Athi

VisAI Labs

Active since 2009

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Principal Engineer, VisAI Labs. Peak ranking: 2 (as on 15th Jan, 2024).

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Count of Unique Elements of a Vector
Count the number of times each unique element appears in a vector. Example: Input x = [2 9 1 2 4 9 2] Output y = [1 1; 2 3; 4...

10 maanden ago

Solved

Draw 'W'
For any given n, return a matrix of height n and width 4n-3 containing a W of ones. Example: n=2 ans= [1 0 1 0 1 0 1 0 1 0...

10 maanden ago

Solved

Determine pressure altitude using field elevation and altimeter setting
Given an airfield's elevation in feet (ft) and the current altimeter setting in inches of mercury (inHg), calculate the pressure...

10 maanden ago

Solved

swap sign sum & multiply castles
It is an easy problem, if you know the answer. Given a square matrix of NxN ordinary numbers. Initially place N identical indi...

10 maanden ago

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Flip the diagonal values
Write a program that flip the elements of main diagonal , upper and lower diagonal values of a sqare matrix. For example if a ...

10 maanden ago

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Remove a specific character with another
Remove any (-) dash sign with (_) underscore Ex = 'The-Journey-of-thoudsands-miles-starts-with-a-single-step' y = 'The_Jour...

10 maanden ago

Solved

Swap between first and last
The idea is to swap between first and last row Ex = [1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; ...

10 maanden ago

Solved

Swap between first and last column
The idea is to swap between first and last column Ex = [1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 ...

10 maanden ago

Solved

Swap between columns
The idea is to swap between second and second last column Ex = [1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; ...

10 maanden ago

Solved

Swap between rows
The idea is to swap between second and second last row Ex = [1 2 3 4 5; 5 4 3 2 1; 1 2 3 4 5; 1 2 3 4 5; ...

10 maanden ago

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Remove a specific column with max value
Remove the column that contain the max value in the matrix?

10 maanden ago

Solved

Remove a specific row with max value
Remove the row that contain the max value in the matrix?

10 maanden ago

Solved

Remove a specific row with min value
Remove the row that contain the min value in the matrix?

10 maanden ago

Solved

Remove a specific column with min value
Remove the column that contain the min value in the matrix?

10 maanden ago

Solved

A sequence of Ones
You are given number(s) with all digits - 1. Your answer will depend on the count of 1 in the given number, for example - x1...

10 maanden ago

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Determine if input is a Harshad number
In mathematics a harshad number (or Niven number) in a given number base is an integer that is divisible by the sum of its digit...

10 maanden ago

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Median filter over three values
Implement 1-D median filter over input vector x as described: Moving window size is 3 Output is middle/central value in moving...

10 maanden ago

Solved

String vowel manipulation
Given a string, find all the vowels and shift them to the end of the string in the same order as they are found.

10 maanden ago

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Determine if a number is a cool number
A number is considered cool if it is 3 digits, has a 5 in it, and is divisible by 4.

10 maanden ago

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Palindrome String
Determine if the inputted string is a palindrome. That is, the string is the same forwards as it is backwards. For example: ...

10 maanden ago

Solved

Palindrome vector
Check if a given vector is Palindrome. Example, [1 2 54 32 45 5 33 456 45 456 33 5 45 32 54 2 1]

10 maanden ago

Solved

Range of Values in a Matrix
Create a function that accepts a matrix of real numbers as input and returns the range of the values contained in the matrix. Th...

10 maanden ago

Solved

Getting values from a vector
This exercise is for finding the values that meet your criteria. a = [-5 28 7 83 73]; b = 23 ; c = (a > b) Then : c = ...

10 maanden ago

Solved

Summation of Non Zeros Numbers in String Variable
Find the Summation of Non Zeros Numbers in String Variable The input : x = '100205' The Output : y = 8

10 maanden ago

Solved

Find Rows with Specift Properities
Delete rows with specific properites as following: Find rows that have a negative value in any element of the row and delete it...

10 maanden ago

Solved

convert 2D array of ones and zeros to checkerboard array of [1,2] where the original array was ones and zero elsewhere
Given a 2D array of ones and zeros, generate an equivalent sized checkerboard array of ones and twos. The checkerboard pattern s...

10 maanden ago

Solved

How many ways?
Create a program to determine in how many ways can a regular n-gon be divided into n-2 triangles?

10 maanden ago

Solved

Modulo of sum of square of first n primes with 24

10 maanden ago

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sum of binomial series

10 maanden ago

Solved

How many palindromes?
* Given a set of letters, count all possible palindromes, using all of those letters. * For example, if the set is {'A' 'A' 'A'...

10 maanden ago

Athi

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