Problem 325. 2 b | ~ 2 b

Created by Alan Chalker

Solve Later

Given a string input, output true if there are 2 b's in it, false if otherwise

Examples:

'Macbeth' -> false 'Publius Cornelius Dolabella' -> true

Note: sometimes it's the littlest things that matter....

Solve

Solution Stats

917 Solutions
309 Solvers

Last Solution submitted on Jan 08, 2020

Last 200 Solutions

Problem Comments

8 Comments

8 Comments

Show 5 older comments

AMITAVA BISWAS on 28 Feb 2012

this is a great problem iff delivered as audio but not as video...

AMITAVA BISWAS on 28 Feb 2012

Liked it, emphasizes the old advice - examine the exam first, answer the exam later ...

David Young on 29 Feb 2012

But B is not the same as b!

Richard Zapor on 1 May 2012

The default call routine has numbers "2" but the check routine expects "two" to be the function call name.

Jan Orwat on 4 Aug 2013

I'm just curious, cause the description doesn't specify it clearly (and there is no test for this): what the output should be when input has more than two b's?

Anupam Agarwal on 17 Oct 2014

filename cannot start with a number.

Varoujan on 5 Jul 2015

Tricky problem - fools the solver with the function name...

Michael Jarboe on 6 Sep 2018

FUNCTION NAME STARTS WITH A NUMBER! BLAH! CHANGE 2--> two

Solution Comments

Solution 1591032

1 Comment

1 Comment

A C on 24 Jul 2018

great!

Solution 563855

1 Comment

1 Comment

Chellammai C on 23 Jan 2015

"cannot read input file 2_b_or_not_2_b.m " hence it failed to evaluate

Solution 466738

2 Comments

2 Comments

Nishat Savat on 6 Jul 2014

why it displays cannot read input file.

rifat on 6 Jul 2014

change your file name to two_b_or_not_two_b

Solution 453978

2 Comments

2 Comments

goc3 on 12 Jun 2014

I'm getting the error: cannot read input file 2_b_or_not_2_b.m. I assume that this isn't on my end...

Osama on 17 Jul 2014

me too !

Solution 236056

1 Comment

1 Comment

Nicholas Howe on 26 Apr 2013

Sorry to steal the lead with this lame solution! I was trying different things before realizing the trick, and hadn't changed the solution back.

Solution 222343

2 Comments

2 Comments

li jian on 24 Mar 2013

I can not submit my solution,it always says "failed to evaluate". Who can help me

Alfonso Nieto-Castanon on 24 Mar 2013

need to change the function name to two_b_or_not_two_b

Solution 65933

2 Comments

2 Comments

Tholian on 26 Mar 2012

I think there is a problem with the test or tests, since even the default solution fails to evaluate with 'Parse error' indicated.

Drew Weymouth on 4 Apr 2012

I agree. Function names cannot start with numbers, so this problem should be revised.

Problem Recent Solvers309

Problem Tags

basic matlab strings

Problem 325. 2 b | ~ 2 b

Solution Stats

Last 200 Solutions

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Problem Recent Solvers309

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Problem 325. 2 b | ~ 2 b

Solution Stats

Last 200 Solutions

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Solution Comments

Problem Recent Solvers309

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