# Joel Hottinger

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Solved

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 ...

8 månader ago

Solved

Sum of first n terms of a harmonic progression

Given inputs a, d and n, return the sum of the first n terms of the harmonic progression a, a/(1+d), a/(1+2d), a/(1+3d),....

8 månader ago

Solved

Is A the inverse of B?

Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...

8 månader ago

Solved

Rotate Matrix @180 degree

Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

8 månader ago

Solved

Square root

Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

8 månader ago

Solved

Calculate the average value of the elements in the array

Calculate the average value of the elements in the array

8 månader ago

Solved

the average value of the elements

Calculate the average value of the elements in the array

8 månader ago

Solved

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...

9 månader ago

Solved

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...

9 månader ago

Solved

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, ...

9 månader ago

Solved

Calculate the Levenshtein distance between two strings

This problem description is lifted from http://en.wikipedia.org/wiki/Levenshtein_distance. The Levenshtein distance between two...

9 månader ago

Solved

It dseon't mettar waht oedrr the lrettes in a wrod are.

An internet meme from 2003 (read more here) asserted that readers are relatively insensitive to letter order in words, so long a...

9 månader ago

Solved

Find relatively common elements in matrix rows

You want to find all elements that exist in greater than 50% of the rows in the matrix. For example, given A = 1 2 3 5 ...

9 månader ago

Solved

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...

9 månader ago

Solved

Monte-Carlo integration

Write a function that estimates a d-dimensional integral to at least 1% relative precision. Inputs: * d: positive integer....

10 månader ago

Solved

The Birthday Phenomenon

First off, leap years are not being considered for this. In fact the year that people are born shouldn't be taken into considera...

10 månader ago

Solved

Throwing Dice - Will You Be Eaten By The Dragon?

You and a dragon have agreed to let dice rolls determine whether it eats you or not. The dragon will roll a single die, of x ...

10 månader ago

Solved

Chess probability

The difference in the ratings between two players serves as a predictor of the outcome of a match (the <http://en.wikipedia.org/...

10 månader ago

Solved

Divisors for big integer

Inspired by Problem 1025 and Project Euler 12. Given n, return the number y of integers that divide N. For example, with ...

10 månader ago

Solved

Highly divisible triangular number (inspired by Project Euler 12)

Triangular numbers can be calculated by the sum from 1 to n. For example, the first 10 triangular numbers are: 1, 3, 6, 10, ...

10 månader ago

Solved

Project Euler: Problem 11, Largest product in a grid

What is the greatest product of _k_ adjacent numbers in the same direction (up, down, left, right, or diagonally) in a _n×n_ gri...

10 månader ago

Solved

Sum of big primes without primes

Inspired by Project Euler n°10 (I am quite obviously a fan). With problem n°250 by Doug, you can find some global methods to ...

10 månader ago

Solved

Sums of cubes and squares of sums

Given the positive integers 1:n, can you: 1. Compute twice the sum of the cubes of those numbers. 2. Subtract the square...

10 månader ago