Peter Cook

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Problem 281. Acid and water

Created by: AMITAVA BISWAS

Tags cody5, exponential decay, fluid mixture

1

Solution

45

Size

1

Solution

45

Size

Problem 44365. An asteroid and a spacecraft

Created by: AMITAVA BISWAS

Tags projectile, mechanics, cody5

2

Solutions

30

Size

2

Solutions

30

Size

Problem 44359. 5th Time's a Charm

Created by: goc3

Tags approximation, cody5, five

2

Solutions

39

Size

2

Solutions

39

Size

Problem 44337. Sums of Distinct Powers

Created by: James

Tags binary, cody5, distinct powers

2

Solutions

344

Size

2

Solutions

344

Size

Problem 44310. Digit concentration in Champernowne's constant

Created by: Mehmet OZC

Tags cody5, champernowne's constant, big number

1

Solution

36

Size

1

Solution

36

Size

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

Created by: Doug Hull

Tags cody5

1

Solution

200

Size

1

Solution

200

Size

Problem 44381. Cache me Outside

Created by: @bmtran (Bryant Tran)

Tags cody5, memoize

2

Solutions

12

Size

2

Solutions

12

Size

Problem 44341. Hexagonal numbers on a spiral matrix

Created by: Mehmet OZC

Tags big integer, cody5, hexagonal numbers

2

Solutions

153

Size

2

Solutions

153

Size

Problem 44343. Pair Primes

Created by: Mehmet OZC

Tags integers, prime numbers, cody5

1

Solution

693

Size

1

Solution

693

Size

Problem 44386. Circumscribed Pentagon?

Created by: goc3

Tags geometry, circle, circumscribe

1

Solution

196

Size

1

Solution

196

Size

Problem 44367. Inscribed Pentagon? 2

Created by: goc3

Tags geometry, circle, radius

1

Solution

168

Size

1

Solution

168

Size

Problem 44382. Parse me a Lisp

Created by: @bmtran (Bryant Tran)

Tags lisp, parse, cody5

1

Solution

274

Size

1

Solution

274

Size

Problem 44316. Pandigital Multiples of 11 (based on Project Euler 491)

Created by: James

Tags projecteuler, pandigital, cody5

1

Solution

205

Size

1

Solution

205

Size

Problem 44374. Tautology

Created by: Jan Orwat

Tags regular expressions, cody5

3

Solutions

536

Size

3

Solutions

536

Size

Problem 44347. Ned's queens

Created by: HH

Tags contest, cody5

1

Solution

396

Size

1

Solution

396

Size

Problem 44376. The sliding puzzle: 3D

Created by: HH

Tags puzzle, sliding, fifteen

2

Solutions

369

Size

2

Solutions

369

Size

Problem 44379. One track five lanes

Created by: Alfonso Nieto-Castanon

Tags cody5

1

Solution

365

Size

1

Solution

365

Size

Problem 44377. Five steps to enlightenment

Created by: Alfonso Nieto-Castanon

Tags indexing, logic, cody5

2

Solutions

227

Size

2

Solutions

227

Size

Problem 44387. Birthday cake

Created by: Matthew Eicholtz

Tags geometry, cody5:hard

1

Solution

142

Size

1

Solution

142

Size

Problem 44353. Group-wise Euclidean distance

Created by: Peng Liu

Tags speed, cody5

1

Solution

9

Size

1

Solution

9

Size

Problem 44378. Five-dimensional maze

Created by: @bmtran (Bryant Tran)

Tags maze, graph theory, multidimensional

2

Solutions

311

Size

2

Solutions

311

Size

"Cody" * 5 == "CodyCodyCodyCodyCody"

