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Problem 231. Differential equations I

Created by: Tomasz

Tags ode, differential equations

1

Solution

24

Size

1

Solution

24

Size

Problem 179. Monte-Carlo integration

Created by: Tomasz

Tags monte-carlo integration, rand

1

Solution

24

Size

1

Solution

24

Size

Problem 44776. Lights Out 15 - 5x5, broken buttons I

Created by: goc3

Tags game, logic, flip

1

Solution

41

Size

1

Solution

41

Size

Problem 44769. Lights Out 14 - 5x5, four stages, x moves

Created by: goc3

Tags game, logic, flip

2

Solutions

94

Size

2

Solutions

94

Size

Problem 44767. Lights Out 13 - 5x5, three stages, x moves

Created by: goc3

Tags game, logic, flip

5

Solutions

94

Size

5

Solutions

94

Size

Problem 44766. Lights Out 12 - 5x5, three stages, <7 moves

Created by: goc3

Tags game, logic, flip

1

Solution

72

Size

1

Solution

72

Size

Problem 44765. Lights Out 11 - 5x5, with wrapping, x moves

Created by: goc3

Tags game, logic, flip

1

Solution

42

Size

1

Solution

42

Size

Problem 44764. Lights Out 10 - 5x5, with wrapping, 6 moves

Created by: goc3

Tags game, logic, flip

1

Solution

43

Size

1

Solution

43

Size

Problem 44761. Lights Out 9 - 5x5, light-only solution? II

Created by: goc3

Tags game, logic, flip

1

Solution

56

Size

1

Solution

56

Size

Problem 44760. Lights Out 8 - 5x5, light-only solution? I

Created by: goc3

Tags game, logic, flip

1

Solution

20

Size

1

Solution

20

Size

Problem 44759. Lights Out 7 - 5x5, x moves

Created by: goc3

Tags game, logic, flip

2

Solutions

42

Size

2

Solutions

42

Size

Problem 44757. Lights Out 6 - 5x5, 13 moves

Created by: goc3

Tags game, logic, flip

1

Solution

46

Size

1

Solution

46

Size

Problem 44756. Lights Out 5 - 5x5, 10 moves

Created by: goc3

Tags search, game, logic

1

Solution

46

Size

1

Solution

46

Size

Problem 44755. Lights Out 4 - 5x5, 8 moves

Created by: goc3

Tags game, logic, flip

1

Solution

46

Size

1

Solution

46

Size

Problem 44753. Lights Out 3 - 5x5, 6 moves

Created by: goc3

Tags game, logic, flip

1

Solution

42

Size

1

Solution

42

Size

Problem 44752. Lights Out 2 - 5x5, 4 moves

Created by: goc3

Tags game, logic, flip

1

Solution

42

Size

1

Solution

42

Size

Problem 44751. Lights Out 1 - 5x5, 3 moves

Created by: goc3

Tags game, logic, flip

1

Solution

42

Size

1

Solution

42

Size

Problem 60501. Generate a point cloud on an equilateral triangle 8

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

2

Solutions

48

Size

2

Solutions

48

Size

Problem 60496. Generate a point cloud on an equilateral triangle 7

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

2

Solutions

47

Size

2

Solutions

47

Size

Problem 60491. Generate a point cloud on an equilateral triangle 6

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

2

Solutions

48

Size

2

Solutions

48

Size

Problem 60481. Generate a point cloud on an equilateral triangle 5

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

2

Solutions

59

Size

2

Solutions

59

Size

Problem 60471. Generate a point cloud on an equilateral triangle 4

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

2

Solutions

47

Size

2

Solutions

47

Size

Problem 60466. Generate a point cloud on an equilateral triangle 3

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

1

Solution

44

Size

1

Solution

44

Size

Problem 60461. Generate a point cloud on an equilateral triangle 2

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

3

Solutions

46

Size

3

Solutions

46

Size

Problem 60446. Generate a point cloud on an equilateral triangle 1

Created by: Tomoaki Takagi

Tags lattice points, point cloud, uniformly distributed points

1

Solution

46

Size

1

Solution

46

Size

Problem 59581. Generate a point cloud named `Incremental Lattice Design`

Created by: Tomoaki Takagi

Tags point cloud, weight vector set, uniformly distributed points

2

Solutions

59

Size

2

Solutions

59

Size

Problem 60441. Generate a point cloud named `Simplex-Lattice Design`

Created by: Tomoaki Takagi

Tags point cloud, weight vector set, uniformly distributed points

2

Solutions

53

Size

2

Solutions

53

Size

Problem 57839. Easy Sequences 104: One-line Code Challenge - GCDs of Sum of Consecutive Cubes

