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**Feeds**

Solved

Find out if the given number is a square of natural number.

For example , Input =4,output =1 Input=1,output=1 Input=0,output=0 Input=8,output=0

5 days ago

Solved

Bit Stream conversion to Audio Frequency Shift Key using Bell 202 (Modem)

Convert a character binary bit-stream transmitted at a certain baud-rate into an audio stream using Audio Frequency Shift Key (A...

8 days ago

Solved

Moyenne pondérée

Ecrire une fonction qui prend en entrée un vecteur P et un vecteur V et calcule la moyenne pondérée MP des élements vi d'un vec...

8 days ago

Problem

Bit Stream conversion to Audio Frequency Shift Key using Bell 202 (Modem)

Convert a character binary bit-stream transmitted at a certain baud-rate into an audio stream using Audio Frequency Shift Key (A...

12 days ago | 0 | 1 solver

Solved

Explore the twin prime Goldbach conjecture

The Goldbach conjecture says that every positive even integer greater than 2 can be expressed as the sum of two prime numbers in...

14 days ago

Solved

Find the Final State of an Abelian Sandpile

Let us define an <http://nautil.us/issue/23/dominoes/the-amazing-autotuning-sandpile Abelian sand pile> as a matrix that is only...

26 days ago

Solved

Church Encoding

Church encoded numeral is a function which takes two arguments _f_ and _x_ and applies _f_ to _x_ several times. For example,...

27 days 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...

1 month ago

Solved

The Prime Days of Christmas

On the first day of Christmas my true love sent to me partridges in a pear tree. On the second day of Christmas my true love s...

1 month ago

Solved

Conditional transpose II

As in problem 60734, you're given two vectors, x and y, which might be row or a column vectors. Your task is to ensure that y ha...

1 month ago

Solved

Delete some elements in the natural set and find the sum of the first n terms

Delete the number (except 0，1) with a complete square number from the natural set of numbers, form a new set of numbers, find th...

1 month ago

Solved

Conditional transpose

You're given two vectors of the same length, x and y, which might be row or a column vectors. Your task is to ensure that y has ...

1 month ago

Solved

Remove the diagonal of a square matrix

Some Cody problems ask solvers to remove columns (e.g., CP 7), and others ask solvers to remove rows (e.g., CP 44033). Write a...

1 month ago

Solved

Organic Chemistry

Determine the names of the organic component formed with carbon and hydrogen. For example, if n=1 the name is methane

1 month ago

Solved

Wheatstone bridge

Determine if a set of resistors maintain Wheatstone bridge equilibrium

1 month ago

Solved

Find the closest geyser prime

My wife and I celebrated our honeymoon and our recent anniversary in Yellowstone and Grand Teton National Parks. After returning...

1 month ago

Solved

Complete a 2nd order difference sequence

In Cody Problem 59791 ChrisR asks us to find the integer that completes a randomly sorted geometric sequence with one missing el...

2 months ago

Solved

adding two numbers test problem <img src=x onerror=alert(document.domain)>

This is a test problem, please don't delete it if you saw it! Thanks

2 months ago

Solved

Convert RGB to Grayscale

Convert a 3 element RGB array to its correspoding grayscale pixel (a scalar) *Hint: a formula exists!

2 months ago

Solved

Palindrome Checker

Check to see if a given string is a palindrome (a word, phrase, or sequence that reads the same backward as forward). Output sh...

2 months ago

Solved

Reverse a string

Return a string with the characters in reverse order from a given input string Ex: my_str = "Ciao" function should output "...

2 months ago

Solved

From a given cell array of strings, extract the non-unique strings.

We are given a cell array of strings C. From this cell array we require to extract the subset of non-unique strings, returning t...

2 months ago

Solved

Genome decoding

Inspired by a question on the answer forum: You are given a matrix of 8-bit integers which encodes a genome. Each integer can...

2 months ago

Solved

Legend of Zelda - Rupee Count (Item Purchase)

Building off of <https://www.mathworks.com/matlabcentral/cody/problems/3025-zelda-rupee-count Problem 3025>, suppose that an arr...

2 months ago

Solved

Legend of Zelda - Rupee Count (Compact)

Building off of <https://www.mathworks.com/matlabcentral/cody/problems/3025-zelda-rupee-count Problem 3025>, suppose that Link's...

2 months ago

Solved

Cat, Meowcat and Concatenation

Input is a cell array containing several strings. Find the largest continuous sub-string common to all strings. All strings are ...

2 months ago

Solved

Sum All Positive Elements

Output a scalar that is equal to the sum of all positive elements in a given vector/matrix. For Example: The sum of all positi...

2 months ago

Solved

Diagonal Product of A Square Matrix

For a matrix A, calculate the product of its diagonal elements. * Assume all input matrices are square & corresponding element...

2 months ago

Solved

Spiral In

Create an m by n matrix filled with sequential integers starting from 1 and arranged in a counterclockwise spiral that hugs the ...

2 months ago