Problem 70. Alphabetize by last name

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Given a list of names in a cell array, sort the list by the last name. So if

 list = {'Barney Google','Snuffy Smith','Dagwood Bumstead'};

then the output is

 alpha_list = {'Dagwood Bumstead','Barney Google','Snuffy Smith'}

Solve

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Last Solution submitted on Jun 11, 2025

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Ahmed Nazir on 30 Sep 2020

Be careful with output format...

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

Brent on 16 Mar 2025

The 'Cleve Moler' name has an extra space in the assert list of alpha_names, which was causing a failed solution in Test Case 2. After cludging a solution to match that space, other solutions I tested were apparently not rejected for the same solution I achieved.

Christian Schröder on 17 Mar 2025

@Brent the extra space is be immaterial: it's outside the string. The problem with your earlier non-scoring solutions is the "F." in "John F. Kennedy", which your solutions mistakenly removed

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Problem 70. Alphabetize by last name

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Last 200 Solutions

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Problem 70. Alphabetize by last name

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