 7. Column Removal

Created by: Cody Team

123

21397

#### Problem 1087. Magic is simple (for beginners)

Created by: Jean-Marie Sainthillier

37

6039

#### Problem 568. Number of 1s in a binary string

Created by: Srivardhini

Tags binary, sum

52

6045

#### Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

92

13578

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

Created by: Cody Team

89

16561

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

Created by: Cody Team

115

16339

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

Created by: Binbin Qi

Tags zeros, for, ones

100

7616

#### Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets

139

14517

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