Community Profile

# Doug Hull

Last seen: 11 months 前 自 2011 起处于活动状态

Formerly known as MATLABDoug during my 15 year tenure at MathWorks. Now I live in Vegas, write poker books and relieve tourists of their poker money.

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Is this a valid Tic Tac Toe State?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

5 years 前 | 4 | 113 个解题者

Is this is a Tic Tac Toe X Win?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

5 years 前 | 2 | 494 个解题者

2048 tile game
The popular 2048 game has been implemented here: http://gabrielecirulli.github.io/2048/ Given the board like this: [2...

9 years 前 | 0 | 9 个解题者

Get ranking of a combination looking for speed.
I have the numbers pulled without replacement from the set [1 2 3 4 5 6 7 8 9 10 11 12 13]; They are then ordered from least to...

9 years 前

Get ranking of a combination looking for speed.
I have the numbers pulled without replacement from the set [1 2 3 4 5 6 7 8 9 10 11 12 13]; They are then ordered from least to...

9 years 前 | 3 | 46 个解题者

Get ranking of a combination
I have the numbers pulled without replacement from the set [1 2 3 4 5 6 7 8 9 10 11 12 13]; They are then ordered from least to...

9 years 前

Get ranking of a combination
I have the numbers pulled without replacement from the set [1 2 3 4 5 6 7 8 9 10 11 12 13]; They are then ordered from least to...

9 years 前 | 1 | 44 个解题者

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

10 years 前

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

10 years 前

Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

10 years 前

Siblings of a graphics object
Given a valid, scalar, handle of a graphical object: find the set of all objects that have the same parent as the original that...

10 years 前 | 1 | 14 个解题者

Siblings of a graphics object
Given a valid, scalar, handle of a graphical object: find the set of all objects that have the same parent as the original that...

10 years 前

Implement Solitaire cipher for N long deck.
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cypher>. Given a starting permutation of numbers [1:...

10 years 前 | 1 | 17 个解题者

Implement Solitaire cipher for N long deck.
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cypher>. Given a starting permutation of numbers [1:...

10 years 前

Flag largest magnitude swings as they occur
You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

10 years 前 | 12 | 649 个解题者

How many trades represent all the profit?
Given a list of results from trades made: [1 3 -4 2 -1 2 3] We can add them up to see this series of trades made a profit ...

10 years 前 | 12 | 574 个解题者

Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

10 years 前 | 8 | 831 个解题者

Implement simple rotation cypher
If given a letter from the set: [abc...xyz] and a shift, implement a shift cypher. Example: 'abc' with a shi...

10 years 前 | 12 | 1032 个解题者

Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

10 years 前 | 8 | 242 个解题者

Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

10 years 前

Steal, Share, or Catch: Tournament of Champions
I am no longer supporting this problem. No changes will be made to put more entries in the test suite, but have fun playing any...

11 years 前 | 5 | 9 个解题者

Steal, Share, or Catch: Tournament of Champions
I am no longer supporting this problem. No changes will be made to put more entries in the test suite, but have fun playing any...

11 years 前

Steal, Share, or Catch
You, I, and a few other characters are going to play a game of *Steal, Share or Catch*. We are going to play it 10,000 times vs...

11 years 前 | 4 | 78 个解题者

Steal, Share, or Catch
You, I, and a few other characters are going to play a game of *Steal, Share or Catch*. We are going to play it 10,000 times vs...

11 years 前

Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

11 years 前

Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

11 years 前

Cumulative probability of finding an unlikely combination
This is a supplemental problem to the <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition CryptoMath> ...

11 years 前 | 2 | 32 个解题者

Cumulative probability of finding an unlikely combination
This is a supplemental problem to the <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition CryptoMath> ...

11 years 前

Getting the absolute index from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...

11 years 前

Getting the absolute index from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...

11 years 前 | 2 | 233 个解题者