Solved

Easy Sequences 5: Project Euler Problem 1 - Again!

We are all familiar with Project Euler Problem 1. This time let's try it on bigger multiples and larger range. Find the sum of ...

etwa ein Monat ago

Solved

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...

etwa ein Monat ago

Solved

Easy Sequences 4: Eliminate the Days of Confusion

If a date is written in purely numeric format some dates can be confusing, if we don't know the date format used. For example, "...

etwa ein Monat ago

Solved

Easy Sequences 3: Prime 44-number Squares

The positive integers 62 and 238 are related. Their squares (3844 and 56,644) both end in '44'. In fact, 62 and 238 are the 3rd ...

etwa ein Monat ago

Solved

Easy Sequences 2: Trigonometric function with integral input and output

The function 'F', defined as: , will always return an integer if the input is a natural number (in radian...

etwa ein Monat ago

Solved

choose the even number

find all even number in vector x Example: x = [1 2 3 4 5 6 7 8 9 10] y = [2 4 6 8 10]

etwa ein Monat ago

Solved

Cell Operator *

Please implement operator * for cell: >> {2,3} * 2 ans = 1×4 cell array [2] [3] [2] [3] >> {2,3} * [2 3]...

etwa ein Monat ago

Solved

Apply Function to Each Field of a Structure Array: Part 2

The builtin <http://www.mathworks.com/help/matlab/ref/structfun.html?=structfun structfun> applies a function handle to each fie...

etwa ein Monat ago

Solved

Draw the flag of United Kingdom from 0 and 1.

Draw the flag of United Kingdom using 0 and 1. Exam: output n = 5 input y = [ 0 0 1 0 0 0 0 ...

etwa ein Monat ago

Solved

Easy Sequences 1: Find the index of an element

The nth element of a series A is defined by: . Obviously, the first element A(1) = 1. Given the nth element 'A(n)', find the val...

etwa ein Monat ago

Solved

Draw matrix 'Swiss flag'( Euro 2020)

Draw a x-by-x matrix 'Swiss flag' using '0' and '1'.(x is odd and bigger than 4) Example x=5 ...

etwa ein Monat ago

Solved

Draw a x-by-x matrix British flag (Euro 2020)

Draw a x-by-x matrix 'British flag' using '0' and '1'.(x is odd and bigger than 4) x = 5 answer = [0 0 1 0 0 ...

etwa ein Monat ago

Solved

Modify subscripts - easier

MATLAB supports object-oriented programming. Let's take an advantage of it in cody. This problem focus on modifying subscript...

etwa ein Monat ago

Solved

Criss-Cross Verification: NHL

This Challenge is to verify a Criss-Cross matrix has no invalid words,contains all of the word set, and all are simply connected...

etwa ein Monat ago

Solved

It's Happy! It's Fun! It's Happy Fun Hyperball!

Yes, it's Happy Fun Hyperball! The CODY sensation that's sweeping MATLAB nation! All you need to do to get your free Happy Fun H...

etwa 2 Monate ago

Solved

3n + 1 Problem (a.k.a The Collatz Conjecture)

The 3n + 1 problem (a.k.a The Collatz Conjecture) Consider the following algorithm to generate a sequence of numbers. Start wit...

etwa 2 Monate ago

Solved

Get to a number faster.

If you start with $1 and, with each move, you can either double your money or add another $1, what is the smallest number of mov...

etwa 2 Monate ago

Solved

Solve Sudoku puzzle step by

Sudoku is a famous puzzle. <https://en.wikipedia.org/wiki/Sudoku> Give a standard sudoku by a matrix (9*9), You need give a ...

etwa 2 Monate ago

Solved

Find the nth consonant number.

Everyone heard about the nth prime number. Let's try to find out the nth consonant. For example , 1 is the first consonant, 10 i...

etwa 2 Monate ago

Solved

Create the flag of Ramumbia

The little known nation of Ramumbia has a very simple flag. It is made up of vertical stripes, Red, Green, Blue, that are equall...

etwa 2 Monate ago

Solved

Loading/Expanding a ZIP file from File Exchange

This challenge is to load a ZIP file from Mathworks File Exchange and UNZIP the contents. *Input:* url_link of ZIP'd file ...

etwa 2 Monate ago

Solved

Dilate a 3d object sampled on a regular grid

3d objects can be described by a set of points on a regular grid in Euclidean space. Given the n x 3 matrix m defining some numb...

etwa 2 Monate ago

Solved

ICFP2021 Hole-In-Wall: Solve Score=0, where number of Figure Vertices = Hole Vertices + 1

The ICFP held its annual 3-day contest in July 2021 with Hole-In-Wall. Contest Specification. The contest folds the figure in R...

etwa 2 Monate ago

Solved

Sort Except Zeros

Sort the numbers in a vector. But the position of zeros should not be changed. Example: sort_except_zeros( [5 3 0 0 2 4] ) == [...

etwa 2 Monate ago

Solved

Double Fibonacci

double_fibonacci takes two integers, each greater than one, as input arguments (it does not have to check the format of the inpu...

etwa 2 Monate ago

Solved

Cancel Middle

Write a function called cancel_middle that takes A, an n-by-m matrix, as an input where both n and m are odd numbers an...

etwa 2 Monate ago

Solved

Draw 'S'

draw S using nxn matrix, where n is odd and greater than 4 S = [1 1 1 1 1 1 0 0 0 0 1 1 1 1 1 0 0 0 0 1 ...

etwa 2 Monate ago

Solved

ICFP2021 Hole-In-Wall: Figure Validation with Segment Crossing and Segment on Wall Checks

The ICFP held its annual 3-day contest in July 2021 with Hole-In-Wall. Contest Specification. The contest folds the figure in R...

2 Monate ago

Solved

ICFP2021 Hole-In-Wall: Solve Score=0, where number Hole Vertices = Figure Vertices

The ICFP held its annual 3-day contest in July 2021 with Hole-In-Wall. Contest Specification. The contest folds the figure in R...

2 Monate ago