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Draw the symbol '+'
Draw '+' in an x-by-x matrix (where x is odd and x >3) Example: x = 5 y = [0 0 1 0 0 0 0 1 0 0 1 1 1 1 1 0 ...

4 mesi ago

Solved

Determining if a Degree Sequence is Potentially a Graph
A degree sequence is a list of numbers representing the degrees of vertices in a graph. While it is difficult to tell if a graph...

4 mesi ago

Solved

Check if a matrix Diagonal is equal to its secondary diagonal
Your function should return True if the secondary diagonal is equal to diagonal, and False otherwise. Eg: M = [1 2 1 ...

4 mesi ago

Solved

Area of a regular hexagon
Given the length of a side of a regular hexagon, return its area rounded to two decimal places.

4 mesi ago

Solved

Create the Ulam spiral
Have you ever seen this wonderful spiral ? The Ulam Spiral is arranging prime numbers in a clockwise spiral starting in 0. Give...

4 mesi ago

Solved

Ramanujan's Number
About 1729 1729 is the first positive integer which can be expressed as the sum of two positive cubes in two different ways. ...

4 mesi ago

Solved

Add the number of horizontal and vertical movements to each matrix element
Given n, create a square matrix and with element (1,1) = 1, add 1 to each element for each horitizonal and vertical movement. E...

4 mesi ago

Solved

Draw 'Y'
Draw 'Y' in an x-by-x matrix (where x is odd and x >= 3) Examples: x = 3 y = [1 0 1 0 1 0 0 1 0] x = 5 y = [1...

4 mesi ago

Solved

Matrix rotation
You are given a 2D matrix of dimension [m,n] and a positive integer r. You have to rotate the matrix r times and print the resul...

4 mesi ago

Solved

Circle Division
A circle can be divided into 2 sections, by placing 2 points in arbitrary locations along its circumference and drawing a straig...

4 mesi ago

Solved

Solve an ODE: first-order linear equation
In the fall semester of [redacted], my professor for a course on ordinary differential equations said, “There are two groups of ...

5 mesi ago

Solved

Classify product/digit-sum sequences
Cody Problem 53120 involved a sequence in which a term is computed by multiplying the previous two terms and adding the digits o...

5 mesi ago

Solved

Solve an ODE: nonlinear third-order equation
Write a function to solve the ordinary differential equation on the domain with , , and either or . The input variable ord ...

5 mesi ago

Solved

Check whether a Wordle guess is consistent with previous feedback
The game Wordle resembles the classic game Mastermind. Players try to guess a five-letter word, and after each guess they are to...

5 mesi ago

Solved

Create a secure password
You are joining the MATLAB Central platform to solve a question on Cody. The signup page requires you to input an id and a passw...

5 mesi ago

Solved

Easy Sequences 65: Fractional Part of Square Roots
The fractional part function of a positive real number , denoted as , is defined as: , where , is the 'floor' of . Thus, , and ...

5 mesi ago

Solved

Easy Sequences 64: Base-14 Arithmetic Function
For an integer , the base-14 arithmetic function, , is defined as follows: Convert to base-14, using the letters '' for digits...

5 mesi ago

Solved

List the dopey numbers
If vile numbers have binary representations that end with an even number of zeros (even vile), then numbers with binary represe...

6 mesi ago

Solved

List the vile numbers
Evil numbers, the subject of Cody Problem 2733 have an even number of ones in their binary representations, whereas odious numbe...

6 mesi ago

Solved

List the Beatriz numbers
Write a function to find integers less than or equal to an input value that solve the equation . The function gives the sum o...

6 mesi ago

Solved

Easy Sequences 60: Almost Cube Root
The almost cube root of an integer , is the largest possible integer , such that and . For example , then , since and since th...

6 mesi ago

Solved

Easy Sequences 1: Find the index of an element
The nth element of a series is defined by: . Obviously, the first element . Given the nth element , find the value of the corre...

6 mesi ago

Solved

Easy Sequences 58: Curious Prime-Rational Functions
For some prime numbers and where , a rational function , is defined as follows: . Using the output , another rational functi...

7 mesi ago

Solved

Easy Sequences 56: Counting "Ugly" Numbers
A positive integer is called a regular number, if and only if there exist a non-negative integer , such that . For some reason...

7 mesi ago

Solved

A sequence of Ones
You are given number(s) with all digits - 1. Your answer will depend on the count of 1 in the given number, for example - x1...

7 mesi ago

Solved

Easy Sequences 46: Semi-prime Leap Year Pairs
A semi-prime is a positive integer that has only and exactly prime factors. Here is a list of the first few semi-primes:. We...

7 mesi ago

Solved

Multiply Large Hexadecimal Numbers
Multiply two large hexadecimal numbers together and output the hexadecimal representation of the result. For example: a='abcde...

7 mesi ago

Solved

Compute the Sequence of the Day
A sequence starts with 1 and 2, and each subsequent term is the sum of the digits of the product of the previous two terms. As a...

7 mesi ago

Solved

Easy Sequences 48: Prime Big Omega of Factorial Sequence
For an integer , the prime big omega function, , is defined as the total number prime factors of . So, if , since , therefore ....

8 mesi ago

Solved

Easy Sequences 44: Finding the Smallest Number whose Cube is divisible by a Factorial
Given a integer , our goal is to find the smallest integer , such that divides . For example, for , , because , (since ), and ...

8 mesi ago