David Martinez

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1 – 48 of 48

Problem 49. Sums with Excluded Digits

Created by: Cody Team

Tags strings

1

Solution

51

Size

1

Solution

51

Size

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

Created by: Cody Team

Tags regexp, diff, strings

1

Solution

109

Size

1

Solution

109

Size

Problem 48. Making change

Created by: Cody Team

Tags money, subs

1

Solution

64

Size

1

Solution

64

Size

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

1

Solution

69

Size

1

Solution

69

Size

Problem 68. Kaprekar Steps

Created by: Cody Team

Tags matlab, lookup table, poor_problem_statement

1

Solution

104

Size

1

Solution

104

Size

Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

1

Solution

91

Size

1

Solution

91

Size

Problem 43. Subset Sum

Created by: Cody Team

Tags matlab

1

Solution

123

Size

1

Solution

123

Size

Problem 45440. Create a vector of the first n odd numbers (★)

Created by: Anirban Pal

Tags vectors, odd numbers

1

Solution

22

Size

1

Solution

22

Size

Problem 45445. Create a vector of the first n natural numbers (★)

Created by: Anirban Pal

Tags basic matlab

1

Solution

16

Size

1

Solution

16

Size

Problem 45448. Vector raised to a power, element-wise (★)

Created by: Anirban Pal

Tags basic matlab

2

Solutions

15

Size

2

Solutions

15

Size

Problem 45447. Element-wise vector product (★)

Created by: Anirban Pal

Tags basic matlab

4

Solutions

15

Size

4

Solutions

15

Size

Problem 45443. Generate n equally spaced "intervals" between -x and x (★)

Created by: Anirban Pal

Tags basic matlab

1

Solution

18

Size

1

Solution

18

Size

Problem 45446. Create logarithmically spaced values (★)

Created by: Anirban Pal

Tags basic matlab, poor_test_suite

1

Solution

16

Size

1

Solution

16

Size

Problem 45872. Remove the row average (★★★)

Created by: Anirban Pal

Tags matrix

1

Solution

19

Size

1

Solution

19

Size

Problem 45857. Doubling elements in a vector (★★)

Created by: Anirban Pal

Tags vectors

1

Solution

13

Size

1

Solution

13

Size

Problem 45827. Sum of elements in a vector (★)

Created by: Anirban Pal

Tags vector

1

Solution

12

Size

1

Solution

12

Size

Problem 45845. Create times-tables (★★★)

Created by: Anirban Pal

Tags matrix

1

Solution

16

Size

1

Solution

16

Size

Problem 45836. Select every other element of a vector (★★)

Created by: Anirban Pal

Tags vector manipulation

1

Solution

17

Size

1

Solution

17

Size

Problem 45444. Create a vector with n repeated values of a number x (★★)

Created by: Anirban Pal

Tags vectors

1

Solution

16

Size

1

Solution

16

Size

Problem 45866. Average of corner elements of a matrix (★★)

Created by: Anirban Pal

Tags matrix indexing

1

Solution

34

Size

1

Solution

34

Size

Problem 45842. Swap the first and last columns (★★)

Created by: Anirban Pal

Tags matrix manipulation

1

Solution

28

Size

1

Solution

28

Size

Problem 45441. Create a vector of n alternating ones and zeros (★★)

Created by: Anirban Pal

Tags vectors

1

Solution

35

Size

1

Solution

35

Size

Problem 45833. Triangle Numbers (★★)

Created by: Anirban Pal

Tags vector

1

Solution

18

Size

1

Solution

18

Size

Problem 45758. Mo money, mo math 1! (★★★)

Created by: Anirban Pal

Tags indexing, matrix

1

Solution

29

Size

1

Solution

29

Size

Problem 45839. Column Removal (★★★)

Created by: Anirban Pal

Tags matrix manipulation

1

Solution

19

Size

1

Solution

19

Size

Problem 45863. Generate a vector which contains a pyramid pattern (★★★★)

Created by: Anirban Pal

Tags vector, pyramid scheme

1

Solution

21

Size

1

Solution

21

Size

Problem 45821. Magnitude of a vector (★★★)

Created by: Anirban Pal

Tags vector

2

Solutions

27

Size

2

Solutions

27

Size

Problem 45824. Sum of elements of a vector (★★★)

Created by: Anirban Pal

Tags vector

1

Solution

21

Size

1

Solution

21

Size

Problem 45442. PEMDAS test (★★)

Created by: Anirban Pal

Tags pemdas

1

Solution

53

Size

1

Solution

53

Size

Problem 45830. Make a checkerboard matrix (★★★★★)

Created by: Anirban Pal

Tags matrix

3

Solutions

46

Size

3

Solutions

46

Size

Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

1

Solution

58

Size

1

Solution

58

Size

Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

2

Solutions

51

Size

2

Solutions

51

Size

Problem 38. Return a list sorted by number of occurrences

Created by: Cody Team

Tags vectors, sorting

2

Solutions

127

Size

2

Solutions

127

Size

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

Created by: Cody Team

Tags 3n+1, sample

1

Solution

69

Size

1

Solution

69

Size

Problem 20. Summing digits

Created by: Cody Team

Tags strings, sum

1

Solution

40

Size

1

Solution

40

Size

Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

2

Solutions

116

Size

2

Solutions

116

Size

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

Created by: Cody Team

Tags vectors

2

Solutions

128

Size

2

Solutions

128

Size

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

2

Solutions

77

Size

2

Solutions

77

Size

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

1

Solution

78

Size

1

Solution

78

Size

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

1

Solution

40

Size

1

Solution

40

Size

Problem 58. Tic Tac Toe FTW

Created by: Cody Team

Tags game, fun, tic tac toe

1

Solution

708

Size

1

Solution

708

Size

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

1

Solution

51

Size

1

Solution

51

Size

Problem 29. Nearest Numbers

Created by: Cody Team

Tags vectors, distance

1

Solution

109

Size

1

Solution

109

Size

Problem 26. Determine if input is odd

Created by: Cody Team

Tags easy, basic matlab, why matlab

1

Solution

26

Size

1

Solution

26

Size

Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

Tags matlab 101, siam

1

Solution

52

Size

1

Solution

52

Size

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets

1

Solution

56

Size

1

Solution

56

Size

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

Created by: Cody Team

Tags easy, matrices

1

Solution

48

Size

1

Solution

48

Size

Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

Tags vectors, matlab 101

1

Solution

50

Size

1

Solution

50

Size

1 – 48 of 48