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**Content Feed**

Solved

Set some matrix elements to zero

First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

oltre 9 anni ago

Solved

Removing rows from a matrix is easy - but what about inserting rows?

Assume A is a 5-by-5 matrix. A([2,4],:) = [] is a quick way to remove rows 2 and 4. Can you find a quick way to insert rows into...

oltre 9 anni ago

Solved

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...

oltre 9 anni ago

Solved

Make a run-length companion vector

Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

oltre 9 anni ago

Solved

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 ...

oltre 9 anni ago

Solved

Spot the outlier

All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...

oltre 9 anni ago

Solved

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...

oltre 9 anni ago

Solved

String substitution, sub problem to cryptoMath

This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

oltre 9 anni ago

Solved

Find matching string from a list of strings

Write a function that returns a string that is a unique match (if it exists) of the string |inStr| from a list of strings |strLi...

oltre 9 anni ago

Solved

Convert a vector into a number

This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

oltre 9 anni ago

Solved

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...

oltre 9 anni ago

Solved

Retirement savings

At the start of what year will you have reached or exceeded a savings goal? Parameters (all are constant scalars given in a s...

oltre 9 anni ago

Solved

Decode a simplified barcode

Given a bar code from this <http://www.mathworks.com/matlabcentral/cody/problems/602-make-a-simplified-bar-code exercise>: Re...

oltre 9 anni ago

Solved

Make a simplified barcode

Given an integer to encode, make a barcode using the following encoding scheme: * The bar code is made from the binary versio...

oltre 9 anni ago

Solved

Kaprekar numbers

Test if the input is a Kaprekar number: <http://mathworld.wolfram.com/KaprekarNumber.html>. Return a logical true or false. ...

oltre 9 anni ago

Solved

Kaprekar Steps

6174 is the <http://en.wikipedia.org/wiki/6174_%28number%29 Kaprekar constant>. All natural numbers less than 10,000 (except som...

oltre 9 anni ago

Solved

Knight's Tour Checker

Given a matrix a, determine whether or not a legal <http://en.wikipedia.org/wiki/Knight's_tour knight's tour> is present. The kn...

circa 10 anni ago

Solved

How to find the position of an element in a vector without using the find function

Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

circa 10 anni ago

Solved

Find best placement for ordered dominoes (harder)

Given a list of ordered pairs, find the order they should be placed in a line, such that the sum of the absolute values of the d...

circa 10 anni ago

Solved

Find perfect placement of non-rotating dominoes (easier)

Given a list of ordered pairs, find the order they should be placed in a line, such that the sum of the absolute values of the d...

circa 10 anni ago

Solved

Rotate and display numbered tile

Imagine a square tile with four numbers on it, one on each edge. We will call these edges north, east, south, and west. If th...

circa 10 anni ago

Solved

Stuff the Board

You have a stack of tiles to put onto an array-like playing board. Each tile has a number (always an integer), and the board var...

circa 10 anni ago

Solved

Scoring for oriented dominoes

Given a list of ordered pairs, and the order they should be placed in a line, find the sum of the absolute values of the differe...

circa 10 anni ago

Solved

Poker Series 11: selectBestHand

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

circa 10 anni ago

Solved

Poker Series 10: bestHand

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

circa 10 anni ago

Solved

Poker Series 09: IsHighCard

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

circa 10 anni ago

Solved

Poker Series 08: IsPair

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

circa 10 anni ago

Solved

Poker Series 07: IsTwoPair

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

circa 10 anni ago

Solved

Poker Series 06: isThreeKind

The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

circa 10 anni ago