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Zikobrelli

1,546 2013 年以降の合計貢献数

Zikobrelli's バッジ

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...

11ヶ月 前

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...

11ヶ月 前

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...

2年以上 前

Sum two matrices
Take two incoming matrices, and sum them

2年以上 前

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

2年以上 前

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

2年以上 前

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

2年以上 前

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.

3年弱 前

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

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

test_first
just to test

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...

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 ...

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].

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

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)...

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

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

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

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

sum as columns
sum as columns.

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

y=x
y=x

'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...

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 ...

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...

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...

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...

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

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