Problem 62. Elapsed Time

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 two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, in decimal hours, separates them. Assume d2 is always later than d1.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Input d1 = '2010/12/14 12:00:00'\n Input d2 = '2010/12/14 13:06:36'\n Output elapsed is 1.11]]></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

5119 Solutions
1886 Solvers

Last Solution submitted on Jun 17, 2021

Last 200 Solutions

Problem Comments

11 Comments

11 Comments

Show 8 older comments

Bobby Cheng on 27 Jan 2012

The testsuite input does not following the input format string.

Chew Baca on 13 Mar 2013

Having a hard time with the test suite regarding the number of hours in one year. I think it should be 8 765.81277h/y

Matthew Kishe on 15 Aug 2013

The test suite doesnt follow. it should be double digit days and month, not single digits according to his descrption

Hassan Javaid on 5 Sep 2013

having problems with the test suite especially test no 3

Gareth Lee on 10 Nov 2014

having problems with test no 3 of the test suite,why?

Riyasat on 5 Feb 2015

It's a fun problem

huashou on 11 Apr 2017

the test suits are all passed , but the mathworks net tells its wrong.
and the size is '-1'.
i use the datenum function.

Chen Qian on 11 Jun 2019

I use format bank to get 2 decimal output, anyone has a better idea?

Sanzhar Askaruly on 6 Jul 2019

using existing functions makes this trick easy

Laza Álmos on 27 Mar 2020

with an existing funcion it is solveable

Bugrahan Atar on 9 Feb 2021

function elapsed= elapsed_time(d1,d2)
d1='2010/12/14 12:00:00'
d2='2010/12/15 13:06:36'
a=(str2num(d2(1:4))-str2num(d1(1:4)))*8760;
b=(str2num(d2(6:7))-str2num(d1(6:7)))*720;
c=(str2num(d2(9:10))-str2num(d1(9:10)))*24;
e=str2num(d2(12:13))-str2num(d1(12:13));
f=(str2num(d2(15:16))-str2num(d1(15:16)))/60;
g=(str2num(d2(18:19))-str2num(d1(18:19)))/3600;
elapsed=a+b+c+e+f+g
end

it told me that solution is wrong?

Solution Comments

Solution 1893405

1 Comment

1 Comment

liu xinyang on 7 Aug 2019

This test program is wrong.To judge a leap year, you need to calculate if the following condition is satisfied mod(year,4)==0 & mod(year,100)~=0 & mod(year,400)==0. However, this team only count those years that mod(year,4)==0

Solution 1202027

1 Comment

1 Comment

Ahmed Abdelbasit on 31 May 2017

why this function returns an error it works perfectly on my pc

Solution 1160067

1 Comment

1 Comment

huashou on 11 Apr 2017

the test suits are all passed , but the mathworks net tells its wrong. and the size is '-1'. i use the datenum function.

Solution 445677

1 Comment

1 Comment

Alison on 24 May 2014

The value of d1 in Test Suite #3 is not to spec (one digit for the month).

Solution 141774

1 Comment

1 Comment

Chew Baca on 13 Mar 2013

Love the little "if" in the end ! :D

Solution 132316

1 Comment

1 Comment

Gwendolyn Fischer on 17 Apr 2013

doesn't work any longer

Problem Recent Solvers1886

Problem Tags

time

Community Treasure Hunt

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

Start Hunting!

Problem 62. Elapsed Time

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1886

Suggested Problems

More from this Author95

Problem Tags

Community Treasure Hunt

Problem 62. Elapsed Time

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1886

Suggested Problems

More from this Author95

Problem Tags

Community Treasure Hunt

Players