Created by: Ramon Villamangca

Tags easy, number theory, gcd

2

Solutions

28

Size

2

Solutions

28

Size

Problem 58498. Compute the Sisyphus sequence

Created by: ChrisR

Tags primes, sequence, mythology

1

Solution

100

Size

1

Solution

100

Size

Problem 60581. List primes of the form xy+z

Created by: ChrisR

Tags primes, number theory, sequence

1

Solution

38

Size

1

Solution

38

Size

Problem 59836. Determine whether a number is a Gaussian prime

Created by: ChrisR

Tags primes, mod, complex

2

Solutions

40

Size

2

Solutions

40

Size

Problem 59701. Express numbers as the sum of a prime, a square, and a cube

Created by: ChrisR

Tags primes, puzzle, partitions

1

Solution

43

Size

1

Solution

43

Size

Problem 59170. Determine whether a number is a Zeisel number

Created by: ChrisR

Tags primes, sequence, recurrence

1

Solution

71

Size

1

Solution

71

Size

Problem 59126. Compute the bubble popper fidget spinner sequence

Created by: ChrisR

Tags binary, sequence, modulo

2

Solutions

35

Size

2

Solutions

35

Size

Problem 58019. Factor a number into Fermi-Dirac primes

Created by: ChrisR

Tags primes, number theory

1

Solution

36

Size

1

Solution

36

Size

Problem 58018. List the Fermi-Dirac primes

Created by: ChrisR

Tags primes, number theory

1

Solution

23

Size

1

Solution

23

Size

Problem 57869. Identify de Polignac numbers

Created by: ChrisR

Tags primes, number theory, sequence

1

Solution

21

Size

1

Solution

21

Size

Problem 57815. List numbers such that every sum of consecutive positive integers ending in those numbers is composite

Created by: ChrisR

Tags primes, sequence, triangular

1

Solution

28

Size

1

Solution

28

Size

Problem 57810. List the two-bit primes

Created by: ChrisR

Tags primes, strings, puzzle

2

Solutions

62

Size

2

Solutions

62

Size

Problem 57477. Solve an equation involving primes and fractions

Created by: ChrisR

Tags primes, number theory, sequence

2

Solutions

62

Size

2

Solutions

62

Size

Problem 55275. List the semiprimes

Created by: ChrisR

Tags primes, number theory, sequence

2

Solutions

13

Size

2

Solutions

13

Size

Problem 54755. List odd twin composites

Created by: ChrisR

Tags primes, number theory, sequence

1

Solution

35

Size

1

Solution

35

Size

Problem 53810. List the Beatriz numbers

Created by: ChrisR

Tags primes, number theory, sequence

1

Solution

21

Size

1

Solution

21

Size

Problem 54620. List the Euclid numbers

Created by: ChrisR

Tags primes, sequence, infinitude

1

Solution

75

Size

1

Solution

75

Size

Problem 52956. Compute the largest number whose prime factors sum to n

Created by: ChrisR

Tags primes, sequence, integer complexity

2

Solutions

14

Size

2

Solutions

14

Size

Problem 52881. List the cuban primes

Created by: ChrisR

Tags primes, project euler, sequence

2

Solutions

13

Size

2

Solutions

13

Size

Problem 52664. List the Moran numbers

Created by: ChrisR

Tags primes, speed, sequence

3

Solutions

15

Size

3

Solutions

15

Size

Problem 2487. Create Combination

Created by: rifat

Tags nchoosek

1

Solution

40

Size

1

Solution

40

Size

Problem 1855. Usage of java.math : N Choose K with unlimited precision

Created by: Richard Zapor

Tags nchoosek, java, bigdecimal

2

Solutions

38

Size

2

Solutions

38

Size

Problem 1889. Get ranking of a combination looking for speed.

Created by: Doug Hull

Tags speed

2

Solutions

39

Size

2

Solutions

39

Size

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