John D'Errico

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1 – 50 of 132

Problem 42404. Divisible by 2

Created by: goc3

Tags string, precision, overflow

2

Solutions

22

Size

2

Solutions

22

Size

Problem 1443. Edges of a n-dimensional Hypercube

Created by: Yaroslav

Tags geometry, hypercube

2

Solutions

14

Size

2

Solutions

14

Size

Problem 1444. Dots in a Circle

Created by: Yaroslav

Tags geometry, grid

3

Solutions

27

Size

3

Solutions

27

Size

Problem 44480. The average of the second largest values

Created by: Noriko HOUNOKI

Tags basic matlab, basics

4

Solutions

16

Size

4

Solutions

16

Size

Problem 1946. Fibonacci-Sum of Squares

Created by: Chris Cleveland

Tags fibonacci, sum of squares

1

Solution

42

Size

1

Solution

42

Size

Problem 1442. Volume of a Simplex

Created by: Yaroslav

Tags simplex

1

Solution

23

Size

1

Solution

23

Size

Problem 1141. Volume difference between Ellipsoid and Sphere

Created by: Youssef Khmou

Tags geometry

2

Solutions

34

Size

2

Solutions

34

Size

Problem 1385. Perimeter

Created by: andrea84

Tags geometry, length, perimeter

3

Solutions

19

Size

3

Solutions

19

Size

Problem 434. Return the Fibonacci Sequence

Created by: Matt Fig

Tags fibonacci

4

Solutions

45

Size

4

Solutions

45

Size

Problem 981. Find nearest prime number less than input number

Created by: Reza Ahmadzadeh

Tags math, prime numbers

4

Solutions

26

Size

4

Solutions

26

Size

Problem 1119. sum of non-primes

Created by: li jian

Tags isprimes, poor_problem_statement

2

Solutions

21

Size

2

Solutions

21

Size

Problem 44385. Extra safe primes

Created by: Matthew Eicholtz

Tags prime numbers, cody5, safe prime

5

Solutions

38

Size

5

Solutions

38

Size

Problem 2736. Pernicious Anniversary Problem

Created by: Jan Orwat

Tags easy, sequences, oeis

4

Solutions

15

Size

4

Solutions

15

Size

Problem 43638. For given xx,x, y vectors build spline of x and y and find yy values for xx vector.

Created by: Andriy Kavetsky

Tags splines

4

Solutions

14

Size

4

Solutions

14

Size

Problem 43008. What's size of TV?

Created by: Jakub Mrowka

Tags tv, normal life

1

Solution

19

Size

1

Solution

19

Size

Problem 42977. Prime number removal

Created by: Mehdi

Tags prime numbers

4

Solutions

14

Size

4

Solutions

14

Size

Problem 42986. Determine the roots of a cubic equation

Created by: Abhishek Jain

Tags maths, algebra, equation

1

Solution

23

Size

1

Solution

23

Size

Problem 42987. Roots of a quadratic equation.

Created by: Abhishek Jain

Tags quadratic, trivial, equation

5

Solutions

21

Size

5

Solutions

21

Size

Problem 42085. Sum of digits of powers of 2

Created by: Mayuri Patil

Tags sum, digit

2

Solutions

19

Size

2

Solutions

19

Size

Problem 164. Right and wrong

Created by: the cyclist

Tags triangle

3

Solutions

25

Size

3

Solutions

25

Size

Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

1

Solution

40

Size

1

Solution

40

Size

Problem 141. Solve the Sudoku Row

Created by: @bmtran (Bryant Tran)

