112题。消除气泡

Created byNed Gulley

Like (15)

Solve Later

{“关系”:[{“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 matrix a, return a matrix b in which all the zeros have \"bubbled\" to the top. That is, any zeros in a given column should be moved to the top. The order of the remaining nonzero numbers in the column should be preserved.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Example 1</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Input a = [ 1 2 3\n 0 4 5\n 6 0 0 ]\n\n Output b is [ 0 0 0\n 1 2 3\n 6 4 5 ]]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Example 2</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Input a = [ 1 0 5 0 6 0 7 ]'\n Output b is [ 0 0 0 1 5 6 7 ]']]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Example 3</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Input a = [ 1 0\n 1 1 ]\n Output b is [ 1 0 \n 1 1 ]]]></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

4158 Solutions
920 Solvers

LastSolution提交on Jun 08, 2022

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

Show 1 older comment

Chien-Han Suon 2 Nov 2020

love this one

Jakeb Chouinardon 20 Nov 2020

28 attempts later, we finally made it

Ngo Tien Sangon 8 Jul 2021

nice question!

Nguyen Viet Dungon 11 Aug 2021

good problem

Solution Comments

Solution 909152

1 Comment

1 Comment

Atsushi Uenoon 15 Jun 2016

zeros are added to convert a logical to double.

Solution 104277

1 Comment

1 Comment

Jean-Marie Sainthillieron 4 Sep 2013

The first time I see this kind of bsxfun.

Solution 23069

2 Comments

2 Comments

Mike Keenanon 1 Feb 2012

Looks like I have the lamest possible solution!

yurenchuon 30 Apr 2017

I think it would be funny to see this solution in action by an animation of iterations! :-)

Solution 10280

1 Comment

1 Comment

Alfonso Nieto-Castanonon 28 Jan 2012

this breaks with nan's, solution 6118 does not

Solution 7176

2 Comments

2 Comments

Thomason 26 Jan 2012

There is a bug in this Problem

function b = bubbles(a)
b = [];
end
Passes the test.
One needs to check: b_correct ~= [].

Thomason 26 Jan 2012

To the sort User :
[-1 0]' would come out [ -1 0] '

Solution 6689

1 Comment

1 Comment

Alfonso Nieto-Castanonon 26 Jan 2012

need to fix the test suite to include non-sorted non-zero elements

Solution 6496

1 Comment

1 Comment

Alfonso Nieto-Castanonon 28 Jan 2012

wishful thinking: perhaps sort 'should' behave like relational operators...

Problem Recent Solvers920

Problem Tags

Community Treasure Hunt

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

Start Hunting!

112题。消除气泡

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers920

Suggested Problems

More from this Author50

Problem Tags

Community Treasure Hunt

112题。消除气泡

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers920

Suggested Problems

More from this Author50

Problem Tags

Community Treasure Hunt

Players