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Which way to go?
Given an m*n grid, How many ways are there to go from upper left corner to the lower right one? You can only move right...

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Number Persistence
A number's persistence is the number of steps required to reduce it to a single digit by multiplying all its digits to obtain a ...

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Slicing the cube
A bored matlab enthusiast has a cube with volume n^3. He decides to paint the entire surface of the cube red. Then, with slices...

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How many rectangles in a grid ?
How many rectangles are there in an m × n grid ? For example, if m=1 & n=2, we have 3 rectangles.

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Grid traversal
Given a line defined by (x1,y1) & (x2,y2),return the number of squares that the line crosses on the grid (a square is 1x1). ...

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007: Chinese Barrack Invasion
*MISSION:* Successfully invade a military barrack located in China. *WARNING:* There is a row of _n_ security switches protec...

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Graph Algorithms 3: Number of Connected Components
Given an adjacency matrix of a simple undirected graph, find the number of connected components.

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Průměr z výběrového souboru
Napište funkci, která vrátí průměr z hodnot vektoru data. Např data = [1, 2, 3, 4, 5, 6, 7, 8, 9] je prumer = 5.

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Decrypt a secret message!
The crypto system in question is based on phone keyboard. We need two numbers in order to decrypt a word. First number represent...

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Peg Solitaire - Apply Move
About Peg Solitaire . Previous Problem. Consider inital board; If we move the peg located on (4,6) to the left (4) directio...

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Pattern find
FInd the pattern x = 3; \y=1558 x = 10; \y= 2657548

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Kurosu solver
This problem is related to <https://www.mathworks.com/matlabcentral/cody/problems/44657-kurosu-checker Problem 44657>. The ga...

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Factorizing a number into a given number of factors
Given a positive integer, n, and another positive integer, b, return a matrix, M, of width b, with the following properties: (a)...

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Kurosu checker
The game of Kurosu is simple. A square grid contains cells that can be filled with either a 'X' or an 'O', similarly to a tic-ta...

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Mean number of letters per word (Hard)
The previous problem in this series is <https://www.mathworks.com/matlabcentral/cody/problems/44852-mean-number-of-letters-per-w...

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Optimally fill a container with elements of different sizes
Given a row vector V of different numerical values and a size limit L, return a 1x2 vector A, containing (a) the largest sum of ...

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Characterize fluid flow in a pipe as to laminar or turbulent
In fluid mechanics, characterizing the flow in a pipe is essential to predicting its behavior. The flow pattern can either be la...

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¿Es una parábola?
Dados los datos de las magnitudes _*x*_ e _*y*_, crear una función que permita conocer si se trata de una parábola o no, indican...

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Permute the unique values of a vector without sorting
Given a vector A, return the matrix B, wherein each row contains a permutation of the unique values in original vector while ret...

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Update course numbers and abbreviations
Suppose that the educational institution where you teach purchases new software to handle many essential functions, including co...

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Finding the next number in a number list, are you able to crack it!
So it goes like this, I give a number list and you find the next value! I found a way to do it, just wondering how many other...

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Find same numbers touching each other...
So the goal here is to find any number that is equal to its immediate neighbors and mark it true. Here is some examples: x...

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USC Fall 2012 ACM : Code Word Minimum Flipped Bits
This Challenge is to solve Question A of the <http://contest.usc.edu/index.php/Fall12/Home USC ACM Fall 2012 Contest>. Given ...

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Dice face matrix!
This is dice simulator, but instead of making a random die number, you will receive an "pre-rolled" number in and spit out a mat...

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Frequency Analysis of Text
Frequency analysis is a common task in cryptoanalysis. It is essentially counting the occurrences of alphabets (regardless of ca...

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Usage of java.math : N Choose K with unlimited precision
Calculate the binomial coefficient nchoosek with full accuracy. This challenge may use the wonderful word of java.math that allo...

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Molecule Atomic Wt (CHONS) Molecules
Given a molecular equation string determine its atomic weight. Limited atoms of C H O N and S where wts are rounded to [12 1 16...

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Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.
For example, if n=2 (maximum value), the output matrix should be [1 1 1 1 1; 1 2 2 2 1; 1 2 1 2 1; 1 2 2 2 1; 1 1 ...

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Time and Variable mapping and matching
There is a 6X5 cell array where * 1st column represents time values * 2nd and 3rd column represent variables and their value...

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Implement full adder circuit
Implement full adder circuit (Full Adder) Inputs signals are a, b and cin. Output signal y = [cout sum]

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