# Stefan Abendroth

Senior Expert Mobility Solutions

**Programming Languages:**

Python, C++, Javascript, MATLAB, Visual Basic

**Spoken Languages:**

English, French, German

**Professional Interests:**

Systems Engineering, Networks, Automotive, Communications

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**Content Feed**

Solved

The sliding puzzle: 3D

This is an extension of problem 42842. In this case, the puzzle is three-dimensional and is of size 3x3x3. Of the 27 positions i...

6 dagen ago

Solved

Cumulative minimum of an array

Find the cumulative minimum of an array without using the built-in function <http://www.mathworks.com/help/matlab/ref/cummin.htm...

14 dagen ago

Solved

Cumulative maximum of an array

Find the cumulative maximum of an array without using the built-in function cummax (and a few others). Your function should act ...

15 dagen ago

Solved

Reverse Boggle

*Description* In the classic Parker Brothers game <http://en.wikipedia.org/wiki/Boggle Boggle>, players find words from a 4x4...

16 dagen ago

Solved

Renaming a field in a structure array

MATLAB has a <http://www.mathworks.com/help/techdoc/ref/setfield.html setfield> and a <http://www.mathworks.com/help/techdoc/ref...

16 dagen ago

Solved

Counting Money

Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

16 dagen ago

Solved

Reverse Run-Length Encoder

Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

16 dagen ago

Solved

Make a Palindrome Number

Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

16 dagen ago

Solved

Remove all the words that end with "ain"

Given the string s1, return the string s2 with the target characters removed. For example, given s1 = 'the main event' your ...

19 dagen ago

Solved

Function Iterator

Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

19 dagen ago

Solved

Which doors are open?

There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...

19 dagen 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 ...

19 dagen ago

Solved

Balanced number

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

19 dagen ago

Solved

All capital?

Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

19 dagen ago

Solved

Rotate array 90 degrees

Rotate the given matrix by 90 degrees. Example, A = [1 2 3 ; 4 5 6 ] B = rotated(A) = [ 3 6; 2 5; 1 4 ]

19 dagen ago

Solved

Find the palindrome

Given the string a, find the longest palindromic sub-string b. So when a = 'xkayakyy'; you should return b = 'kayak';

20 dagen ago

Solved

Clean the List of Names

Given a list of names in a cell array, remove any duplications that result from different capitalizations of the same string. So...

20 dagen ago

Solved

Implement a ROT13 cipher

Replace each character in string s1 with the character that is shifted 13 positions from it (wrap back to the beginning if neces...

21 dagen ago

Solved

Sums with Excluded Digits

Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

21 dagen ago

Solved

DNA N-Gram Distribution

Given a string s and a number n, find the most frequently occurring n-gram in the string, where the n-grams can begin at any poi...

22 dagen ago

Solved

Return a list sorted by number of occurrences

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

26 dagen ago

Solved

Breaking Out of the Matrix

Do you want to take the Red Pill, or the Blue Pill? If you take the Blue Pill, you will simply pass along to the next problem...

26 dagen ago

Problem

IQpuzzler Challenge #2: Find all possible solutions on an empty 4-by-5 board with 5 pieces, rotating and flipping pieces allowed

We are playing a simplified version of IQpuzzler, with a smaller board of 4-by-5 spaces and just 5 pieces, as shown in the pictu...

27 dagen ago | 0 | 2 solvers

Solved

love is an n-letter word

Given a list of *N words*, return the *N-letter word* (choosing one letter from each word) with the property of having the least...

28 dagen ago

Solved

Make a function that returns its own character count

Write a function that returns a 128 element vector with an accurate inventory of the ASCII characters in its own function file. ...

28 dagen ago

Problem

IQpuzzler Challenge #1: Find all possible solutions with 2 pieces already on the board and fixed orientation of all other pieces

IQpuzzler is a one player board game. The 2D version provides a rectangular board with 5-by-11 spaces and 12 colored pieces (con...

29 dagen ago | 0 | 1 solver

Problem

IQpuzzler Preparation #3: Detect isolated groups of zeros in a matrix

Return true if any isolated groups of zeros (shapes 1x1, 1x2, 2x1, 1x3, 3x1 or 2x2) are present on the board, with all verticall...

30 dagen ago | 1 | 3 solvers

Problem

IQpuzzler Preparation #2: Detect isolated zeros in a 2D matrix

Return true if any isolated single zeros are present in the input M-by-N matrix (zeros with all adjacent elements being non-zero...

ongeveer een maand ago | 0 | 4 solvers

Problem

IQpuzzler Preparation #1: Find all possible orientations of a matrix

Return all non-identical orientations of a 2-D matrix that can be produced by rotating or flipping it. Input is an M-by-N matri...

ongeveer een maand ago | 0 | 2 solvers