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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...

9 mesi 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...

9 mesi 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...

circa 2 anni ago

Solved

Sum two matrices
Take two incoming matrices, and sum them

circa 2 anni ago

Solved

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

circa 2 anni ago

Solved

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

circa 2 anni ago

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

circa 2 anni ago

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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 3 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 3 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 3 anni ago

Solved

test_first
just to test

circa 3 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 3 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 3 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 3 anni ago

Solved

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

circa 3 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 3 anni ago

Solved

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

circa 3 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 3 anni ago

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

circa 3 anni ago

Solved

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

circa 3 anni ago

Solved

sum as columns
sum as columns.

circa 3 anni ago

Solved

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

circa 3 anni ago

Solved

y=x
y=x

circa 3 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 3 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 3 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 3 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 3 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 3 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 3 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 3 anni ago