Tim

Last seen: 9 jours il y a | Actif depuis 2012

Followers: 2 Following: 0

Message

Retired mathematician.

Statistiques

Afficher les badges

Feeds

A résolu

Count how many elements are above the mean
Given a vector, return the count of elements strictly greater than the mean of the vector. Example: above_mean_count([1 2 3 4 5]...

13 jours il y a

A résolu

Count the vowels in a string
Given a string, return the number of vowels (a, e, i, o, u — case insensitive). Example: count_vowels('Hello World') returns 3

14 jours il y a

A résolu

Find the Longest Consecutive Increasing Path in a Matrix
Given a 2D matrix of integers, find the length of the longest path where each step moves to an adjacent cell (up, down, left, ri...

14 jours il y a

A résolu

Triangle Area Using Heron's Formula
Given the three side lengths a, b, and c of a triangle, calculate its area using Heron's formula and round to 4 decimal places. ...

14 jours il y a

A résolu

Robust Corner Sum with Special Value Handling in Arrays
Compute the sum of the corner elements of an array (vector or matrix). If any corner element is NaN, return NaN. If any corner...

27 jours il y a

A résolu

generate a matrix of Legendre polynomials
input = x - the degree of the polynomial output = matrix of Legendre polynomials

29 jours il y a

A résolu

Compute the bubble popper fidget spinner sequence
A fidget spinner is a toy made of multiple lobes that pivot on a ball bearing. In some, the lobes hold bubble poppers, or rubber...

29 jours il y a

A résolu

Create a random vector of integers with given sum
Your task today is to write a function that returns a vector of integer numbers, between, and including, 1 and m, of which the s...

29 jours il y a

A résolu

Double the 2x2 Matrix
In this challenge, you are given a predefined 2x2 matrix called x. Your task is to multiply every element in this matrix by 2 an...

environ un mois il y a

A résolu

Legendary NBA Playmaker
Write a function that returns a char array containing the name and surname of a famous NBA player known for his spectacular pass...

environ 2 mois il y a

A résolu

Robust Huffman Decoding: The Single-Bit Error Challenge
In the world of data compression, Huffman coding is a classic algorithm. However, it is notoriously fragile: a single bit error ...

environ 2 mois il y a

A résolu

Find an inscribed square on a closed curve
Here's an unproven conjecture from geometry: Every simple closed curve in a plane contains all four vertices of some square. ...

environ 2 mois il y a

A résolu

5-year Annedversaries
This is the Bonus Round problem for the 2025 Cody Contest. Attend the watch party on Friday, March 27 to see how 6 champions fro...

environ 2 mois il y a

A résolu

The Quantum Knight's Tour on a Toroidal Hexagonal Board
In this challenge, you must navigate a knight on a Toroidal Hexagonal Grid of size The grid: We use the Axial Coordinate Syst...

2 mois il y a

A résolu

Find the nearest admirable number
Cody Problems 1012 and 2544 ask us to determine whether a number is perfect—that is, whether the sum of divisors is equal to ....

2 mois il y a

A résolu

Turn year differences into "s score and y years ago"
President Lincoln opened his now-legendary Gettysburg Address with the famous words "Four score and seven years ago...". Given t...

2 mois il y a

A résolu

Play Oware with the digits of a number
Oware is a pit and pebble game that consists of two sets of pits or houses filled with pebbles or seeds. During a turn, a player...

2 mois il y a

A résolu

Determine Matrix Dimensions Without Using some built-in MATLAB functions, version 2
Write a function that takes a 2D matrix/1D vector x as input and returns a row vector containing the number of rows and the numb...

3 mois il y a

A résolu

Sum all elements of a vector or matrix without using sum()
Write a function that computes the sum of all elements of the input array v without using the built-in sum function. The input ...

3 mois il y a

A résolu

Determine Matrix Dimensions Without Using some built-in MATLAB functions
Write a function that takes a 2D matrix/1D vector x as input and returns a row vector containing the number of rows and the numb...

3 mois il y a

A résolu

Determine Matrix Dimensions Without Using size or length
Write a function that takes a matrix A as input and returns a row vector containing the number of rows and the number of columns...

3 mois il y a

A résolu

Where is the number that you want to find?
For a given matrix A, find where the input number x appears. Do this task by returning the vector which contains the row and th...

3 mois il y a

A résolu

Simulate full-stop emergency braking scenario.
Emergency braking events demand rapid deceleration to bring the vehicle safely to rest. Given initial vehicle speed and constant...

3 mois il y a

A résolu

Filled Diamond Pattern
Create an N×N binary matrix that forms a filled diamond shape centered in the matrix. The diamond expands symmetrically toward t...

3 mois il y a

A résolu

Hollow Diamond Pattern
Create an N×N matrix that forms a hollow diamond shape using 1s, leaving the interior empty. This challenge emphasizes boundary ...

3 mois il y a

A résolu

Concentric Squares Mandala
Generate concentric square rings of alternating 1s and 0s to form a layered mandala-style matrix. e.g. N = 5; 1 1 1 1 1;...

3 mois il y a

A résolu

Diagonal Cross Mandala
Generate an N×N matrix with diagonals highlighted to form an artistic X-shaped mandala pattern. e.g. N = 5; 1 0 0...

3 mois il y a

A résolu

Circular Ring Approximation Mandala
Generate a matrix that approximates a circular ring using distance-based thresholding , a visually rich mandala-inspired challen...

3 mois il y a

A résolu

Plus Cross Mandala
Create a symmetrical plus (+) shaped pattern centered in an N×N matrix.

3 mois il y a

A résolu

Vertical Mirror Mandala
Create a symmetric left-right mirrored pattern in an N×N matrix to emulate mandala reflection symmetry. e.g. N = 5; ...

3 mois il y a

Charger plus