arvid Martens

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Problem 44360. Pentagonal Numbers

Created by: goc3

Tags series, number, sequence

3

Solutions

45

Size

3

Solutions

45

Size

Problem 2736. Pernicious Anniversary Problem

Created by: Jan Orwat

Tags easy, sequences, oeis

4

Solutions

19

Size

4

Solutions

19

Size

Problem 44387. Birthday cake

Created by: Matthew Eicholtz

Tags geometry, cody5:hard

2

Solutions

145

Size

2

Solutions

145

Size

Problem 44340. Recaman Sequence - III

Created by: Mehmet OZC

Tags cody5, recaman sequence

1

Solution

107

Size

1

Solution

107

Size

Problem 44382. Parse me a Lisp

Created by: @bmtran (Bryant Tran)

Tags lisp, parse, cody5

3

Solutions

165

Size

3

Solutions

165

Size

Problem 44347. Ned's queens

Created by: HH

Tags contest, cody5

1

Solution

180

Size

1

Solution

180

Size

Problem 44367. Inscribed Pentagon? 2

Created by: goc3

Tags geometry, circle, radius

7

Solutions

94

Size

7

Solutions

94

Size

Problem 44386. Circumscribed Pentagon?

Created by: goc3

Tags geometry, circle, circumscribe

2

Solutions

110

Size

2

Solutions

110

Size

Problem 44343. Pair Primes

Created by: Mehmet OZC

Tags integers, prime numbers, cody5

1

Solution

304

Size

1

Solution

304

Size

Problem 44341. Hexagonal numbers on a spiral matrix

Created by: Mehmet OZC

Tags big integer, cody5, hexagonal numbers

1

Solution

44

Size

1

Solution

44

Size

Problem 44381. Cache me Outside

Created by: @bmtran (Bryant Tran)

Tags cody5, memoize

1

Solution

12

Size

1

Solution

12

Size

Problem 44364. Is this a valid Tic Tac Toe State?

Created by: Doug Hull

Tags cody5

1

Solution

118

Size

1

Solution

118

Size

Problem 44310. Digit concentration in Champernowne's constant

Created by: Mehmet OZC

Tags cody5, champernowne's constant, big number

1

Solution

78

Size

1

Solution

78

Size

Problem 44353. Group-wise Euclidean distance

Created by: Peng Liu

Tags speed, cody5

1

Solution

59

Size

1

Solution

59

Size

Problem 44365. An asteroid and a spacecraft

Created by: AMITAVA BISWAS

Tags projectile, mechanics, cody5

1

Solution

107

Size

1

Solution

107

Size

Problem 44337. Sums of Distinct Powers

Created by: James

Tags binary, cody5, distinct powers

6

Solutions

83

Size

6

Solutions

83

Size

Problem 44359. 5th Time's a Charm

Created by: goc3

Tags approximation, cody5, five

3

Solutions

40

Size

3

Solutions

40

Size

"Cody" * 5 == "CodyCodyCodyCodyCody"

Created by: Peng Liu

Tags multiplication, string, cody5

4

Solutions

51

Size

4

Solutions

51

Size

Problem 281. Acid and water

Created by: AMITAVA BISWAS

Tags cody5, exponential decay, fluid mixture

3

Solutions

20

Size

3

Solutions

20

Size

Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

Tags fibonacci, cody5, big number

1

Solution

14

Size

1

Solution

14

Size

Problem 44344. The 5th Root

Created by: goc3

Tags root, power, cody5

2

Solutions

25

Size

2

Solutions

25

Size

Problem 361. Energy of a photon

Created by: AMITAVA BISWAS

Tags physics, frequency, energy

3

Solutions

12

Size

3

Solutions

12

Size

Problem 564. How to subtract?

