Community Profile # Athi

### VisAI Labs

Principal Engineer, VisAI Labs. Peak ranking: 3 (as on August, 2022 and October, 2023).

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Sort vector by number of prime factors of each element
Sort a given array based on how many prime factors each term has. Sort from least to greatest and output original values. Ex: ...

15 días hace

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Memory Map File: Access and Update
Challenge is to read data from a memory map file and also update the file. Memory Mapping allows placing large static arrays ...

15 días hace

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Get the variable value from a string and generate sum
Get the variable value from a string. Example. x = 'A=10' y = 'B=20' Result = (x+y) Result = 30

15 días hace

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Remove Duplicates
Remove duplicates from the vector of integers and display in sorted order

15 días hace

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Leonardo primes
Leonardo numbers are defined by following recurrence relation: Leonard prime is Leonardo number which is also prime (see ...

15 días hace

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Draw a triangle of ones
For any given n, return a matrix that includes a triangle of ones of height n: Example n = 3 output = [0,0,1,0,0 ...

15 días hace

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Return longest string in 1-D array of strings
Find the longest string in an array of strings. Return an empty string if the initial array is empty. If there are multiple stri...

15 días hace

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Create a column vector of n elements between a and b (both included)
Given lower limit a and an upper limit b, create a column vector of n elements inclusive of a and b. For example: a = 1, b = 4,...

15 días hace

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Is the number of 1s in a binary integer odd or even?
Your function should turn the input integers into binary form and count the number of 1s in the binary. If the number is odd, re...

19 días hace

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Find the moving-average of the elements of a vector
Example Input vector: [1 2 3 4] output vector: 1st element=1/1, 2nd element=(1+2)/2, 3rd element=(1+2+3)/3, 4th element=(1+2...

19 días hace

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Determine the winner of a goofy golf tournament
My brother and father were playing golf one day, and they caught up to a group that was part of a tournament. The group members ...

19 días hace

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Luhn's Algorithm
Luhn's Algorithm is used as a checksum for credit card numbers or similar identifiers. It can detect single-digit changes and sw...

19 días hace

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Vector slither sort!
Sort a numeric vector in the following format: [largest value, smallest value, second largest value, second smallest value, etc...

19 días hace

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Sum of 2 numbers in array
Given an array and a target sum, return true if any 2 numbers in the array sum up to the given target sum. Both numbers cannot h...

19 días hace

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Return the middle element of an NxN square matrix where N is odd
Let's say you are given an NxN square matrix where N is always going to be an odd number: x = [ 1 2 3 4 5 6 7 8 ...

19 días hace

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apply zero padding to a matrix

19 días hace

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Check if a year is a leap year or not
Return 1 if a given year is a leap year or 0 if it is not

19 días hace

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Draw a fancy '7' in a zero matrix!
Given a x-by-x matrix filled with zeros (x is odd and > 3). Use 7s to draw a number 7 into it! Like this: x = 5, y = 7 7 7 7 7...

19 días hace

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Parsing Expressions - Binary Arithmetic Operators I
Parse and evaluate expressions like these: '1 + 2' '51 - 78' '42 * 9' The only operators are +, -, *. Both argu...

19 días hace

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Find the nth composite number.
Everyone heard about the nth prime number. Let's try to find out the nth composite. For example , 1 is the first composite, 10 i...

19 días hace

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Right shift an array n times with constant space.
Right shift an array n times with constant space, that is, no extra array can be used. Right shift operation: Last element com...

19 días hace

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MinMax mapping
Given a matrix, map all the elements within a given interval. For example, a=[ 2 5 10] mapped in the interval [1,2] ...

19 días hace

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Dominant Matrix - 01
A matrix is said to be diagonally dominant if for every row of the matrix, the magnitude of the diagonal entry in a row is large...

22 días hace

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Cancel Middle
Write a function called cancel_middle that takes A, an n-by-m matrix, as an input where both n and m are odd numbers an...

22 días hace

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Double Fibonacci
double_fibonacci takes two integers, each greater than one, as input arguments (it does not have to check the format of the inpu...

22 días hace

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Make the first letter of a sentence Capital.
In this problem you will be given a string of 2 or 3 lines. Your work is to make the first letters of every line Capital. You wi...

22 días hace