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Determine if a credit card number conforms to American Express, Visa, or Mastercard schema or if it fails to conform to any of these.
When you pay for things online, sometimes when you enter your credit card number, the online merchant is able to instantly ident...
7 days 前
已解决
Delete and Earn
You are given an integer array nums. You want to maximize the number of points you get by performing the following operation any...
8 days 前
已解决
Find the Number Farthest from the Mean
Given a nonempty vector A, find the element whose distance from the mean of A is greatest. Return the element, not its distance....
8 days 前
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Given a Matrix add a frame of 0's to it
for x as the input = [ 8 7 9 8 2 4 3 2 6 7 5 3] then output y sould be = out=[0 0 0 0 0 ...
22 days 前
已解决
Even Logic. Instant Results
Write a MATLAB function isEven(n) that takes an integer n as input and returns true if the number is even, and false if it is od...
27 days 前
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Reverse-engineer a vector from its summary statistics.
Your task is to write a function that takes a set of statistical metrics and generates a vector 'x' of integers that satisfies t...
1 month 前
已解决
Matrix Column Standardizer
Write a function scaled_mat = standardize_columns(A) that standardizes each column of a 2D matrix A using z-score normalization....
1 month 前
已解决
Count Even Numbers
Write a function count = count_evens(vec) that takes a 1D array (vector) of numbers vec and returns the total count of even numb...
1 month 前
问题
Reverse-engineer a vector from its summary statistics.
Your task is to write a function that takes a set of statistical metrics and generates a vector 'x' of integers that satisfies t...
1 month 前 | 0 | 2 个解题者
已解决
Steal, Share, or Catch: Tournament of Champions
I am no longer supporting this problem. No changes will be made to put more entries in the test suite, but have fun playing any...
1 month 前
已解决
Steal, Share, or Catch
You, I, and a few other characters are going to play a game of *Steal, Share or Catch*. We are going to play it 10,000 times vs...
1 month 前
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Collaborative Fun : Nomination
Series of problems have been presented in Cody aiming at collaborative fun. This problem is based on Alfonso's problem #2825 - P...
1 month 前
已解决
the proud tradition of zero scores in Cody
The short version is: *_your function should return a zero and also have a zero score/size_* The long version comes with a li...
1 month 前
已解决
feeling VERY lucky?
Just like Matthew's problem 2793 and Edward's problem 2872 (guess the number that Cody is thinking) but now you must solve it in...
1 month 前
已解决
Back to the Future III
Marty McFly and Doc Brown are "back" again. See the test suite to see what they are up to.
1 month 前
已解决
Clear all empty variables from the workspace
I want to clear all empty variables from my workspace. See tests suite.
1 month 前
已解决
You are given a matrix A of size m x n representing a Sudoku puzzle. The matrix contains digits from 1 to 9, where 0 represents an empty cell. Your task is to solve the Sudoku puzzle by filling in the empty cells with the correct digits.
The provided code implements a solution for solving Sudoku puzzles using a recursive backtracking algorithm. Sudoku is a log...
1 month 前
已解决
Image Processing 01: Vignetting Correction
The task is to correct image files for IR scanning sensors that due to errant tolerancing and structural instability have varyin...
1 month 前
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Precise Almost Pythagorean Triples
This is essentially the same as: Problem 52834. Easy Sequences 32: Almost Pythagorean Triples; it even presents the same set o...
1 month 前
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Dimensional FindGroupsN
The upgraded version of the built-in findgroups, supports any data type, and you can specify a split dimension, and missing valu...
1 month 前
已解决
switch base, again
Before Dyuman Joshi kindly fixed it, the test suite for problem 60436 contained some syntax errors that made the problem unsolva...
1 month 前
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Largest Prime Factor
Write a function largest_prime_factor(n) that takes a positive integer n as input and returns the largest prime factor of n. A p...
1 month 前
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Calculate the sum of two numbers x and y v2
This is inspired by the broken test suite of problem 59089. As in that problem, your task is simple: calculate the sum of two nu...
1 month 前
已解决
Easy Sequences 107: Minimized Circumcircle-Incircle Areas Ratio of Partial Pythagorean Triangles
We define a Partial Pythagorean Triangle (PPT) as a right triangle wherein the hypotenuse and at least one leg are integers. Thu...
1 month 前
已解决
Easy Sequences 95: LCM Sums
For a given , write the function lcmSum(n), defined as follows: For example for : >> lcmSum = @(n) sum...
1 month 前
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About jokes (and compression)
An argument can be made about jokes. The shorter they are, the funnier. Further explained here: https://en.wikipedia.org/wiki/Hu...
1 month 前
已解决
Get twenty-four
Inpur four integers in 1 to 10, you may use plus, minus, multiply and divid to get 24. Note that every integer should be used on...
1 month 前
