Hong Son

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Problem 194. Clockwise or Counterclockwise

Created by: Alfonso Nieto-Castanon

Tags math, polygon

2

Solutions

67

Size

2

Solutions

67

Size

Problem 392. Clock Hand Angle 1

Created by: @bmtran (Bryant Tran)

Tags math, clocks, fractions

1

Solution

89

Size

1

Solution

89

Size

Problem 330. Circumscribed circles

Created by: Alan Chalker

Tags geometry

1

Solution

52

Size

1

Solution

52

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Problem 636. Spherical radius given four points

Created by: Richard Zapor

Tags geometry linear algebra, non-linear

1

Solution

66

Size

1

Solution

66

Size

Problem 336. Similar Triangles - find the height of the tree

Created by: Bruce Raine

Tags multiplication, arithmetic, geometry

1

Solution

19

Size

1

Solution

19

Size

Problem 198. Are you in or are you out?

Created by: the cyclist

Tags polygon, basics, poor_test_suite

1

Solution

18

Size

1

Solution

18

Size

Problem 417. Covering area

Created by: Nikolai

Tags area, triangulation, geometrics

2

Solutions

32

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2

Solutions

32

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Problem 381. Angle between two vectors

Created by: Aurelien Queffurust

Tags vectors, geometry, angle

1

Solution

35

Size

1

Solution

35

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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

1

Solution

34

Size

1

Solution

34

Size

Problem 554. Is the Point in a Circle?

Created by: Kuifeng

Tags circle, poor_test_suite, poor_problem_statement

2

Solutions

58

Size

2

Solutions

58

Size

Problem 635. Angle between Two Vectors

Created by: Richard Zapor

Tags vectors, geometry, vector calculus

2

Solutions

34

Size

2

Solutions

34

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Problem 193. Smallest distance between a point and a rectangle

Created by: Alfonso Nieto-Castanon

Tags math, distance

2

Solutions

130

Size

2

Solutions

130

Size

Problem 190. Great Circle Distance

Created by: @bmtran (Bryant Tran)

Tags distance, great circle, azimuth

1

Solution

70

Size

1

Solution

70

Size

Problem 637. Volume of a Parallelepiped

Created by: Richard Zapor

Tags vector operators dot cross

1

Solution

25

Size

1

Solution

25

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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

3

Solutions

30

Size

3

Solutions

30

Size

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

Created by: Reza Ahmadzadeh

Tags geometry, algebra

1

Solution

40

Size

1

Solution

40

Size

Problem 1072. Television Screen Dimensions

Created by: @bmtran (Bryant Tran)

Tags plus15, aspect ratio, television

4

Solutions

56

Size

4

Solutions

56

Size

Problem 164. Right and wrong

Created by: the cyclist

Tags triangle

2

Solutions

62

Size

2

Solutions

62

Size

Problem 1722. Find the next prime number

Created by: Chris E.

Tags prime

1

Solution

51

Size

1

Solution

51

Size

Problem 1567. Make a vector of prime numbers

Created by: Marek Kuklis

Tags matlab

1

Solution

22

Size

1

Solution

22

Size

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

1

Solution

46

Size

1

Solution

46

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Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

3

Solutions

45

Size

3

Solutions

45

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Problem 981. Find nearest prime number less than input number

Created by: Reza Ahmadzadeh

Tags math, prime numbers

1

Solution

32

Size

1

Solution

32

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Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

3

Solutions

29

Size

3

Solutions

29

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Problem 1095. Circular Primes (based on Project Euler, problem 35)

Created by: James

Tags primes, projecteuler, circular reasoning

1

Solution

118

Size

1

Solution

118

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Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

1

Solution

70

Size

1

Solution

70

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Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

2

Solutions

57

Size

2

Solutions

57

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Problem 365. Numbers with prime factors 2, 3 and 5.

Created by: elias GR

Tags primes, factors

1

Solution

68

Size

1

Solution

68

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Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

1

Solution

239

Size

1

Solution

239

Size

Problem 191. Proper Factors

Created by: @bmtran (Bryant Tran)

Tags proper factors

1

Solution

46

Size

1

Solution

46

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Problem 1066. Multiples of a Number in a Given Range

Created by: @bmtran (Bryant Tran)

Tags factor, plus15, colon

2

Solutions

51

Size

2

Solutions

51

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

3

Solutions

98

Size

3

Solutions

98

Size

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

1

Solution

41

Size

1

Solution

41

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Problem 8057. (Linear) Recurrence Equations - Generalised Fibonacci-like sequences

Created by: Jan Orwat

Tags sequences, fibonacci, recurrence

1

Solution

117

Size

1

Solution

117

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Problem 42340. Fibonacci Decomposition

Created by: Ned Gulley

Tags fibonacci

1

Solution

99

Size

1

Solution

99

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Problem 44481. How many Fibonacci numbers?

Created by: Bob Tivnan

Tags integers, fibonacci, #easy

1

Solution

65

Size

1

Solution

65

Size

Problem 1946. Fibonacci-Sum of Squares

Created by: Chris Cleveland

Tags fibonacci, sum of squares

1

Solution

65

Size

1

Solution

65

Size

Problem 752. Is X a Fibonacci Matrix?

Created by: Sean de Wolski

Tags fibonacci, Tic...Toc...

2

Solutions

211

Size

2

Solutions

211

Size

Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

Tags fibonacci, cody5, big number

2

Solutions

14

Size

2

Solutions

14

Size

Problem 3092. Return fibonacci sequence do not use loop and condition

Created by: Binbin Qi

Tags loop, fibonacci, condition

1

Solution

30

Size

1

Solution

30

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Problem 43016. Find the next Fibonacci number

Created by: Steven Van Vaerenbergh

Tags fibonacci

1

Solution

75

Size

1

Solution

75

Size

Problem 2423. Integer Sequence - II : New Fibonacci

Created by: rifat

Tags fibonacci, integer sequence

1

Solution

48

Size

1

Solution

48

Size

Problem 434. Return the Fibonacci Sequence

Created by: Matt Fig

Tags fibonacci

1

Solution

47

Size

1

Solution

47

Size

Problem 2129. Sum of odd numbers in a matrix

Created by: Koteswar Rao Jerripothula

Tags matrix manipulation

1

Solution

19

Size

1

Solution

19

Size

Problem 2145. Find the index of n in magic(n)

Created by: Koteswar Rao Jerripothula

Tags magic, matrix

1

Solution

25

Size

1

Solution

25

Size

Problem 2153. Replace pattern 0 1 0 and 1 0 1

Created by: Anette

Tags pattern match

1

Solution

85

Size

1

Solution

85

Size

Problem 2228. Time Expansion

Created by: Abdullah Caliskan

Tags vector, signal processing

1

Solution

37

Size

1

Solution

37

Size

Problem 2200. counting groups!

Created by: Chris E.

Tags rapid sorting

3

Solutions

46

Size

3

Solutions

46

Size

Problem 2235. Back to basics - mean of corner elements of a matrix

Created by: Swapnali Gujar

Tags mean, basic matlab, array indexing

3

Solutions

43

Size

3

Solutions

43

Size

Problem 2476. Max Change in Consecutive Elements

Created by: Chandan singh

Tags vectors change

1

Solution

29

Size

1

Solution

29

Size

1 – 50 of 479