Vitaly Lavrukhin
Samsung
463 total contributions since 2012Professional Interests: Deep Learning, Computer Vision, Natural Language Processing
Vitaly Lavrukhin's Badges
Solve all the problems in Cody Challenge
Awarded to Vitaly Lavrukhin on 14 Mar 2013
Comment on a problem or solution
Awarded to Vitaly Lavrukhin on 23 Nov 2012
Create a problem
Awarded to Vitaly Lavrukhin on 14 Jul 2012
Like a problem or solution
Awarded to Vitaly Lavrukhin on 10 Jul 2012
Solve a problem with a best solution
Awarded to Vitaly Lavrukhin on 28 Jun 2012
Be the first to solve a problem
Awarded to Vitaly Lavrukhin on 27 Jun 2012
Solve a problem for the first time
Awarded to Vitaly Lavrukhin on 13 Jun 2012
Solved
Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...
environ 7 ans ago
Solved
Volume and area of a sphere
Input(r) - radius Output([v,s]) - volume and area
environ 7 ans ago
Solved
sum of first 'n' terms
Given n=10, find the sum of first 'n' terms Example: If n=10, then x=1,2,3,4,5,6,7,8,9,10. The sum of these n=10 terms is 55...
environ 7 ans ago
Solved
Alternating sum
Given vector x, calculate the alternating sum y = x(1) - x(2) + x(3) - x(4) + ...
environ 7 ans ago
Solved
Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.
environ 7 ans ago
Solved
Is it a number?
Determine if input is numeric. If it is,output is 1; if it is not, output is 0.
environ 7 ans ago
Solved
Who invented zero?
We know the importance zero in computer science, mathematics... but who invented zero? Clue: He was the first in the line ...
environ 7 ans ago
Solved
Generate a NaN...on purpose
The goal is to create a function that will return a single "NaN" without using the nan function. I am interested to see how many...
environ 7 ans ago
Solved
Return elements unique to either input
Given two numeric inputs a and b, return a row vector that contains the numbers found in only a or only b, but not both. For ex...
plus de 7 ans ago
Solved
Unit Matrix
Given n, you should return an n-by-n unit matrix. Example: If input is n=2 then A = [ 1 0 0 1 ] If input ...
plus de 7 ans ago
Solved
Returning a "greater than" vector
Given a vector, v, return a new vector , vNew, containing only values > n. For example: v=[1 2 3 4 5 6] n=3 vNew =...
plus de 7 ans ago
Solved
Fahrenheit to Celsius using multiple statements
Given a Fahrenheit value F, convert to a Celsius value C. While the equation is C = 5/9 * (F - 32), as an exercise use two state...
plus de 7 ans ago
Solved
Pizza value using expression with parentheses
Pizza prices are typically listed by diameter, rather than the more relevant feature of area. Compute a pizza's value (cost per ...
plus de 7 ans ago
Solved
Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...
plus de 7 ans ago
Solved
Find the position of last minimum value in an integer array with numbers
If x = [2 6 4 9 -10 3 1 5 -10] then the output should be 9, because last minimum value (-10) lies at the 9th position.
plus de 7 ans ago
Solved
Find the position of first minimum value in an integer array with numbers
If x = [2 6 4 9 10 3 1 5 1] the the output should be 7, because the first minimum value (1) lies at the 7th position.
plus de 7 ans ago
Solved
Find the maximum two numbers of every column of a matrix
Find the maximum two numbers of every column of a matrix. Example: If we input a matrix A = [ 1 2 4 6 0 3 ...
plus de 7 ans ago
Solved
Create a two dimensional zero matrix
You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros. Exam...
plus de 7 ans ago
Solved
click away
Write a function that clicks on a GUI button. *Description*: Some times one wishes to use Matlab to automate some time con...
plus de 7 ans ago
Solved
Binary
Given a positive, integer n, create a function that returns the respective binary number in the form of a vector. Example: ...
plus de 7 ans ago
Solved
Calculate FFT
Calculate the fft manually, without using matlab's builtin function. No cheating allowed.
plus de 7 ans ago
Solved
Create incrementing array
Given a and b generate an output matrix as shown in following examples: a=2 b=5 output=[2 20 200 2000 20000] a=4 b...
plus de 7 ans ago
Solved
Is there a GPU Device?
Return true if there is a supported GPU device available on the Cody computer.
plus de 7 ans ago
Solved
Calculate the peak value of square wave
Given the peak value of sine wave, calculate corresponding peak value of square wave, if both have same RMS voltage.
plus de 7 ans ago
Solved
Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.
plus de 7 ans ago
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