Solved

N-Queens Checker
Picture a chessboard populated with a number of queens (i.e. pieces that can move like a queen in chess). The board is a matrix,...

13 years ago

Solved

The Tower of Hanoi
In the <http://en.wikipedia.org/wiki/Tower_of_Hanoi Tower of Hanoi problem> with 3 rods (1, 2 & 3), the goal is to move a tower ...

13 years ago

Solved

Pi Estimate 2
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation2.pdf>

13 years ago

Solved

Longest Divisor Run
Given the vector a, find the longest run of consecutive numbers that can be evenly divided by the same number d where d > 1. ...

13 years 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...

13 years ago

Solved

Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

13 years ago

Solved

Pi Estimate 1
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

13 years 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...

13 years ago

Solved

Cody Matlab Version
What is the current Cody Matlab Release? *Output:* string *Examples:* '(R2012a)' or 'R2012a' Hint: We have mo...

13 years ago

Solved

Find relatively common elements in matrix rows
You want to find all elements that exist in greater than 50% of the rows in the matrix. For example, given A = 1 2 3 5 ...

13 years ago

Solved

Create incremental spiral WITHOUT USING EVAL or FEVAL
Constructions that use feval or eval are used to cheat with cody. This test-suite tries to avoid that trick. The goal of this...

13 years ago

Solved

"mirror" matrix
Create n x 2n "mirror" matrix of this type: e.g. for n = 2 m = [1 2 2 1;1 2 2 1] e.g. for n = 3 m = [1 2 3 3 2 1...

13 years ago

Solved

polar inertia
given locations of a set of unit masses on complex plane, find polar moment of inerta about the origin. for example output 4 if ...

13 years ago

Solved

DNA Pattern Match: Performance Metric - Speed
The Challenge is to Rapidly find matches of DNA sequences, Length=6, in a 1,800,000 long DNA file. At <http://imacst.com/issu...

13 years ago

Solved

Find: Faster Alternatives for Large Sorted/Unique Vectors
The Challenge is to create faster Find methods for large unique ascending vectors. Methods exist that are 1000 times faster t...

13 years ago

Solved

Ordinal numbers
Given an integer n, return the corresponding ordinal number as a character string. For example, ord(1)='1st' ord(2)=...

13 years ago

Solved

Convert a structure into a string
Convert the contents of each fields into a string. Example with an input structure s with 2 fields : s.age = '33' s....

13 years ago

Solved

Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

13 years 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';

13 years ago

Solved

It dseon't mettar waht oedrr the lrettes in a wrod are.
An internet meme from 2003 (read more <http://www.snopes.com/language/apocryph/cambridge.asp here>) asserted that readers are re...

13 years ago

Solved

1D DCT-II transform.
Implement a function that calculates 1D Discrete Cosine Transform <http://en.wikipedia.org/wiki/Discrete_cosine_transform#DCT-II...

13 years ago

Solved

Find mistyped words in text (mixed-up letters)
Mistyped words are a regular occurrence in emails, texts, status updates, and the like. Many times, people send or post a second...

13 years ago

Solved

Nilpotent matrix
Check if matrix A is <http://mathworks.com/ nilpotent>.

13 years ago

Solved

New Cody Time-Out Time
Determine the New Cody Time-Out Time Consume the Maximum Possible Time without Timing out. *Score:* 60 (sec) - Time (sec) ...

13 years ago

Question

Is this a Possible MATLAB bug? (Further strange Behavior)
I have encountered a strange behavior while solving one of the problems in Cody. I have simplified the code into the following ...

13 years ago | 4 answers | 4

4

answers

Solved

Unique - Very Very Large Numbers
Given a vector column, with some very large numbers, create the ascending sort and unique vector. *Input:* A (column vector)...

13 years ago

Solved

Mimic foldl in functional programming
Mimic the higher-order function |foldl| ( <http://en.wikipedia.org/wiki/Fold_%28higher-order_function%29 Wikipedia:Fold (higher-...

13 years ago

Solved

chance in percent for minimum K heads when a good coin is tossed N times?
For example, chance is 100% for minimum 0 heads when a coin is tossed 7 times. Chance is 50% for minimum 2 heads when a coin is...

13 years ago

Solved

intersection of matrices
Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identi...

13 years ago

Solved

Volume of this donut
Given hole diameter a, and outermost diameter b, determine the volume y of the resulting donut.

13 years ago