Problem 29. Nearest Numbers

Created by Cody Team

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Given a row vector of numbers, find the indices of the two nearest numbers.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Examples:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ [index1 index2] = nearestNumbers([2 5 3 10 0 -3.1])\n\n index1 =\n      1\n index2 =\n      3\n\n [index1 index2] = nearestNumbers([-40 14 22 17])\n\n index1 =\n      2\n index2 =\n      4]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Notes</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"2\"/></w:numPr></w:pPr><w:r><w:t>The indices should be returned in order such that index2 &gt; index1.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"ListParagraph\"/><w:numPr><w:numId w:val=\"2\"/></w:numPr></w:pPr><w:r><w:t>There will always be a unique solution.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

11456 Solutions
3623 Solvers

Last Solution submitted on Jan 25, 2022

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

Jon on 4 Dec 2013

Best score without using Neural Net Toolbox is 38

Droopy Cee on 13 Mar 2017

123 lol.

Jiahang Li on 2 Feb 2018

It took me half an hour to solve test 4.

Solution Comments

Solution 2763532

1 Comment

1 Comment

Joie Barni on 31 Jul 2020

Huh, using indices within each other actually worked.

Solution 1707694

2 Comments

2 Comments

Burak Bayram on 16 Jan 2019

Worlds longest solution winner please, cody!

Bryan Lambo on 17 Jan 2020

Wow this is long haha. Congrats!

Solution 1455503

1 Comment

1 Comment

Alan Correa on 4 Mar 2018

This Solution works perfectly on MATLAB. Why not here? Need help

Solution 1305446

1 Comment

1 Comment

rao marco on 20 Oct 2017

my solution passes all the tests in matlab R2011a

Solution 1243270

1 Comment

1 Comment

DHARMASETYA dharmasetya on 31 Jul 2017

function [index1, index2] = nearestNumbers(A)

s=[1,1,Inf];
for i = 1:length(A)-1
for j= 1:length(A)-i
s1=[i,i+j,abs(A(i)-A(i+j))];
if s1(3)

Solution 1231263

1 Comment

1 Comment

Eric Miller on 14 Jul 2017

This passed all of the test cases when using MATLAB on my computer, yet it fails here. Anyone know what's wrong with it? I'd appreciate it!

Solution 1224131

1 Comment

1 Comment

Salvatore Lacava on 3 Jul 2017

Hard, but doable!

Solution 717044

1 Comment

1 Comment

Nicholas Hortance on 18 Aug 2015

I really liked this problem and although I provided a lot of code to solve it I am pleased with the thought process that took me to it.

Solution 703045

1 Comment

1 Comment

Raviteja on 19 Jul 2015

This solution is working on my computer.
I don't understand why it is not working

Solution 679051

1 Comment

1 Comment

Ingrid on 2 Jun 2015

why is this not working? gives correct solution to all test cases on my computer

Solution 177241

1 Comment

1 Comment

Baalzamon on 14 Dec 2012

Another unreadable statement. Does anyone else have trouble using backspace in the "comment on solution box"?

Solution 112017

3 Comments

3 Comments

Peter on 21 Mar 2013

This only works if you have the Neural Network Toolbox

Khaled Hamed on 22 Mar 2013

Until they are banned like other functions, many people are using these. It is interesting that only a subset of functions work.

Alfonso Nieto-Castanon on 22 Mar 2013

I am partial to dist, it's such a useful function...

Solution 80168

1 Comment

1 Comment

Dyuman Joshi on 27 Dec 2020

Is dist() still available on Cody?
I thought it required one of multiple toolboxes

Problem Recent Solvers3623

Problem Tags

distance vectors

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 29. Nearest Numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers3623

Suggested Problems

More from this Author95

Problem Tags

Community Treasure Hunt

Problem 29. Nearest Numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers3623

Suggested Problems

More from this Author95

Problem Tags

Community Treasure Hunt

Players