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Aktiv seit 2012

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Problem

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...

etwa 12 Jahre vor | 29 | 2156 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 24 | 1300 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 21 | 1393 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 30 | 4375 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 7 | 1169 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 8 | 1028 Lösungsvorschläge

Problem

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, ...

etwa 12 Jahre vor | 23 | 1198 Lösungsvorschläge

Problem

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

etwa 12 Jahre vor | 25 | 1335 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 12 | 1453 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 22 | 1671 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 10 | 2353 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 11 | 1450 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 5 | 1592 Lösungsvorschläge

Problem

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. ...

etwa 12 Jahre vor | 7 | 1226 Lösungsvorschläge

Problem

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

etwa 12 Jahre vor | 23 | 2172 Lösungsvorschläge

Problem

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 ...

etwa 12 Jahre vor | 9 | 1415 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 7 | 1282 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 12 | 1581 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 5 | 1635 Lösungsvorschläge

Problem

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 =...

etwa 12 Jahre vor | 14 | 2899 Lösungsvorschläge

Problem

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

etwa 12 Jahre vor | 9 | 1198 Lösungsvorschläge

Problem

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

etwa 12 Jahre vor | 15 | 1623 Lösungsvorschläge

Problem

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

etwa 12 Jahre vor | 9 | 1489 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 21 | 2880 Lösungsvorschläge

Problem

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 ...

etwa 12 Jahre vor | 18 | 2898 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 38 | 3327 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 23 | 2203 Lösungsvorschläge

Problem

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 ...

etwa 12 Jahre vor | 17 | 2163 Lösungsvorschläge

Problem

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...

etwa 12 Jahre vor | 23 | 2369 Lösungsvorschläge

Problem

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

etwa 12 Jahre vor | 27 | 2185 Lösungsvorschläge

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