Tags sudoku, solve, logic

4

Solutions

19

Size

4

Solutions

19

Size

Problem 42935. Sums of cubes and squares of sums

Created by: John D'Errico

Tags integers, projecteuler, numbers

1

Solution

25

Size

1

Solution

25

Size

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

Created by: Doug Hull

Tags projecteuler

10

Solutions

25

Size

10

Solutions

25

Size

Problem 625. Determine Whether an array is empty

Created by: Yudong Zhang

Tags matrix, basic matlab, basics

2

Solutions

12

Size

2

Solutions

12

Size

Problem 163. Love triangles

Created by: the cyclist

Tags vectors, triangle, basic matlab

2

Solutions

22

Size

2

Solutions

22

Size

Problem 72. Interpolator

Created by: Cody Team

Tags interpolation

1

Solution

16

Size

1

Solution

16

Size

Problem 719. Rotate a Matrix by 90 degrees

Created by: Reza Ahmadzadeh

Tags matrix, basic matlab, basics

1

Solution

12

Size

1

Solution

12

Size

Problem 128. Sorted highest to lowest?

Created by: AMITAVA BISWAS

Tags sort, basic matlab, basics

2

Solutions

16

Size

2

Solutions

16

Size

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

Created by: Doug Hull

Tags projecteuler, basic matlab

1

Solution

14

Size

1

Solution

14

Size

Problem 1046. Add two numbers

Created by: Sourav Mondal

Tags math, basic matlab, add

1

Solution

12

Size

1

Solution

12

Size

Problem 838. Check if number exists in vector

Created by: Nichlas

Tags vectors, basic matlab

1

Solution

14

Size

1

Solution

14

Size

Problem 627. Compute a dot product of two vectors x and y

Created by: Evgeny

Tags linear algebra, basic matlab, basics

1

Solution

14

Size

1

Solution

14

Size

Problem 123. Tell me the slope

Created by: AMITAVA BISWAS

Tags slope, basic matlab, retardation

1

Solution

16

Size

1

Solution

16

Size

Problem 108. Given an unsigned integer x, find the largest y by rearranging the bits in x

Created by: AMITAVA BISWAS

Tags binary

1

Solution

17

Size

1

Solution

17

Size

Problem 145. Increment a number, given its digits

Created by: the cyclist

Tags digit increment

3

Solutions

23

Size

3

Solutions

23

Size

Problem 132. given 3 sides, find area of this triangle

Created by: AMITAVA BISWAS

Tags geometry, siam, poor_test_suite

2

Solutions

42

Size

2

Solutions

42

Size

Problem 121. surface of a spherical planet

Created by: AMITAVA BISWAS

Tags planet, basic matlab

1

Solution

15

Size

1

Solution

15

Size

Problem 170. First N Perfect Squares

Created by: @bmtran (Bryant Tran)

Tags math, perfect squares, integers

1

Solution

15

Size

1

Solution

15

Size

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

2

Solutions

25

Size

2

Solutions

25

Size

Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

1

Solution

29

Size

1

Solution

29

Size

Problem 148. Factorize THIS, buddy

Created by: the cyclist

Tags easy prime, basic matlab

2

Solutions

17

Size

2

Solutions

17

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

3

Solutions

64

Size

3

Solutions

64

Size

Problem 48. Making change

Created by: Cody Team

Tags money, subs

1

Solution

71

Size

1

Solution

71

Size

Problem 459. Sum of diagonal of a square matrix

Created by: Sunu

Tags basic matlab, basics, poor_test_suite

1

Solution

12

Size

1

Solution

12

Size

Problem 46. Which doors are open?

Created by: Cody Team

Tags matlab, iteration

1

Solution

17

Size

1

Solution

17

Size

Problem 76. De-dupe

Created by: Cody Team

Tags matlab

1

Solution

13

Size

1

Solution

13

Size

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

1

Solution

48

Size

1

Solution

48

Size

Problem 35. Quote Doubler

Created by: Cody Team

Tags regexp, strings, quotes

1

Solution

14

Size

1

Solution

14

Size

Problem 73. Replace NaNs with the number that appears to its left in the row.

Created by: Cody Team

Tags matlab

1

Solution

51

Size

1

Solution

51

Size

1 – 50 of 132