Resuelto

Project Euler: Problem 3, Largest prime factor
The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number being input, input might be ui...

alrededor de 4 años hace

Resuelto

Project Euler: Problem 2, Sum of even Fibonacci
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 te...

alrededor de 4 años hace

Resuelto

Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

alrededor de 4 años hace

Resuelto

With apologies to William Blake
Coder Coder, typing fast Sitting at your desk, aghast. What immortal MATLAB script will solve this problem, nice and qu...

alrededor de 4 años hace

Resuelto

Evened up (or not)
You will be provided with an array or matrix that contains various numbers, in addition to an evening variable, e, set to 1 or 0...

alrededor de 4 años hace

Resuelto

De-primed
Write a function that will multiply every prime number in the array or matrix by two, leaving all other numbers the same, and re...

alrededor de 4 años hace

Resuelto

Big numbers, least significant digits
Given two numbers, x and n, return the last d digits of the number that is calculated by x^n. In all cases, d will be the number...

alrededor de 4 años hace

Resuelto

Digital Neighbourhood
Given a natural number reorder its digits to create another number, closest to the given one. Examples: * 123 gives 132, ...

alrededor de 4 años hace

Resuelto

Binary Neighbourhood
Given a natural number reorder its binary form to create another number, closest to the given one. Examples: * 1 gives 2, ...

alrededor de 4 años hace

Resuelto

Convert to Binary Coded Decimal
Convert from decimal representation to <http://en.wikipedia.org/wiki/Binary-coded_decimal Binary Code Decimal> (or BCD) represen...

alrededor de 4 años hace

Resuelto

Find out the Gray Code for a Given Binary Number
Find out <http://en.wikipedia.org/wiki/Gray_code Gray Code> for a given binary number Example Binary input 1000 Gray ...

alrededor de 4 años hace

Resuelto

Consecutive Equation Times (of the day)
Many times throughout the day can represent mathematical equations. In this problem, we focus on the largest consecutive run of ...

alrededor de 4 años hace

Resuelto

Equation Times (of the day)
Many times throughout the day can represent mathematical equations. In this problem, we focus on times that include the four bas...

alrededor de 4 años hace

Resuelto

Power Times (of the day)
Many times throughout the day can represent mathematical equations. In this problem, we focus on times that represent powers. Fo...

alrededor de 4 años hace

Resuelto

Bit calculation
Give me the count of numbers from 1 to n having their last two bits as 0. For example function y = ret_count(4) y = x...

alrededor de 4 años hace

Resuelto

Big numbers, repeated least significant digits
This problem builds off of Problem 3077 Given an integer x which contains d digits, find the value of (minimum) n (n > 1) such ...

alrededor de 4 años hace

Resuelto

Mysterious digits operation (easy)
What is this digit operation? 0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...

alrededor de 4 años hace

Resuelto

Toeplitize a matrix
Similar to <http://www.mathworks.com/matlabcentral/cody/problems/3094-hankelize-a-matrix Problem 3094. Hankelize a matrix>, now ...

alrededor de 4 años hace

Resuelto

Write a function man that takes a row vector v and returns a matrix H as follows..
Write a function called man that takes a row vector v as an input and returns a matrix H whose first column consist of the eleme...

alrededor de 4 años hace

Resuelto

Hankelize a matrix
Similar to <http://www.mathworks.com/matlabcentral/cody/problems/42501-toeplitize-a-matrix Problem 42501. Toeplitize a matrix>, ...

alrededor de 4 años hace

Resuelto

Matrix of Multiplication Facts
This is James's daughter again, sneaking into his Cody account. Thanks to your help in my math class last year, I did great! B...

alrededor de 4 años hace

Resuelto

Go to the head of the class!
You're given a matrix and a single number. If that number is in the matrix, reorder the matrix so that number is in the first r...

alrededor de 4 años hace

Resuelto

Must be in the front row...
You are given a matrix followed by a single number. Your object is to write a script that will shift the matrix around so that ...

alrededor de 4 años hace

Resuelto

Magnet and Iron
(Inspired from <http://www.mathworks.com/matlabcentral/cody/problems/112 Problem 112: Remove the air bubbles>) Iron (atomic n...

alrededor de 4 años hace

Resuelto

Replace Nonzero Numbers with 1
Given the matrix x, return the matrix y with non zero elements replaced with 1. Example: Input x = [ 1 2 0 0 0 ...

alrededor de 4 años hace

Resuelto

Matrix multiplication across rows
Given matrix m, return matrix n such that, rows of n are result of multiplication of the rows of the input matrix Example ...

alrededor de 4 años hace

Resuelto

A matrix of extroverts
Now that the introverts have had their script, the extroverts spoke up (naturally!) and demanded one as well. You will be given...

alrededor de 4 años hace

Resuelto

Convert matrix to 3D array of triangular matrices
Given a 2D numeric array x in which each column represents the vectorized form of an upper triangular matrix, return a 3D array ...

alrededor de 4 años hace

Resuelto

Too Many Zeros, Dump Them!
Sometimes when I create a matrix, I use this syntax: a = zeros(1000,1000); But when the function ends, I find that I don'...

alrededor de 4 años hace

Resuelto

Enlarge array
Given an m-by-n numeric array (A) and a 1-by-2 vector (sz) indicating the dimensions [p q] to enlarge each element, return an (m...

alrededor de 4 años hace