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# Zikobrelli

1.546 total contributions since 2013

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Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
For a row vector: V=[7 1 2 -3] there is one sign change (from 2 to -3). So, the function you write must return N=1. F...

circa 2 anni ago

Solved

Get all prime factors
List the prime factors for the input number, in decreasing order. List each factor. If the prime factor occurs twice, list it as...

circa 2 anni ago

Solved

Television Screen Dimensions
Given a width to height ratio of a TV screen given as _w_ and _h_ as well as the diagonal length of the television _l_, return t...

oltre 3 anni ago

Solved

Sum two matrices
Take two incoming matrices, and sum them

oltre 3 anni ago

Solved

Matrix Ax=B problem
Take a incoming A and B vector, and solve for x

oltre 3 anni ago

Solved

Resizing Matrices
Take an 4x3 matrix, and resize it to a 2x6 matrix

oltre 3 anni ago

Solved

Vector indexing: lower than mean
Find all values in a vector lower than the mean of the vector

oltre 3 anni ago

Solved

determine the sum of the squares
if x = 4, the solution will be: y = 1^2+2^2+3^2+4^2=1+4+9+16 = 30.

circa 4 anni ago

Solved

Energy-Mass Equivalence
Given input enegy of the object, E, and constant c = 300,000,000, find the mass of the object.

circa 4 anni ago

Solved

Given a larger and smaller matrix, perform element-by-element multiplication on the smaller matrix and a sub-matrix of the large...

circa 4 anni ago

Solved

test_first
just to test

circa 4 anni ago

Solved

0, 2, 0, -2, 0, 2, 0, -2, ...
Generate the first n terms of a periodic sequence defined as f(x) = 0, 2, 0, -2, 0, 2, 0, -2, ..., for x = 1, 2, 3, 4, 5, 6...

circa 4 anni ago

Solved

Change on Spiral Matrix
n>=3, generate a matrix of nth such that n^2 is the max number, and max number must be in [1,1] or [end, end]. One example will ...

circa 4 anni ago

Solved

Change input vector
If a input vector is [3, 2, 6, 1, 6], the output vector is [3, 2, 6, 1, 6] + [1, 2, 3, 4, 5] = [4, 4, 9, 5, 11].

circa 4 anni ago

Solved

multiple 2
function y = your_fcn_name(x) y = 2*x; end

circa 4 anni ago

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basics -making a matrix
make a matrix which contains input x as the last element. the intervals should be +1 ex) input = 5 output= [0 1 2 3 4 5] ex)...

circa 4 anni ago

Solved

determine if
determine if the elements of a matrix is a nan and return true

circa 4 anni ago

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sum all the elements
sum all the elements in the matrix ex) x=[1 2 3 4; 5 6 7 8; 9 10 11 12] y=78

circa 4 anni ago

Solved

cheating technique1
in these cody problems, there is a way to cheat. find out how people cheat.

circa 4 anni ago

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find a number (cheat)
find a number input^5 = input the out put should be the number. try cheating

circa 4 anni ago

Solved

sum as columns
sum as columns.

circa 4 anni ago

Solved

cheating technique2
there are some ways to get hints just by looking at the test suits to cheat. try.

circa 4 anni ago

Solved

y=x
y=x

circa 4 anni ago

Solved

'Price of pizza!'
If you want to check pizza's price, try this! price is proportional to its volume, so you have to multiply 0.1(\$) to pizza's v...

circa 4 anni ago

Solved

Pairwise column flip
Given matrix *M_in*, flip every pair of columns. So if *M_in* is 1 2 3 4 1 2 3 4 then *M_out* is 2 1 4 3 2 1 4 3 ...

circa 4 anni ago

Solved

Implement a bubble sort technique and output the number of swaps required
A bubble sort technique compares adjacent items and swaps them if they are in the wrong order. This is done recursively until al...

circa 4 anni ago

Solved

Find last zero for each column
Given a numeric array of arbitrary size, return the row index of the last zero for each column. If a column contains all nonzero...

circa 4 anni ago

Solved

Return the length of the longest word in the string.
Example: Input s='A fractal is a natural phenomenon or a mathematical set that exhibits a repeating pattern that display...

circa 4 anni ago

Solved

create a square matrix
create a [n*n] matrix. example: mat(4)= [ 1 4 9 16 4 4 9 16 9 9 ...

circa 4 anni ago

Solved

Flipping a Matrix
Flipping matrix up and down. If a central row is exists, leave it, and flip remaining rows. Example Mat = magic(3) ...

circa 4 anni ago