Sergio Fraioli

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1 – 50 of 114

Problem 2606. Decrypt the cypher using XOR encryption (for beginners)

Created by: Jean-Marie Sainthillier

Tags xor, projecteuler, encryption

1

Solution

59

Size

1

Solution

59

Size

Problem 1103. Right Triangle Side Lengths (Inspired by Project Euler Problem 39)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15

2

Solutions

69

Size

2

Solutions

69

Size

Problem 2323. Pandigital number n°3 (Inspired by Project Euler 32)

Created by: Jean-Marie Sainthillier

Tags project euler, pandigital number

3

Solutions

158

Size

3

Solutions

158

Size

Problem 2320. Pandigital number n°2 (Inspired by Project Euler 32)

Created by: Jean-Marie Sainthillier

Tags project euler, pandigital number

3

Solutions

148

Size

3

Solutions

148

Size

Problem 2319. Pandigital number n°1 (Inspired by Project Euler 32)

Created by: Jean-Marie Sainthillier

Tags project euler, pandigital number

1

Solution

66

Size

1

Solution

66

Size

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

Created by: James

Tags primes, projecteuler, circular reasoning

2

Solutions

105

Size

2

Solutions

105

Size

Problem 1106. I've got the power! (Inspired by Project Euler problem 29)

Created by: James

Tags projecteuler, powers, snap!

1

Solution

68

Size

1

Solution

68

Size

Problem 546. Is A the inverse of B?

Created by: Bruce Raine

Tags inverse function, inverse, identity

3

Solutions

30

Size

3

Solutions

30

Size

Problem 42966. find "greatest common divisor" of two integer value

Created by: Mehdi

Tags gcd, integer number

1

Solution

42

Size

1

Solution

42

Size

Problem 37. Pascal's Triangle

Created by: Cody Team

Tags math, combinatorics

1

Solution

63

Size

1

Solution

63

Size

Problem 44468. Diagonal Pattern

Created by: Shaul Salomon

Tags matrices, loops, 22105

1

Solution

69

Size

1

Solution

69

Size

Problem 42876. Rotate Matrix @180 degree

Created by: Pritesh Shah

Tags matrix manipulation, matrix

1

Solution

15

Size

1

Solution

15

Size

Problem 50912. Draw a '0' in a one matrix!

Created by: Szász Botond

Tags x

1

Solution

61

Size

1

Solution

61

Size

Problem 42581. Create sequnce 1 4 9 16 25.........

Created by: Azhar

Tags vectors, sequences, logical

1

Solution

36

Size

1

Solution

36

Size

Problem 42394. It's going down. We're finding simbers!

Created by: James

Tags projecteuler, you better move, you better dance

3

Solutions

68

Size

3

Solutions

68

Size

Problem 44733. Large Sum (inspired by Project Euler 13)

Created by: goc3

Tags string, project euler, large number

2

Solutions

193

Size

2

Solutions

193

Size

Problem 252. Project Euler: Problem 16, Sums of Digits of Powers of Two

Created by: @bmtran (Bryant Tran)

Tags project euler, big integer, digits

2

Solutions

51

Size

2

Solutions

51

Size

Problem 44341. Hexagonal numbers on a spiral matrix

Created by: Mehmet OZC

Tags big integer, cody5, hexagonal numbers

4

Solutions

208

Size

4

Solutions

208

Size

Problem 42415. Divisible by 13

Created by: goc3

Tags string, precision, overflow

3

Solutions

146

Size

3

Solutions

146

Size

Problem 2337. Sum of big primes without primes

Created by: Jean-Marie Sainthillier

Tags primes, project euler, eratosthenes

2

Solutions

79

Size

2

Solutions

79

Size

Problem 1253. Infinite precision division

Created by: Christopher

Tags infinite precision, doh!

1

Solution

91

Size

1

Solution

91

Size

Problem 553. How to multiply?

Created by: AMITAVA BISWAS

Tags arithmetic, convolution, multiply

2

Solutions

121

Size

2

Solutions

121

Size

Problem 564. How to subtract?

