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Compute the reduced totient
The totient function counts numbers less than n that are relatively prime to n. The reduced totient function, or Carmichael lamb...
1 giorno fa
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Count divisors of n!
The factorial of 5, or 5! = 120, has 16 divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120. How many does n!...
2 giorni fa
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Sum of Elements Above the Main Diagonal of a Square Matrix
Given a square matrix as input, write a function that returns the sum of all elements above the main diagonal. If the input mat...
2 giorni fa
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Solve Geozee
Geozee is a new daily puzzle game where you have to assign 9 given countries to 9 given categories. Categories are such things a...
3 giorni fa
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Is the Matrix Square?
Write a function that determines whether the input matrix x is square. Return true if x has the same number of rows and columns...
10 giorni fa
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Shuffle primes based on their digits
A sequence consisting of prime numbers only starts with 2, the first prime. The next term is the smallest unused prime that shar...
28 giorni fa
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Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifm...
circa un mese fa
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Watermelon [MATLAB Cody Edition]
YOU CAN READ THE REAL CHALLENGE FROM THIS URL AND APPLY IT https://codeforces.com/problemset/problem/4/A NOW INSTEAD OF DISP...
circa 2 mesi fa
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varargin
Write a function that can take a diffrent Amount of inputs for every run Which gives you the sum of all Inputs. Example: f(a,b...
circa 2 mesi fa
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List Chen primes
A Chen prime is a prime number p such that p+2 is either prime or semiprime. The number 17 is a Chen prime because 17+2 = 19 is ...
circa 2 mesi fa
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Count the even numbers in a multiplication table
A multiplication table that has products of numbers from 1 to 10 has 75 even numbers among the products. Write a function to c...
circa 2 mesi fa
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Engine torque and RPM
Torque and power are related through rotational speed. Knowing brake power and engine RPM, you can back-calculate the torque del...
2 mesi fa
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Engine Thermal Efficiency
The thermal efficiency of an ideal Otto cycle engine depends only on the compression ratio. A higher compression ratio yields gr...
2 mesi fa
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Given the ratio of the two legs (longer / shorter), and the hypotenuse length, find the shorter leg.
Further to the problem 43236, find the length of shorter leg P.S No built-in functions allowed
2 mesi fa
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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]...
2 mesi fa
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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
3 mesi fa
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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...
3 mesi fa
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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. ...
3 mesi fa
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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...
3 mesi fa
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generate a matrix of Legendre polynomials
input = x - the degree of the polynomial output = matrix of Legendre polynomials
3 mesi fa
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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...
3 mesi fa
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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...
3 mesi fa
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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...
3 mesi fa
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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...
4 mesi fa
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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 ...
4 mesi fa
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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. ...
4 mesi fa
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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...
4 mesi fa
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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...
4 mesi fa
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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 ....
4 mesi fa
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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...
4 mesi fa
