Problem 57. Summing Digits within Text

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 string with text and digits, add all the numbers together.</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[ Input str = '4 and 20 blackbirds baked in a pie'\n Output total is 24\n\n Input str = '2 4 6 8 who do we appreciate?'\n Output total is 20]]></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

3650 Solutions
1585 Solvers

Last Solution submitted on Dec 09, 2021

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

Jean-Marie Sainthillier on 19 Jul 2012

Very nice !

Dariusz on 3 Feb 2013

This problem shouldn't be named "Summing digits...." because it is the wrong approach. In the first example you sum numbers because 20 is not a digit. If it was - then it should be sum = 6.

Carl Witthoft on 18 Nov 2015

What if there are decimals "I have $3.25 in 4 pockets" ? Should the answer be 7.25 or 32?

Solution Comments

Solution 6602064

Solution 1866232

1 Comment

1 Comment

SJ Won on 5 Jul 2019

I don't understand why this is failing?? Can someone explain? It works in matlab for me

Solution 1029205

1 Comment

1 Comment

Dan Po on 24 Oct 2016

this is hard

Solution 457992

1 Comment

1 Comment

Teemu Pulkkinen on 18 Jun 2014

I'm cheating a bit here (by parsing out the dash and dollar sign)

Solution 214053

1 Comment

1 Comment

Daniel lefebvre on 31 Jan 2014

That's cheating.

Problem Recent Solvers1585

Problem Tags

strings

Community Treasure Hunt

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

Start Hunting!

Problem 57. Summing Digits within Text

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1585

Suggested Problems

More from this Author95

Problem Tags

Community Treasure Hunt

Problem 57. Summing Digits within Text

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1585

Suggested Problems

More from this Author95

Problem Tags

Community Treasure Hunt

Players