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Multiply a column by a row
* Given a column vector C and and a row vector R. * Output a matrix M. * Every column of M equals to C multiplied by correspon...

fast 10 Jahre vor

Gelöst

Specific Element Count
Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

fast 10 Jahre vor

Gelöst

does it touch ?
given a sentence, tell how much it touches. input : string output : how much it touches touching : a bilabial phoneme d...

fast 10 Jahre vor

Gelöst

Einsteinium-253 decay
Radioactive Einsteinium-253 has a half-life of 1,768,608 seconds. Given 1000mg of Einsteinium-253 at t=0 days, how much is lef...

fast 10 Jahre vor

Gelöst

Compute change
A cashier distributes change using the maximum number of five dollar bills, followed by one dollar bills. Given amountToChange, ...

fast 10 Jahre vor

Gelöst

Nth root.
* Assign outValues with the nth root of the inValues, the root is specified by rootValue

fast 10 Jahre vor

Gelöst

Currency conversion
A currency exchange booth offers an exchange rate of 119.771 Japanese yen for 1 US dollar. The currency exchange booth rounds do...

fast 10 Jahre vor

Gelöst

Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

fast 10 Jahre vor

Problem

Modified Upper Matrix Mock
Given a vector v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 0 3 6 9 11; 0 0 6 9 11; 0 0 0 9 11; 0 0 0...

fast 10 Jahre vor | 1 | 55 Lösungsvorschläge

Problem

Circular Shift Me
Given a vector v=[1 3 6 9 11], circular shift them while iterating m=[1 3 6 9 11; 11 1 3 6 9; 9 11 1 3 6; 6 9 11 1 3; 3 6 9 1...

fast 10 Jahre vor | 1 | 61 Lösungsvorschläge

Gelöst

Strangest ways to get 0
Propose your non-trivial way to get 0. Look mine's, and try to do your best!

fast 10 Jahre vor

Gelöst

Solving a quadratic equation
Given a, b and c, Return the solution of the following quadratic equation: a*x^2 + b*x + c = 0.

fast 10 Jahre vor

Gelöst

Polynomial division
Divide a polynomial u by polynomial v and return the quotients only. Example: u = x^4+3*x^3+5*x+3 v = x^2+1 Answer: ...

fast 10 Jahre vor

Gelöst

Additive persistence
Inspired by Problem 2008 created by Ziko. In mathematics, the persistence of a number is the *number of times* one must apply...

fast 10 Jahre vor

Gelöst

Accessing elements on the diagonal
Access the diagonal elements of a matrix without 'diag' function

fast 10 Jahre vor

Gelöst

square root
Find the square root (y) of an input (x).

fast 10 Jahre vor

Gelöst

Multiple if statements
Write an if-statement that subtracts 5 from outputValue if amplitudeResponse is greater than 10. Write a second if-statement tha...

fast 10 Jahre vor

Gelöst

Food safety
Assign safeTemperature with 1 if foodTemperature is less than 40 or greater than 165.

fast 10 Jahre vor

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Check bounds
Assign inRange with 1 if userWeight is greater than 100 and less than or equal to 200.

fast 10 Jahre vor

Gelöst

Genetic markers test
Assign testResult with 1 if either geneticMarkerA is 1 or geneticMarkerB is 1. If geneticMarkerA and geneticMarkerB are both 1, ...

fast 10 Jahre vor

Gelöst

convert?
* Given a string containing a number followed by pounds or kgs, for example: * 'Billy lost 22 pounds in four weeks.' * 'Maria ...

fast 10 Jahre vor

Gelöst

Vectorizing, too easy or too hard?
Please insert a . before any ^, * or / in the string. That's it!!

fast 10 Jahre vor

Gelöst

deconvolution
* Suppose there is a vector v like [1 0 0 -1], representing polynomial coefficients. * In this example, the polynimial is 1*x^3...

fast 10 Jahre vor

Problem

Refresh your system of equations
Given square matrix, and solution vector, find the values of the variables Example: xyz = [1 -1 2; 0 2 5; 4 0 -3]; //x-y+2...

fast 10 Jahre vor | 4 | 53 Lösungsvorschläge

Gelöst

System of equations
Find a solution to a system of equations represented by a |n| by |n+1| matrix. For instance, [ 2 0 4; => 2*x = 4 ...

fast 10 Jahre vor

Gelöst

Distance walked 3D
suppose you go from x-y-z coordinates [3,4,2] to [0,0,2] to [0,1,2] to [1,1,2], to [1,1,20] then you walked 25 units of distance...

fast 10 Jahre vor

Gelöst

Snakes on a plane
Given the dimensions of a 2-d plane, create a matrix where a "snake" of ones occupies the plane from top left to bottom right. ...

fast 10 Jahre vor

Gelöst

Sorting
Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

fast 10 Jahre vor

Problem

N-plicate me
Modified version of duplicate and triplicate me. Repeat elements of input vector with given input n Ex: input = [1 2 3 4 5...

fast 10 Jahre vor | 4 | 76 Lösungsvorschläge

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Who knows the last digit of pi?
There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...

fast 10 Jahre vor