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1 – 50 of 213

Problem 77. Clean the List of Names

Created by: Cody Team

Tags strings

6

Solutions

36

Size

6

Solutions

36

Size

Problem 47. Extract leading non-zero digit

Created by: Cody Team

Tags math, maths, mathematics

1

Solution

53

Size

1

Solution

53

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

23

Size

1

Solution

23

Size

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

Created by: Cody Team

Tags easy, matrices

2

Solutions

26

Size

2

Solutions

26

Size

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

5

Solutions

34

Size

5

Solutions

34

Size

Problem 49. Sums with Excluded Digits

Created by: Cody Team

Tags strings

1

Solution

37

Size

1

Solution

37

Size

Problem 94. Target sorting

Created by: Cody Team

Tags sorting, matlab

1

Solution

51

Size

1

Solution

51

Size

Problem 20. Summing digits

Created by: Cody Team

Tags strings, sum

1

Solution

19

Size

1

Solution

19

Size

Problem 53. Duplicates

Created by: Cody Team

Tags strings, sets, matlab

1

Solution

54

Size

1

Solution

54

Size

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

1

Solution

52

Size

1

Solution

52

Size

Problem 91. Get the area codes from a list of phone numbers

Created by: Cody Team

Tags regexp

1

Solution

113

Size

1

Solution

113

Size

Problem 55. Counting Sequence

Created by: Cody Team

Tags encoding

5

Solutions

73

Size

5

Solutions

73

Size

Problem 57. Summing Digits within Text

Created by: Cody Team

Tags strings

1

Solution

63

Size

1

Solution

63

Size

Problem 62. Elapsed Time

Created by: Cody Team

Tags time

2

Solutions

40

Size

2

Solutions

40

Size

Problem 61. Find state names that end with the letter A

Created by: Cody Team

Tags regexp, states

1

Solution

34

Size

1

Solution

34

Size

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

1

Solution

60

Size

1

Solution

60

Size

Problem 66. Find the two-word state names

Created by: Cody Team

Tags regexp, states

1

Solution

23

Size

1

Solution

23

Size

Problem 68. Kaprekar Steps

Created by: Cody Team

Tags matlab, lookup table, poor_problem_statement

4

Solutions

190

Size

4

Solutions

190

Size

Problem 69. Find the peak 3n+1 sequence value

Created by: Cody Team

Tags 3n+1

2

Solutions

105

Size

2

Solutions

105

Size

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

Created by: Cody Team

Tags 3n+1, sample

1

Solution

71

Size

1

Solution

71

Size

Problem 92. Find state names that start with the letter N

Created by: Cody Team

Tags regexp, states

1

Solution

34

Size

1

Solution

34

Size

Problem 71. Read a column of numbers and interpolate missing data

Created by: Cody Team

Tags data cleaning, average

1

Solution

114

Size

1

Solution

114

Size

Problem 67. Find common elements in matrix rows

Created by: Cody Team

Tags matlab

1

Solution

53

Size

1

Solution

53

Size

Problem 81. Mandelbrot Numbers

Created by: Cody Team

Tags matlab, fractals

3

Solutions

67

Size

3

Solutions

67

Size

Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

3

Solutions

68

Size

3

Solutions

68

Size

Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

2

Solutions

67

Size

2

Solutions

67

Size

Problem 185. Data decompression

Created by: Tomasz

Tags strings, prefix free codes, bit manipulation

2

Solutions

225

Size

2

Solutions

225

Size

Problem 733. Extract Built In Functions and Toolbox Functions from String or Function Handle

Created by: Richard Zapor

Tags regexp, match, unique

20

Solutions

170

Size

20

Solutions

170

Size

Problem 1383. Count letters occurence in text, specific to words with a given length.

Created by: Cedric

Tags regexp, letters, counts

4

Solutions

69

Size

4

Solutions

69

Size

Problem 70. Alphabetize by last name

Created by: Cody Team

Tags regexp, sorting

1

Solution

88

Size

1

Solution

88

Size

Problem 2595. Polite numbers. Politeness.

Created by: Jan Orwat

Tags number theory, oeis

3

Solutions

95

Size

3

Solutions

95

Size

Problem 2056. Is this number Munchhausen?

Created by: Ted

Tags math, narcissistic number, munchhausen

3

Solutions

42

Size

3

Solutions

42

Size

Problem 2248. Bell Number calculator

Created by: robin

Tags sets, partition

1

Solution

31

Size

1

Solution

31

Size

Problem 2733. Evil Number

Created by: Jan Orwat

Tags easy, number theory, oeis

1

Solution

21

Size

1

Solution

21

Size

Problem 450. What is the distance from point P(x,y) to the line Ax + By + C = 0?

Created by: Bruce Raine

Tags distance, pythagoras, orthogonal

3

Solutions

35

Size

3

Solutions

35

Size

Problem 554. Is the Point in a Circle?

Created by: Kuifeng

Tags circle, poor_test_suite, poor_problem_statement

1

Solution

38

Size

1

Solution

38

Size

Problem 635. Angle between Two Vectors

Created by: Richard Zapor

Tags vectors, geometry, vector calculus

1

Solution

24

Size

1

Solution

24

Size

Problem 768. Are all the three given point in the same line?

Created by: Reza Ahmadzadeh

Tags geometry, algebra

1

Solution

35

Size

1

Solution

35

Size

Problem 833. Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed

Created by: Richard Zapor

Tags right-angled triangles, non standard methods, right-angle triangles

6

Solutions

41

Size

6

Solutions

41

Size

Problem 1072. Television Screen Dimensions

Created by: @bmtran (Bryant Tran)

Tags plus15, aspect ratio, television

2

Solutions

41

Size

2

Solutions

41

Size

Problem 2690. Armstrong Number

Created by: VIVEK RUHELA

Tags arithmetic, basic matlab

2

Solutions

35

Size

2

Solutions

35

Size

Problem 2734. N-th Odious

Created by: Jan Orwat

Tags number theory, oeis, pop series

1

Solution

44

Size

1

Solution

44

Size

Problem 2819. Find the 9's Complement

Created by: Pritesh Shah

Tags matlab

1

Solution

27

Size

1

Solution

27

Size

Problem 44342. Spot the First Occurrence of 5

Created by: Peng Liu

Tags cody5

2

Solutions

105

Size

2

Solutions

105

Size

Problem 44375. Missing five

Created by: Alfonso Nieto-Castanon

Tags cody5

1

Solution

46

Size

1

Solution

46

Size

Problem 44369. Circle/Pentagon Overlap

Created by: goc3

Tags geometry, circle, radius

2

Solutions

29

Size

2

Solutions

29

Size

Problem 44370. Octoberfest festival

Created by: Andriy Kavetsky

Tags fibonacci, cody5

1

Solution

50

Size

1

Solution

50

Size

Problem 44368. Inscribed Pentagon?

Created by: goc3

Tags geometry, circle, radius

1

Solution

59

Size

1

Solution

59

Size

Problem 44363. Is this is a Tic Tac Toe X Win?

Created by: Doug Hull

Tags cody5, noughts and crosses

1

Solution

43

Size

1

Solution

43

Size

Problem 44358. I Plead the Fifth

Created by: goc3

Tags regexp, strings, string

3

Solutions

42

Size

3

Solutions

42

Size

1 – 50 of 213