Created by: Peng Liu

Tags multiplication, string, cody5

3

Solutions

43

Size

3

Solutions

43

Size

Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

Tags fibonacci, cody5, big number

1

Solution

18

Size

1

Solution

18

Size

Problem 44344. The 5th Root

Created by: goc3

Tags root, power, cody5

1

Solution

29

Size

1

Solution

29

Size

Problem 44340. Recaman Sequence - III

Created by: Mehmet OZC

Tags cody5, recaman sequence

2

Solutions

101

Size

2

Solutions

101

Size

Problem 369. Basic electricity in a dry situation

Created by: AMITAVA BISWAS

Tags physics, current, cody5

2

Solutions

17

Size

2

Solutions

17

Size

Problem 44314. A Simple Tide Gauge with MATLAB

Created by: AMITAVA BISWAS

Tags ocean, prediction, regression

1

Solution

15

Size

1

Solution

15

Size

Problem 44370. Octoberfest festival

Created by: Andriy Kavetsky

Tags fibonacci, cody5

1

Solution

23

Size

1

Solution

23

Size

Problem 44315. Predicting life and death of a memory-less light bulb

Created by: AMITAVA BISWAS

Tags random, probability, decay

1

Solution

17

Size

1

Solution

17

Size

Problem 44372. Polarisation

Created by: Jan Orwat

Tags cody5, quantum, angles

1

Solution

20

Size

1

Solution

20

Size

Problem 44307. The glass half full

Created by: HH

Tags contest, cody5

2

Solutions

48

Size

2

Solutions

48

Size

Problem 44350. Breaking Out of the Matrix

Created by: James

Tags cody5, whoa, windowing

3

Solutions

78

Size

3

Solutions

78

Size

Problem 44380. ASCII Birthday Cake

Created by: @bmtran (Bryant Tran)

Tags art, birthday, ascii

1

Solution

173

Size

1

Solution

173

Size

Problem 44334. Sums of Multiple Pairs of Triangular Numbers

Created by: James

Tags triangular numbers, cody5

1

Solution

73

Size

1

Solution

73

Size

Problem 44345. MATLAB Counter

Created by: Peng Liu

Tags cody5, nested function

2

Solutions

49

Size

2

Solutions

49

Size

Problem 44352. The Top 5 Primes

Created by: Peng Liu

Tags cody5

2

Solutions

59

Size

2

Solutions

59

Size

Problem 44309. Pi Digit Probability

Created by: Mehmet OZC

Tags pi, string manipulation, histogram

1

Solution

31

Size

1

Solution

31

Size

Problem 44368. Inscribed Pentagon?

Created by: goc3

Tags geometry, circle, radius

1

Solution

203

Size

1

Solution

203

Size

Problem 44339. Recaman Sequence - II

Created by: Mehmet OZC

Tags integer sequence, cody5, recaman sequence

1

Solution

75

Size

1

Solution

75

Size

Problem 44369. Circle/Pentagon Overlap

Created by: goc3

Tags geometry, circle, radius

1

Solution

147

Size

1

Solution

147

Size

Problem 44319. Write c^3 as sum of two squares a^2+b^2

Created by: Mehmet OZC

Tags number theory, cody5

1

Solution

77

Size

1

Solution

77

Size

Problem 44375. Missing five

Created by: Alfonso Nieto-Castanon

Tags cody5

2

Solutions

26

Size

2

Solutions

26

Size

Problem 44338. Recaman Sequence - I

Created by: Mehmet OZC

Tags integer sequence, cody5

3

Solutions

65

Size

3

Solutions

65

Size

Problem 44384. Find the nearest prime number

Created by: Matthew Eicholtz

Tags prime numbers, cody5

1

Solution

68

Size

1

Solution

68

Size

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

Created by: Doug Hull

Tags cody5, noughts and crosses

2

Solutions

25

Size

2

Solutions

25

Size

Problem 44342. Spot the First Occurrence of 5

Created by: Peng Liu

Tags cody5

1

Solution

54

Size

1

Solution

54

Size

Problem 44306. Is it really a 5?

Created by: goc3

Tags regexp, string, number

2

Solutions

22

Size

2

Solutions

22

Size

Problem 44358. I Plead the Fifth

Created by: goc3

Tags regexp, strings, string

1

Solution

24

Size

1

Solution

24

Size

Problem 44305. 5 Prime Numbers

Created by: goc3

Tags prime, primes, string

1

Solution

83

Size

1

Solution

83

Size

Problem 44385. Extra safe primes

Created by: Matthew Eicholtz

Tags prime numbers, cody5, safe prime

8

Solutions

44

Size

8

Solutions

44

Size

1 – 50 of 644