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Backward Substitution
Solve a upper triangular linear set of equations as described in the following link: http://www.people.virginia.edu/~teh1m/cody/...

casi 6 años hace

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Skyscrapers - Puzzle
The Skyscraper puzzle challenge comes from <http://logicmastersindia.com/home/ Logic Masters India> and <http://www.conceptispuz...

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Fill-a-pix - Solver (basic)
<http://www.conceptispuzzles.com/index.aspx?uri=puzzle/fill-a-pix/rules Fill-a-pix> is a logic puzzle game similar to Pic-a-Pix ...

casi 6 años hace

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Fill-a-pix - Solution Checker
<http://www.conceptispuzzles.com/index.aspx?uri=puzzle/fill-a-pix/rules Fill-a-pix> is a logic puzzle game similar to Pic-a-Pix ...

casi 6 años hace

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Word Search Solver
There are n words (minimum of three letters in each word) supplied with a given word search board. The answer will contain n row...

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Play Tic Tac Toe : No Losses Allowed
Let's play a friendly game of Tic Tac Toe Create an efficient algorithm to Never Lose. The Player may be either the first...

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Play Tic-Tac-Toe: Easy Bots
Interactive Tic-Tac-Toe game versus the test suite algorithms. The contest will be 50 games of Computer first and 50 games of...

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Given a number between 1-365 (a day number in a non leap year) , find what day of what month it is.
For a given number between 1-365 (a day number in a non leap year), you should check which day of which month it is. for exam...

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Cosine frequency doubler
Given an input vector containing a cosine wave of unknown frequency, produce an output vector of the same length containing a co...

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Singularity v5 (with apologies to the true hack masters)
Since the vast majority of recent problems are how to hack Cody, here's another one, with an even more malformed test suite than...

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Miles to go before I sleep
Recently, my car's odometer passed 56789. Given an odometer reading, output how many miles need to be driven to get the next mi...

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Insert certain elements into a vector.
We start with vector V. Some values W will be inserted into V, at positions U. Say, |V| contains |[1 2 3 4 5]| and |W| is |[0...

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Rolling maximums above a threshold
You are given either a vector or a 2-D matrix M and a threshold value of t. Write a script that will calculate how many times t...

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Initialize a varible with an integer value from a another variable which is assigned with a character value.
Initialize a varible with an integer value from a another variable which is assigned with a character value. ex: Test = 'c'...

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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

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Generalized sorting
Write generalized sort function |sortg()| that sorts array elements in “ascending” order with given comparison funct...

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A Poker Hand
Texas Hold ‘Em is a classical card game. In this problem, we are concerned with determining the probability of attaining a certa...

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Fraction of a fraction of a ...
One sort of brainteaser problem is a math problem wherein you are asked what the given fraction of a fraction of a ... number is...

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singularity 2.0 (hard)
This problem is the continuation of problem <http://www.mathworks.com/matlabcentral/cody/problems/1769-singularity-2-0-easier Si...

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singularity 2.0 (really hard)
This problem is the continuation of problem <http://www.mathworks.com/matlabcentral/cody/problems/1770-singularity-2-0-harder Si...

casi 6 años hace

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3D indexes
Generalisation in 3 dimensions of the <http://nl.mathworks.com/matlabcentral/cody/problems/43117-2d-indexes Problem 43117. 2D I...

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2D Indexes
Given in input the maximum degree P, the algorithm furnishes a ordered list of two dimensional vectors [i,j] i,j>=0 such that i+...

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Linear Least Squares (L2 fitting problem )
Given a set of real measurements (x(i), y(i)) find a line sol(1)x + sol(2) (more specifically furnish the vector with...

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Take it out
Consider the integer number sequence N (1 to infinity). After each iteration, take out the (k+1)th elements; where k is the n...

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Wythoff Sequence
Find the lower Wythoff sequence up to n. For more information, <https://oeis.org/A000201>

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find subscripts from linear index
a matrix and the linear index of an element is given as input. find the subscripts of that element. if linear index=3 , outp...

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Kissing Circles-01
Three circles are mutually tangent to each other and also to a line. find the radius of the smallest circle. The radius of th...

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Gapful numbers
If a number is divisible by the number formed by the first and last digit of that number then it is defined as a gapful number. ...

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Diagonal Pattern
For a positive integer |n|, return an |nXn| matrix |mat| such that the value of each element in row |i| and column |j| is given ...

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Generate Golomb's sequence
Generate Golomb's sequence up to the given number. If n=4, then seq = [1, 2, 2, 3, 3, 4, 4, 4] If n=6, then s...

casi 6 años hace