Problem 70. Alphabetize by last name

Created by Cody Team

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{"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 list of names in a cell array, sort the list by the last name. So if</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ list = {'Barney Google','Snuffy Smith','Dagwood Bumstead'};]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>then the output is</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ alpha_list = {'Dagwood Bumstead','Barney Google','Snuffy Smith'}]]></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

4805 Solutions
1497 Solvers

Last Solution submitted on Jan 22, 2022

Last 200 Solutions

Problem Comments

6 Comments

6 Comments

Show 3 older comments

Swapnali Gujar on 11 Mar 2014

looks like there is problem with the 2nd test case result. The 'Cleve Molar' is shifted by 1 space in the ans

Wei-Rong Chen on 7 Apr 2015

This problem can be trickier if the input can allow different styles of name representation, e.g., 'FirstName LastName' and 'LastName, FirstName'.

Sanzhar Askaruly on 7 Jul 2019

be careful with 'John F. Kennedy' case..

Banister on 28 Jul 2019

The change in output format was a pain !

Bryan Lambo on 20 Dec 2019

This blew my mind. Finally got it.

Ahmed Nazir on 30 Sep 2020

Be careful with output format...

if length(alpha_list) > 5
alpha_list = alpha_list';
end

Solution Comments

Solution 6552614

Solution 1867183

1 Comment

1 Comment

Sanzhar Askaruly on 7 Jul 2019

Just don't get it. In the first test case, answer is 1xN and in the second Nx1, so I just put workaround. If anyone could explain to me why this matters...

Solution 1714847

1 Comment

1 Comment

Luna on 24 Jan 2019

Size 42. How it calculates the size?

Solution 1648217

2 Comments

2 Comments

SJ Won on 3 Jul 2019

Could you explain this code please?

James on 3 Jul 2019

It's a cheat, generally used by people who can't figure out how to solve a problem with a real answer.

Solution 1620651

2 Comments

2 Comments

A C on 2 Sep 2018

What is wrong with test 2? It looks the same as my output.

CHUANQIANG ZHANG on 29 Apr 2019

I initially also found that strange. But later I found out the cell structure is different. N by 1 OR 1 by N problem.

Solution 1617496

1 Comment

1 Comment

Mso on 27 Aug 2018

You cheater

Solution 1605344

1 Comment

1 Comment

Bhaskar R on 10 Aug 2018

Task is done but Test suite is not dynamic

Solution 1024195

1 Comment

1 Comment

auto2060 on 20 Oct 2016

My crazy answer....

Solution 611264

2 Comments

2 Comments

Serhii Tetora on 21 Jan 2019

How?

bin liu on 21 May 2020

???

Solution 548573

2 Comments

2 Comments

MDK on 20 Dec 2014

Is there a bug in the Test Suite ? I made a code that resulted in the exact ideal answer but the Test has failed!?

Adam Becker on 19 May 2019

I experienced the same thing...was able to generate the output exactly but received a failing score. Did you solve your issue?

Solution 24388

3 Comments

3 Comments

Jan on 2 Feb 2012

http://www.kalzumeus.com/2010/06/17/falsehoods-programmers-believe-about-names/

David Verrelli on 10 Mar 2018

Some alternative situations are presented in Problem 44538
( www.mathworks.com/matlabcentral/cody/problems/44538 ) and Problem 44541 ( https://www.mathworks.com/matlabcentral/cody/problems/44541 ).

CHUANQIANG ZHANG on 29 Apr 2019

Simillar solutions are really cool and concise.

Problem Recent Solvers1497

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Problem 70. Alphabetize by last name

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Problem 70. Alphabetize by last name

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Last 200 Solutions

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Solution Comments

Problem Recent Solvers1497

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