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MathWorks

2012년부터 활동

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문제

Project Euler: Problem 2, Sum of even Fibonacci
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 te...

대략 12년 전 | 29 | 솔버 수: 2159

문제

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...

12년 초과 전 | 24 | 솔버 수: 1314

문제

Given two strings, find the maximum overlap
Given two strings s1 and s2, create a new string s3 which is as short as possible and contains both strings. If s1 = [1 2...

12년 초과 전 | 21 | 솔버 수: 1406

문제

Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

12년 초과 전 | 30 | 솔버 수: 4390

문제

Find state names that start with the letter N
Given a list of US states, remove all the states that start with the letter N. If s1 = 'Alabama Montana Nebraska Vermont Ne...

12년 초과 전 | 7 | 솔버 수: 1173

문제

Get the area codes from a list of phone numbers
Given a string of text with phone numbers in it, return a unique'd cell array of strings that are the area codes. s = '508-647...

12년 초과 전 | 8 | 솔버 수: 1032

문제

Connect Four Win Checker
<http://en.wikipedia.org/wiki/Connect_Four Connect Four> is a game where you try to get four pieces in a row. For this problem, ...

12년 초과 전 | 23 | 솔버 수: 1211

문제

Calculate the Levenshtein distance between two strings
This problem description is lifted from <http://en.wikipedia.org/wiki/Levenshtein_distance>. The Levenshtein distance betwee...

12년 초과 전 | 25 | 솔버 수: 1351

문제

Counting in Finnish
Sort a vector of single digit whole numbers alphabetically by their name, in Finnish. See the Wikipedia page for <http://en.wik...

12년 초과 전 | 12 | 솔버 수: 1464

문제

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...

12년 초과 전 | 22 | 솔버 수: 1683

문제

Indexed Probability Table
This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...

12년 초과 전 | 10 | 솔버 수: 2367

문제

Renaming a field in a structure array
MATLAB has a <http://www.mathworks.com/help/techdoc/ref/setfield.html setfield> and a <http://www.mathworks.com/help/techdoc/ref...

12년 초과 전 | 11 | 솔버 수: 1461

문제

Remove the polynomials that have positive real elements of their roots.
The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the <http://www.ma...

12년 초과 전 | 5 | 솔버 수: 1604

문제

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. ...

12년 초과 전 | 7 | 솔버 수: 1241

문제

Prime factor digits
Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...

12년 초과 전 | 24 | 솔버 수: 2186

문제

Remove the small words from a list of words.
Your job is to tidy up a list of words that appear in a string. The words are separated by one or more spaces. Remove all words ...

12년 초과 전 | 9 | 솔버 수: 1428

문제

DNA N-Gram Distribution
Given a string s and a number n, find the most frequently occurring n-gram in the string, where the n-grams can begin at any poi...

12년 초과 전 | 7 | 솔버 수: 1296

문제

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...

12년 초과 전 | 12 | 솔버 수: 1594

문제

Clean the List of Names
Given a list of names in a cell array, remove any duplications that result from different capitalizations of the same string. So...

12년 초과 전 | 5 | 솔버 수: 1647

문제

De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

12년 초과 전 | 14 | 솔버 수: 2915

문제

Test for balanced parentheses
Given the input inStr, give the boolean output out indicating whether all the parentheses are balanced. Examples: * If ...

12년 초과 전 | 9 | 솔버 수: 1203

문제

Mandelbrot Numbers
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

12년 초과 전 | 15 | 솔버 수: 1637

문제

Find the palindrome
Given the string a, find the longest palindromic sub-string b. So when a = 'xkayakyy'; you should return b = 'kayak';

12년 초과 전 | 9 | 솔버 수: 1500

문제

Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

12년 초과 전 | 21 | 솔버 수: 2892

문제

Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

12년 초과 전 | 18 | 솔버 수: 2910

문제

Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

12년 초과 전 | 38 | 솔버 수: 3333

문제

Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

12년 초과 전 | 23 | 솔버 수: 2217

문제

Alphabetize by last name
Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

12년 초과 전 | 17 | 솔버 수: 2175

문제

Find the peak 3n+1 sequence value
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

12년 초과 전 | 23 | 솔버 수: 2383

문제

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

12년 초과 전 | 27 | 솔버 수: 2198