Problem 57. Summing Digits within Text

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Given a string with text and digits, add all the numbers together.

Examples:

 Input str = '4 and 20 blackbirds baked in a pie'
 Output total is 24

 Input str = '2 4 6 8 who do we appreciate?'
 Output total is 20

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Last Solution submitted on Jan 28, 2026

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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?

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