Roie Knaanie

Hebrew University of Jerusalem

Active since 2022

Followers: 0 Following: 0

Lecturer at the Hebrew University of Jerusalem, Software and Programming languages

Programming Languages:
Python, Java, MATLAB, Perl
Spoken Languages:
English
Professional Interests:
Python with MATLAB, Algorithm Acceleration and Code Generation, Computational Biology, Computer Science

Statistics

View badges

Feeds

Solved

Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

6 hours 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; ...

6 hours ago

Solved

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...

6 hours ago

Solved

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

6 hours 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; ...

6 hours 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 ...

6 hours 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; ...

6 hours ago

Solved

Making change
Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = 2...

1 day ago

Solved

Space Saver
Remove all characters that are below a space in ASCII value.

1 day ago

Solved

Reverse the Words (not letters) of a String
*Description* Change the words of a string such that the words appear in reverse order. You may assume that the string is a n...

1 day ago

Solved

Convert String to Morse Code
Convert a given string to international <http://en.wikipedia.org/wiki/Morse_code Morse Code> * Strings will only have [A-z], ...

1 day ago

Solved

Decimal Comparison
*Background* A utility of particular interest to Cody and other MATLAB ventures is comparing the equality of two numbers. In ...

1 day ago

Solved

It dseon't mettar waht oedrr the lrettes in a wrod are.
An internet meme from 2003 (read more here) asserted that readers are relatively insensitive to letter order in words, so long a...

1 day ago

Solved

Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifm...

1 day ago

Solved

Find matching parenthesis
One of the most indispensable things about a great text editor for programming is the ability to quickly jump between matching p...

1 day ago

Solved

Add more zeros
Find code that adds one 0 to each sequence of 0 in a string (composed with only 0 or 1). For example: '1010' -> '100100' ...

1 day ago

Solved

Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

2 days ago

Solved

Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

2 days ago

Solved

Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

2 days ago

Solved

Find the area of a triangle
Given a triangle with a base b and height h, return the triangle area.

2 days ago

Solved

Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.

2 days ago

Solved

cube of number
find cube of number

2 days ago

Solved

square of a number
find square of a given number

2 days ago

Solved

Remove the small words from a list of words.
Your job is to tidy up a list of words that appear in a string. The words are separated by one or more spaces. Remove all words ...

2 days ago

Solved

The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

2 days ago

Solved

Nth root of a number
Given an input and a number N, find the Nth root of the number(s)

3 days ago

Solved

Remove white spaces at the end of the input string
Remove all trailing white spaces at the end of the input strings

3 days 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 is n=4 th...

3 days ago

Solved

find number of times of occurrence of the most frequent number in a row vector
In a given row vector, find the number of times a mode of a row vector has occurred example: in [2 5 5 5 5 3], output is 4 ...

3 days ago

Solved

Find prime number couples
Given a vector a, which will always contain at least one pair of prime numbers couple, return a matrix called 'couple' in which ...

3 days ago

Roie Knaanie

Hebrew University of Jerusalem

Statistics

Community

Cody

Cody

Cody

Cody

Cody

Cody

Cody

Cody

Cody

Cody

Cody

Feeds