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51 – 100 of 114

Problem 1008. Determine if input is a Narcissistic number

Created by: Binbin Qi

Tags mod floor

2

Solutions

55

Size

2

Solutions

55

Size

Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

1

Solution

59

Size

1

Solution

59

Size

Problem 273. Recurring Cycle Length (Inspired by Project Euler Problem 26)

Created by: @bmtran (Bryant Tran)

Tags project euler, digits, decimals

1

Solution

93

Size

1

Solution

93

Size

Problem 249. Project Euler: Problem 9, Pythagorean numbers

Created by: Doug Hull

Tags projecteuler

2

Solutions

69

Size

2

Solutions

69

Size

Problem 1012. Determine if input is a perfect number

Created by: Binbin Qi

Tags mod sum, perfect

1

Solution

46

Size

1

Solution

46

Size

Problem 170. First N Perfect Squares

Created by: @bmtran (Bryant Tran)

Tags math, perfect squares, integers

1

Solution

18

Size

1

Solution

18

Size

Problem 148. Factorize THIS, buddy

Created by: the cyclist

Tags easy prime, basic matlab

1

Solution

17

Size

1

Solution

17

Size

Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

2

Solutions

73

Size

2

Solutions

73

Size

Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

1

Solution

131

Size

1

Solution

131

Size

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

Created by: elias GR

Tags primes, factors

1

Solution

102

Size

1

Solution

102

Size

Problem 191. Proper Factors

Created by: @bmtran (Bryant Tran)

Tags proper factors

3

Solutions

53

Size

3

Solutions

53

Size

Problem 1066. Multiples of a Number in a Given Range

Created by: @bmtran (Bryant Tran)

Tags factor, plus15, colon

6

Solutions

26

Size

6

Solutions

26

Size

Problem 234. Project Euler: Problem 3, Largest prime factor

Created by: Doug Hull

Tags projecteuler

2

Solutions

20

Size

2

Solutions

20

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

4

Solutions

76

Size

4

Solutions

76

Size

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

1

Solution

88

Size

1

Solution

88

Size

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

Created by: Ned Gulley

Tags vector, asee, summation

1

Solution

69

Size

1

Solution

69

Size

Problem 751. Implement simple rotation cypher

Created by: Doug Hull

Tags encoding, cipher, asee

2

Solutions

68

Size

2

Solutions

68

Size

Problem 753. Solitaire Cipher

Created by: Doug Hull

Tags asee, poor_test_suite

2

Solutions

259

Size

2

Solutions

259

Size

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

1

Solution

107

Size

1

Solution

107

Size

Problem 45194. Cantor counting

Created by: Asif Newaz

Tags cantor, rational number

1

Solution

125

Size

1

Solution

125

Size

Problem 722. Make a run-length companion vector

Created by: Ned Gulley

Tags vector, asee, best

3

Solutions

68

Size

3

Solutions

68

Size

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

Created by: Doug Hull

Tags asee, good

1

Solution

59

Size

1

Solution

59

Size

Problem 661. Spot the outlier

Created by: Ned Gulley

Tags asee, lines, points

4

Solutions

50

Size

4

Solutions

50

Size

Problem 730. How many trades represent all the profit?

Created by: Doug Hull

Tags vector, asee, summation

3

Solutions

68

Size

3

Solutions

68

Size

Problem 1159. Coin Tossing: Probability of Same Heads for N tosses

Created by: Richard Zapor

Tags probability, nchoosek, coin

1

Solution

37

Size

1

Solution

37

Size

Problem 658. Find the biggest empty box

Created by: Ned Gulley

Tags asee

2

Solutions

132

Size

2

Solutions

132

Size

Problem 729. Flag largest magnitude swings as they occur

Created by: Doug Hull

Tags asee, peaks, change

1

Solution

97

Size

1

Solution

97

Size

Problem 659. How long is the longest prime diagonal?

Created by: Ned Gulley

Tags primes, spiral, diagonal

2

Solutions

153

Size

2

Solutions

153

Size

Problem 1846. Free Fall analytical solution (Chapra 2012 textbook Example 1.1)

Created by: Robert Canfield

Tags aoe2074

2

Solutions

35

Size

2

Solutions

35

Size

Problem 43145. Rotate Matrix Depending on the input

Created by: Jamil Kasan

Tags matrix manipulation, matrix

1

Solution

52

Size

1

Solution

52

Size

Problem 43026. Determinant of a 3x3 Matrix

Created by: Jamil Kasan

Tags matrix, determinant

3

Solutions

121

Size

3

Solutions

121

Size

Problem 43269. Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

1

Solution

55

Size

1

Solution

55

Size

Problem 1339. Travelling Salesman Problem (TSP)

Created by: Alex P.

Tags games, travelling salesman

2

Solutions

12

Size

2

Solutions

12

Size

Problem 81. Mandelbrot Numbers

Created by: Cody Team

Tags matlab, fractals

1

Solution

69

Size

1

Solution

69

Size

Problem 67. Find common elements in matrix rows

Created by: Cody Team

Tags matlab

1

Solution

94

Size

1

Solution

94

Size

Problem 95. Given two arrays, find the maximum overlap

Created by: Cody Team

Tags matlab

3

Solutions

187

Size

3

Solutions

187

Size

Problem 1267. Calculate the probability that at least two people in a group share the same birthday.

Created by: Jeremy

Tags probability

1

Solution

48

Size

1

Solution

48

Size

Problem 597. The Birthday Phenomenon

Created by: Ben Ausdenmoore

Tags probability, stats

4

Solutions

65

Size

4

Solutions

65

Size

Problem 44779. Don't be mean. Be nice!

Created by: James

Tags mean, nchoosek

1

Solution

171

Size

1

Solution

171

Size

Problem 44277. Given n, create n random numbers such that their standard deviation is also n.

Created by: AMITAVA BISWAS

Tags linear algebra

1

Solution

56

Size

1

Solution

56

Size

Problem 47315. Find Logic 16

Created by: Dev Gupta

Tags logic, cody, contest

1

Solution

47

Size

1

Solution

47

Size

Problem 87. Indexed Probability Table

Created by: Cody Team

Tags matlab

1

Solution

40

Size

1

Solution

40

Size

Problem 69. Find the peak 3n+1 sequence value

Created by: Cody Team

Tags 3n+1

1

Solution

89

Size

1

Solution

89

Size

Problem 21. Return the 3n+1 sequence for n

Created by: Cody Team

Tags 3n+1, sample

1

Solution

52

Size

1

Solution

52

Size

Problem 47320. Find Logic 17

Created by: Dev Gupta

Tags logic, cody, function

1

Solution

18

Size

1

Solution

18

Size

Problem 47325. Find Logic 18

Created by: Dev Gupta

Tags logic, cody, function

1

Solution

17

Size

1

Solution

17

Size

Problem 47340. Find Logic 19

Created by: Dev Gupta

Tags logic, cody, logical

1

Solution

16

Size

1

Solution

16

Size

Problem 68. Kaprekar Steps

Created by: Cody Team

Tags matlab, lookup table, poor_problem_statement

1

Solution

128

Size

1

Solution

128

Size

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags math, matlab 101, permutations

1

Solution

38

Size

1

Solution

38

Size

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets

1

Solution

83

Size

1

Solution

83

Size

51 – 100 of 114