Risolto

Back to basics 1 - Saving
Covering some basic topics I haven't seen elsewhere on Cody. Given an input variable 'x', save it to disk in a file named 'co...

circa 13 anni fa

Risolto

Get the length of a given vector
Given a vector x, the output y should equal the length of x.

circa 13 anni fa

Risolto

Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

circa 13 anni fa

Risolto

Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

circa 13 anni fa

Risolto

Back to basics 8 - Matrix Diagonals
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

circa 13 anni fa

Risolto

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

circa 13 anni fa

Risolto

How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

circa 13 anni fa

Risolto

Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.

circa 13 anni fa

Risolto

Find the alphabetic word product
If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....

circa 13 anni fa

Risolto

Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

circa 13 anni fa

Risolto

Make a 1 hot vector
Make a vector of length _N_ that consists of all zeros except at index _k_, where it has the value 1. Example: Input ...

circa 13 anni fa

Risolto

Test if two numbers have the same digits
Given two integers _x1_ and _x2_, return |true| if the numbers written with no leading zeros contain the same digits. That is, t...

circa 13 anni fa

Risolto

Solve the Sudoku Row
*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...

circa 13 anni fa

Risolto

Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

circa 13 anni fa

Risolto

inner product of two vectors
inner product of two vectors

circa 13 anni fa

Risolto

Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

circa 13 anni fa

Domanda

How to remove duplicates in an array
Ex: In the array x=[1 2 2 3 3 3 4 5], i want to eliminate all repeating elements (2,3) and retain non-repeating elements (1,4,...

circa 13 anni fa | 3 risposte | 0

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Domanda

How to split letters in a word into an array
Ex: In the word *'HELLO'*, extract the letters *'H' 'E' 'L' 'L' 'O'*

circa 13 anni fa | 3 risposte | 0

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Risolto

Convert a vector into a number
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

circa 13 anni fa

Risolto

Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

circa 13 anni fa

Risolto

Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

circa 13 anni fa

Risolto

Increment a number, given its digits
Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

circa 13 anni fa

Risolto

Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

circa 13 anni fa

Risolto

Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product

circa 13 anni fa

Risolto

radius of a spherical planet
you just measured its surface area, that is the input.

circa 13 anni fa

Risolto

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

circa 13 anni fa

Risolto

First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

circa 13 anni fa

Risolto

Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

circa 13 anni fa

Risolto

Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

circa 13 anni fa

Risolto

Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

circa 13 anni fa