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Penny flipping - calculate winning probability (easy)

Two players are playing a fair penny flipping game. For each flip, the winner adds one penny from the loser's collection to his/...

presque 2 ans ago

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Woodall number

Test whether the input is a Woodall number: <http://en.wikipedia.org/wiki/Woodall_number> _Please do not cheat by simply chec...

presque 2 ans ago

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Breaking Out of the Matrix

Do you want to take the Red Pill, or the Blue Pill? If you take the Blue Pill, you will simply pass along to the next problem...

presque 2 ans ago

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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...

presque 2 ans ago

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Polarisation

You have n polarising filters stacked one on top of another, and you know each axis angle. How much light gets passed through th...

presque 2 ans ago

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Sophie Germain prime

In number theory, a prime number p is a *Sophie Germain prime* if 2p + 1 is also prime. For example, 23 is a Sophie Germain prim...

presque 2 ans ago

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peta to nano (x-ray)

for certain x-ray radiation, given frequency in petahertz, give wavelength in nanometer, must be accurate +/- 25%

presque 2 ans ago

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Sum of first n terms of a harmonic progression

Given inputs a, d and n, return the sum of the first n terms of the harmonic progression a, a/(1+d), a/(1+2d), a/(1+3d),....

presque 2 ans ago

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Clock Hand Angle 1

Given a time in HH:MM:SS, find the smallest angle (in degrees) between the hour and minute hand

presque 2 ans ago

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Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed

Find the remaining side of a triangle given the hypotenuse and a side. However, the normal functions and symbols are not allowe...

presque 2 ans ago

Solved

GJam 2016 Rd1A: Rank and File (Large)

This Challenge is derived from <http://code.google.com/codejam/contest/4304486/dashboard#s=p1 GJam Rd1A 2016 Rank and File>. Thi...

presque 2 ans ago

Solved

GJam 2016 Rd1A: Rank and File (small)

This Challenge is derived from <http://code.google.com/codejam/contest/4304486/dashboard#s=p1 GJam Rd1A 2016 Rank and File>. Thi...

presque 2 ans ago

Solved

Project Euler 249: Prime Subset Sums

Inspired by Problem 249 of Project Euler. https://projecteuler.net/problem=249 Let S = {2, 3, 5, ...} be the set of prime nu...

presque 2 ans ago

Problem

Project Euler 249: Prime Subset Sums

Inspired by Problem 249 of Project Euler. <https://projecteuler.net/problem=249> Let S = {2, 3, 5, ...} be the set of prime ...

presque 2 ans ago | 1 | 10 solvers

Solved

Separate even from odd numbers in a vector - without loops

*Without using loops*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the...

presque 2 ans ago

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Create Vector containing following elements

Create Vector containing following elements A=[pi eps NaN inf -inf flintmax];

presque 2 ans ago

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Mersenne Primes

A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

presque 2 ans ago

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Largest Twin Primes

<http://en.wikipedia.org/wiki/Twin_prime Twin primes> are primes p1, p2 = p1 + 2 such that both p1 and p2 are prime numbers. Giv...

presque 2 ans ago

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Bell Number calculator

Calculate a vector of Bell numbers for sets up to length n. Bell numbers are the maximum number of partitions of a set. See the ...

presque 2 ans ago

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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...

presque 2 ans ago

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OXO counting

Count the number of occurrences of "OXO" in rows, columns, diagonals and anti-diagonals. Example: >> board = ['OOX' ...

presque 2 ans ago

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Funny problems

Generate the following vector： if n=1 then q=1; elseif n=2 then q=[2 2 1]; elseif n=3 then q=[3 3 3 2 2 1]; ... end

presque 2 ans ago

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Twins in a Window

<http://en.wikipedia.org/wiki/Twin_primes Twin primes> are prime numbers that differ by 2, such as [11,13] or [41,43]. Write a f...

presque 2 ans ago

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5th Time's a Charm

Write a function that will return the input value. However, your function must fail the first four times, only functioning prope...

presque 2 ans ago

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Kaprekar numbers

Test if the input is a Kaprekar number: <http://mathworld.wolfram.com/KaprekarNumber.html>. Return a logical true or false. ...

presque 2 ans ago

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Narcissistic number ?

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

presque 2 ans ago

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Adding and Subtracting UINT variables

Given UINT class variables output the correct solution to A-B+C. *Input:* A,B,C Three uint variables *Output:* solution ...

presque 2 ans ago

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Remove all the consonants

Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

presque 2 ans ago

Solved

R2012b atan in Degrees

Return in degrees the atan result of inputs for all four quadrants. *Examples:* [x, y] Degrees 1 0 0 1 1 ...

presque 2 ans ago

Solved

Create formatted value string Cell array of a vector

This Challenge is to create a cell array that contains strings of vector components in a given format. c=vector2formattedstri...

presque 2 ans ago