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Truncatable Primes
A truncatable prime is a leading digit is successively removed, then all resulting numbers are prime. Wiki When given a number...
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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 pass...
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Duplicate/Twins
You have to find if someone is present in 2 lists even if there's one orthographic fault in his name. Consider that an orthograp...
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Primitive Root Modulo n
Given a positive integer n > 2, return a vector, v, of positive integers smaller than n that are primitive roots modulo n. If no...
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Snakes and Ladders: Variable Die
This problem is a sequal to Problem 59132 Snakes and Ladders: Average Number of Turns. Instead of a 6-sided die, your function ...
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Snakes and Ladders: Average Number of Turns
In this problem, you will play a single-player variant of the classic game Snakes and Ladders. The rules are as follows: The pl...
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Minimum number of crossings in a complete bipartite graph
This problem is related to problem 58389. A complete bipartite graph may be drawn in different ways, such that the number of li...
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The Yellowstone Permutation
The Yellowstone Permutation is a sequence of positive integers, defined by the following rules: No term is repeated. Given n t...
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Exact Cover
An efficient solution to the exact cover problem can be useful in many situations. In this problem, you are welcome to use Knuth...
2 days ago
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Find the dividend
Given a vector of pairwise coprime positive integers, p, and a vector of corresponding remainders, r, return a positive integer,...
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Korselt's Criterion
A composite integer n (n>=2) divides b^n-b, i.e. mod(b^n-b,n)==0, for all integers b if and only if n is square-free (doesn't ha...
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Circle Division
A circle can be divided into 2 sections, by placing 2 points in arbitrary locations along its circumference and drawing a straig...
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Mean number of letters per word (Hard)
The previous problem in this series is <https://www.mathworks.com/matlabcentral/cody/problems/44852-mean-number-of-letters-per-w...
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Aztec Diamond domino tilings
Consider a Cartesian grid, with verteces at integer x and y values, where every four vertices around a vacant space define a uni...
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Kurosu solver
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Segmented number sequence
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Britney unfolded
You have a long, narrow strip of paper. You are going to fold this strip of paper length-wise in half, than fold the folded stri...
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Pronounce digits
Given a number num, select the first d decimal places and pronounce the digits (in English). The function returns the pronunciat...
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Remove Adjacent Pairs
Given an array of integers where adjacent elements may be identical, your task is to remove these adjacent pairs. If removing on...
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Reversing Maximal Ascending Subsequences
Create and return a new array that contains the same elements as the input array, but with the elements within each strictly inc...
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Largest Rectangle Area in a Histogram
Given a histogram represented by an array of integers, e.g., [2, 1, 4, 5, 1, 3, 3] : find the maximum area of a rectangle tha...
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Family Savings Analysis
Given the bank accounts of individuals defined by a list of tuples containing the last name, first name, and savings: accounts ...
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Hofstadter Female and Male sequences
The Hofstadter Female (F) and Male (M) sequences are defined as follows Write a function to compute for a given n. See http...
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Interval Compression
Given a set of integers, the task is to create a list of closed intervals where each interval includes its endpoints. For exampl...
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snake_case to CamelCase convention
The snake_case naming convention writes words in lowercase and separates them with underscores. In CamelCase convention, the fir...
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The CamelCase naming convention capitalizes the first letter of each word. In snake_case convention, words are written in lowerc...
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Limiting Element Occurrences
You are given a list 'v' of numbers. This list may contain repeated numbers. Your objective is to create a new list that maintai...
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Calculate the Compression of a Spring
A mechanical engineer wants to determine how much a spring will compress when a force is applied to it. According to Hooke’s Law...
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Chromatic Tuner
Given a frequency, return the number of cents difference between the given frequency and its nearest semitone (in 12-tone equal ...
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