Created by: AMITAVA BISWAS

Tags addition, cody5, X-Y

6

Solutions

21

Size

6

Solutions

21

Size

Problem 1084. Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15, poor_problem_statement

2

Solutions

52

Size

2

Solutions

52

Size

Problem 1946. Fibonacci-Sum of Squares

Created by: Chris Cleveland

Tags fibonacci, sum of squares

4

Solutions

67

Size

4

Solutions

67

Size

Problem 434. Return the Fibonacci Sequence

Created by: Matt Fig

Tags fibonacci

2

Solutions

44

Size

2

Solutions

44

Size

Problem 1323. Alternating sum

Created by: Tim

Tags alternating sum

1

Solution

25

Size

1

Solution

25

Size

Problem 232. Project Euler: Problem 2, Sum of even Fibonacci

Created by: Cody Team

Tags projecteuler, fibonacci

4

Solutions

59

Size

4

Solutions

59

Size

Problem 240. Project Euler: Problem 6, Natural numbers, squares and sums.

Created by: Doug Hull

Tags projecteuler

2

Solutions

35

Size

2

Solutions

35

Size

Problem 753. Solitaire Cipher

Created by: Doug Hull

Tags asee, poor_test_suite

25

Solutions

270

Size

25

Solutions

270

Size

Problem 659. How long is the longest prime diagonal?

Created by: Ned Gulley

Tags primes, spiral, diagonal

3

Solutions

136

Size

3

Solutions

136

Size

Problem 660. Find a subset that divides the vector into equal halves

Created by: Ned Gulley

Tags vector, asee, summation

5

Solutions

102

Size

5

Solutions

102

Size

Problem 658. Find the biggest empty box

Created by: Ned Gulley

Tags asee

4

Solutions

83

Size

4

Solutions

83

Size

Problem 661. Spot the outlier

Created by: Ned Gulley

Tags asee, lines, points

14

Solutions

84

Size

14

Solutions

84

Size

Problem 722. Make a run-length companion vector

Created by: Ned Gulley

Tags vector, asee, best

3

Solutions

50

Size

3

Solutions

50

Size

Problem 730. How many trades represent all the profit?

Created by: Doug Hull

Tags vector, asee, summation

3

Solutions

22

Size

3

Solutions

22

Size

Problem 729. Flag largest magnitude swings as they occur

Created by: Doug Hull

Tags asee, peaks, change

5

Solutions

84

Size

5

Solutions

84

Size

Problem 731. Given a window, how many subsets of a vector sum positive

Created by: Doug Hull

Tags asee, good

1

Solution

39

Size

1

Solution

39

Size

Problem 751. Implement simple rotation cypher

Created by: Doug Hull

Tags encoding, cipher, asee

3

Solutions

22

Size

3

Solutions

22

Size

Problem 1215. Diophantine Equations (Inspired by Project Euler, problem 66)

Created by: James

Tags projecteuler, diophantine, pell equation

5

Solutions

223

Size

5

Solutions

223

Size

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

Created by: Dimitris Kaliakmanis

Tags math, basic matlab

1

Solution

22

Size

1

Solution

22

Size

Problem 8. Add two numbers

Created by: Cody Team

Tags matlab 101, basic matlab, basics

1

Solution

13

Size

1

Solution

13

Size

Problem 897. Finite Continued Fraction

Created by: AlfredLeMark

Tags fractions

4

Solutions

62

Size

4

Solutions

62

Size

Problem 1476. Radial Zernike polynomials

Created by: Yaroslav

Tags polynomial

5

Solutions

111

Size

5

Solutions

111

Size

Problem 1465. Generalized Laguerre polynomials

Created by: Yaroslav

Tags polynomial

2

Solutions

61

Size

2

Solutions

61

Size

Problem 734. Ackermann's Function

Created by: Richard Zapor

Tags recursion, ackermann, rozsa peter

5

Solutions

64

Size

5

Solutions

64

Size

Problem 1473. Legendre polynomials

Created by: Yaroslav

Tags polynomial

3

Solutions

63

Size

3

Solutions

63

Size

Problem 1475. Chebyshev polynomials of the 2nd Kind

Created by: Yaroslav

Tags polynomial

1

Solution

77

Size

1

Solution

77

Size

Problem 1474. Chebyshev polynomials of the 1st Kind

Created by: Yaroslav

Tags polynomial

3

Solutions

83

Size

3

Solutions

83

Size

Problem 1464. Laguerre polynomials

Created by: Yaroslav

Tags polynomial

3

Solutions

40

Size

3

Solutions

40

Size

1 – 50 of 82