Created by: AMITAVA BISWAS

Tags addition, cody5, X-Y

1

Solution

219

Size

1

Solution

219

Size

Problem 563. How to add?

Created by: AMITAVA BISWAS

Tags string, arithmetic, add

2

Solutions

149

Size

2

Solutions

149

Size

Problem 752. Is X a Fibonacci Matrix?

Created by: Sean de Wolski

Tags fibonacci, Tic...Toc...

4

Solutions

195

Size

4

Solutions

195

Size

Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

Tags fibonacci, cody5, big number

3

Solutions

17

Size

3

Solutions

17

Size

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

Created by: Binbin Qi

Tags loop, fibonacci, condition

1

Solution

32

Size

1

Solution

32

Size

Problem 43016. Find the next Fibonacci number

Created by: Steven Van Vaerenbergh

Tags fibonacci

1

Solution

99

Size

1

Solution

99

Size

Problem 2423. Integer Sequence - II : New Fibonacci

Created by: rifat

Tags fibonacci, integer sequence

2

Solutions

88

Size

2

Solutions

88

Size

Problem 434. Return the Fibonacci Sequence

Created by: Matt Fig

Tags fibonacci

1

Solution

71

Size

1

Solution

71

Size

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

2

Solutions

57

Size

2

Solutions

57

Size

Problem 42935. Sums of cubes and squares of sums

Created by: John D'Errico

Tags integers, projecteuler, numbers

8

Solutions

49

Size

8

Solutions

49

Size

Problem 250. Project Euler: Problem 10, Sum of Primes

Created by: Doug Hull

Tags projecteuler, basic matlab

1

Solution

27

Size

1

Solution

27

Size

Problem 246. Project Euler: Problem 8, Find largest product in a large string of numbers

Created by: Doug Hull

Tags projecteuler

1

Solution

60

Size

1

Solution

60

Size

Problem 241. Project Euler: Problem 7, Nth prime

Created by: Doug Hull

Tags primes, projecteuler

1

Solution

18

Size

1

Solution

18

Size

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

Created by: Doug Hull

Tags projecteuler

1

Solution

26

Size

1

Solution

26

Size

Problem 239. Project Euler: Problem 5, Smallest multiple

Created by: Doug Hull

Tags projecteuler

1

Solution

23

Size

1

Solution

23

Size

Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by: Doug Hull

Tags projecteuler

1

Solution

93

Size

1

Solution

93

Size

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

Created by: Cody Team

Tags projecteuler, fibonacci

6

Solutions

54

Size

6

Solutions

54

Size

Problem 230. Project Euler: Problem 1, Multiples of 3 and 5

Created by: Doug Hull

Tags projecteuler

1

Solution

48

Size

1

Solution

48

Size

Problem 45249. Frugal number

Created by: Asif Newaz

Tags number, frugal, economical

1

Solution

76

Size

1

Solution

76

Size

Problem 45253. Pell numbers

Created by: Asif Newaz

Tags number, sequence, pell

1

Solution

43

Size

1

Solution

43

Size

Problem 45272. Pseudo-vampire number

Created by: Asif Newaz

Tags numbers, number theory, sequence

2

Solutions

106

Size

2

Solutions

106

Size

Problem 1477. Champernowne Constant

Created by: G K

Tags math

1

Solution

55

Size

1

Solution

55

Size

Problem 1407. Is it an Armstrong number?

Created by: Harish Maradana

Tags armstrong no

1

Solution

51

Size

1

Solution

51

Size

Problem 1298. P-smooth numbers

Created by: Richard Zapor

Tags primes, find, mod

1

Solution

40

Size

1

Solution

40

Size

Problem 1281. Fermat's Last Theorem - Fermat's conjecture

Created by: Marco Castelli

Tags matlab, find, sum

1

Solution

64

Size

1

Solution

64

Size

Problem 1162. Happy 2013...

Created by: James

Tags new year, different digits, 2013

1

Solution

62

Size

1

Solution

62

Size

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

2

Solutions

47

Size

2

Solutions

47

Size

Problem 1082. Lychrel Number Test (Inspired by Project Euler Problem 55)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15

3

Solutions

67

Size

3

Solutions

67

Size

1 – 50 of 114