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A résolu


Make a function that returns its own character count
Write a function that returns a 128 element vector with an accurate inventory of the ASCII characters in its own function file. ...

environ un mois il y a

A résolu


Construct a continued fraction for a square root

environ un mois il y a

A résolu


Josephus Survivor
The <http://en.wikipedia.org/wiki/Josephus_problem Josephus Challenge> is to find the position that is the last remaining when e...

environ un mois il y a

A résolu


Sudoku Solver - Standard 9x9
Solve a Standard 9x9 <http://en.wikipedia.org/wiki/Sudoku Sudoku>. Values 1 thru 9 occur in each row, column, and the nine non-o...

environ un mois il y a

A résolu


calculate PI without using pi function
There are many methods to get the pi(Ratio of circumference to diameter). You should get pi without using the pi function in M...

environ un mois il y a

A résolu


minimum numbers of 1 to build n
The (Mahler-Popken) complexity of n: minimal number of 1's required to build n using + and *. see A005245. In this problem, yo...

environ un mois il y a

A résolu


Ned's queens
A tribute to Cody's five-year anniversary should also celebrate the people behind Cody, and in this particular case, our illustr...

environ un mois il y a

A résolu


perfect square
Perfect square is amazing, so we have problems like 45183, 34482, 44683, and 44957. But how can we find a large number is a pe...

environ un mois il y a

A résolu


Solve the Challenger puzzle

environ un mois il y a

A résolu


Two fractions, one sum
Given a positive number x, write a MATLAB script that will tell you how many ways that the reciprocal of that number can be writ...

environ un mois il y a

A résolu


Concatenate input positive integers to obtain a maximum.
Input some integers, you need to concatenate them to obtain a maximum integer. Neither use library function "perms" to list all ...

environ un mois il y a

A résolu


Hexagonal numbers on a spiral matrix
Put hexagonal numbers in a ( m x m ) spiral matrix and return the sum of its diagonal elements. Formula of hexagonal numbers ...

environ un mois il y a

A résolu


increasing sequences
Given a string of digits, insert commas to create a sequence of strictly increasing numbers so as to minimize the magnitude of t...

environ un mois il y a

A résolu


Missing five
Convert decimal numbers to a base-9 notation missing the digit *5* <<http://www.alfnie.com/software/missing5.jpg>> Too man...

environ un mois il y a

A résolu


Combined Ages 3 - Non-symmetric, n ≥ 3
Pursuant to the previous two problems ( <http://www.mathworks.com/matlabcentral/cody/problems/42382-combined-ages-1-symmetric-n-...

environ un mois il y a

A résolu


Spherical radius given four points
Determine the radius of a sphere provided four non-coplanar points on the surface of the sphere. pts = [x1 y1 z1; x...

environ un mois il y a

A résolu


Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

environ 2 mois il y a

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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

environ 2 mois il y a

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Is It a Snake?
Given an m-by-n matrix, return true if the elements of the matrix are a connected "snake" shape from 1 to m*n. Otherwise return ...

environ 2 mois il y a

A résolu


Construct a prime circle
A <https://mathworld.wolfram.com/PrimeCircle.html prime circle> is a circular arrangement of the numbers 1 to 2n such that pairs...

environ 2 mois il y a

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Factorizing a number into a given number of factors
Given a positive integer, n, and another positive integer, b, return a matrix, M, of width b, with the following properties: (a)...

environ 2 mois il y a

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Leap years on other planets
A year is a leap year if it is divisible by 4, but not if it is divisible by 100, unless it is also divisible by 400. This mean...

environ 2 mois il y a

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Counting in Finnish
Sort a vector of single digit whole numbers alphabetically by their name, in Finnish. See the Wikipedia page for <http://en.wik...

environ 2 mois il y a

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It dseon't mettar waht oedrr the lrettes in a wrod are.
An internet meme from 2003 (read more here) asserted that readers are relatively insensitive to letter order in words, so long a...

environ 2 mois il y a

A résolu


Number of Circles in a Number
Given a number, return the number of closed 'circles' in the base 10 numerical representation. Note: the number 4 has no circ...

environ 2 mois il y a

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nth Rational Number
Return the nth rational number. This is the inverse to Problem 1471. Index of a Rational number The first ten positive rationa...

environ 2 mois il y a

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Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

environ 2 mois il y a

A résolu


Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

environ 2 mois il y a

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Pizza!
Given a circular pizza with radius z and thickness a, return the pizza's volume. [ z is first input argument.] Non-scored bonus...

environ 2 mois il y a

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