Risolto


Consecutive Powers
Return 2 numbers and 2 powers such that their difference is 1 A 4 element row vector is expected: x where x(1)^x(2) - x(...

quasi 6 anni fa

Risolto


Counting the Grand Primes
A grand prime pair is a pair of primes, p1 and p2=p1+1000, such that both numbers are prime. Like a twin prime pair, where the d...

quasi 6 anni fa

Risolto


Leftovers? Again?!
I am thinking of a positive number X. To determine what number I am thinking of, I will give you two 1xN vectors. The first ve...

quasi 6 anni fa

Risolto


Find all vampire fangs
A <http://en.wikipedia.org/wiki/Vampire_number vampire number> is a number v that is the product of two numbers x and y such th...

quasi 6 anni fa

Risolto


Fangs of a vampire number
A <http://en.wikipedia.org/wiki/Vampire_number vampire number> is a number v that is the product of two numbers x and y such tha...

quasi 6 anni fa

Risolto


is the number happy?
test is a given integer number is Happy of not? answer 1 if yes or 0 is no

quasi 6 anni fa

Risolto


Factorions: Numbers that equal the sum of the factorials of their digits
From Wikipedia: _A factorion is a natural number that equals the sum of the factorials of its decimal digits_ For example: ...

quasi 6 anni fa

Risolto


Dudeney Numbers: Numbers which are the cube of their decimal sum
From Wikipedia: _A Dudeney number is a positive integer that is a perfect cube such that the sum of its decimal digits is equa...

quasi 6 anni fa

Risolto


Pandiagonal Prime Magic Square Verification
Verify if an NxN matrix is a Pandiagonal Prime Magic Square. Required properties: 1) N^2 prime values ( No repeats, 1 ...

quasi 6 anni fa

Risolto


Champernowne Constant
The <http://en.wikipedia.org/wiki/Champernowne_constant Champernowne constant> is a real number whose digits in decimal represen...

quasi 6 anni fa

Risolto


Recurring Cycle Length (Inspired by Project Euler Problem 26)
Preface: This problem is inspired by <http://projecteuler.net/problem=26 Project Euler Problem 26> and uses text from that quest...

quasi 6 anni fa

Risolto


Generate a Parasitic Number
This problem is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/156-parasitic-numbers Problem 156>. ...

quasi 6 anni fa

Risolto


nth Rational Number
Return the nth rational number. This is the inverse to Problem <http://www.mathworks.com/matlabcentral/cody/problems/1471 1...

quasi 6 anni fa

Risolto


Parasitic numbers
Test whether the first input x is an n-parasitic number: <http://en.wikipedia.org/wiki/Parasitic_number>. ( _n_ is the second in...

quasi 6 anni fa

Risolto


Is this number Munchhausen Narcissistic?
In this problem, simply return 1 if a supplied number is Munchhausen narcissistic or 0 if not. Example 153 is narcissistic...

quasi 6 anni fa

Risolto


Narcissistic number ?
Inspired by Problem 2056 created by Ted. In recreational number theory, a narcissistic number is a number that is the sum of ...

quasi 6 anni fa

Risolto


N-th Odious
Given index n return n-th <https://oeis.org/A000069 odious number>.

quasi 6 anni fa

Risolto


Polite numbers. N-th polite number.
A polite number is an integer that sums of at least two consecutive positive integers. For example _7 = 3+4_ so 7 is a polite...

quasi 6 anni fa

Risolto


Polite numbers. Politeness.
A polite number is an integer that sums of two or more consecutive positive integers. Politeness of a positive integer is a num...

quasi 6 anni fa

Risolto


Lychrel Number Test (Inspired by Project Euler Problem 55)
The task for this problem is to create a function that takes a number _n_ and tests if it might be a Lychrel number. This is, re...

quasi 6 anni fa

Risolto


Determine if input is a Narcissistic number
<http://en.wikipedia.org/wiki/Narcissistic_number Narcissistic number> is a number that is the sum of its own digits each raised...

quasi 6 anni fa

Risolto


Fermat's Last Theorem - Fermat's conjecture
Fermat's Last Theorem (sometimes called Fermat's conjecture, especially in older texts) states that no three positive integers a...

quasi 6 anni fa

Risolto


P-smooth numbers
This Challenge is to find <https://en.wikipedia.org/wiki/Smooth_number P-smooth number> partial sets given P and a max series va...

quasi 6 anni fa

Risolto


Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

quasi 6 anni fa

Risolto


Happy 2013...
Happy 2013, everyone! An interesting tidbit about 2013 is that it is the first year since 1987 to contain four different digits...

quasi 6 anni fa

Risolto


The glass half full
Identical glasses are placed in a triangular tower structure, such that the top level (L = 1) comprises one glass, the next leve...

quasi 6 anni fa

Risolto


Is it really a 5?
A number containing at least one five will be passed to your function, which must return true or false depending upon whether th...

quasi 6 anni fa

Risolto


I Plead the Fifth
Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty st...

quasi 6 anni fa

Risolto


Project Euler: Problem 18, Maximum path sum I
By starting at the top of the triangle below and moving to adjacent numbers on the row below, the maximum total from top to bott...

quasi 6 anni fa

Risolto


Temperature Conversion Utility
There are a few problems on Cody regarding temperature conversion (C to K, C to F, F to C), but none include Rankine. Furthermor...

quasi 6 anni fa

Carica altro