## 11309 - Counting Chaos

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winterflower
New poster
Posts: 4
Joined: Mon Mar 06, 2006 7:11 am
Location: China

### 11309 - Counting Chaos

Any tricky test case for this problem?

Hello world!

New poster
Posts: 31
Joined: Sun Feb 25, 2007 6:33 pm
Location: Tehran
Try this:

input:

Code: Select all

``````5
23:59
01:20
01:09
00:08
00:22
``````
output:

Code: Select all

``````00:00
01:21
01:11
00:09
00:33
``````

Robert Gerbicz
Experienced poster
Posts: 196
Joined: Wed May 02, 2007 10:12 pm
Location: Hungary, Pest county, Halasztelek
Contact:

### Re: 11309-Counting Chaos

winterflower wrote:Any tricky test case for this problem?

Try this:

Code: Select all

``````1
23:59``````
the correct output is

Code: Select all

``00:00``
Ps. Why there is no CXIII thread?!

winterflower
New poster
Posts: 4
Joined: Mon Mar 06, 2006 7:11 am
Location: China
AC now , thanks for your help.
Hello world!

srrajesh
New poster
Posts: 23
Joined: Sun Sep 30, 2007 9:02 pm
output:

Code: Select all

``````00:00
01:21
01:11
00:09
00:33
``````
How is that possible?
Are 01:21 01:11 palindromes as per the problem?
Can anyone tell me how they are palindromes as per the problem statement?
I got WA even after a lot of submissions.

What will be the output if the input is:

Code: Select all

``````2
02:00
01:59
``````

New poster
Posts: 31
Joined: Sun Feb 25, 2007 6:33 pm
Location: Tehran
When determining if HH:MM is palindromic, ignore all leading zeroes in HH. If HH is zero then ignore all leading zeroes in MM.
according to the statement for determining if 01:21 is palindromic, we must ignore all leading zeroes in 01 so we have 1:21. it's obvious that 121 is palindromic. The same argument apply for 01:11.

The output for your testcases are

Code: Select all

``````02:02
02:02
``````

srrajesh
New poster
Posts: 23
Joined: Sun Sep 30, 2007 9:02 pm
When determining if HH:MM is palindromic, ignore all leading zeroes in HH. If HH is zero then ignore all leading zeroes in MM.
according to the statement for determining if 01:21 is palindromic, we must ignore all leading zeroes in 01 so we have 1:21. it's obvious that 121 is palindromic. The same argument apply for 01:11.
Thanks, I understood it only now!

Even when I modified my code, to take care of that, I am still getting WA. Here is the code:

Code: Select all

``````Removed after getting the bug fixed up.
``````
I wonder whats wrong here!
Last edited by srrajesh on Mon Oct 08, 2007 5:47 pm, edited 1 time in total.

Robert Gerbicz
Experienced poster
Posts: 196
Joined: Wed May 02, 2007 10:12 pm
Location: Hungary, Pest county, Halasztelek
Contact:
srrajesh wrote:I am still getting WA

srrajesh
New poster
Posts: 23
Joined: Sun Sep 30, 2007 9:02 pm
Robert Gerbicz wrote:
srrajesh wrote:I am still getting WA
No, it works:
Did u specify the number of inputs first?

Code: Select all

``````1
01:20
``````

Robert Gerbicz
Experienced poster
Posts: 196
Joined: Wed May 02, 2007 10:12 pm
Location: Hungary, Pest county, Halasztelek
Contact:
srrajesh wrote: No, it works:
Did u specify the number of inputs first?
Yes. Your program gives on my machine 02:22 as output but the correct output is 01:21 for 01:20.

srrajesh
New poster
Posts: 23
Joined: Sun Sep 30, 2007 9:02 pm
Robert Gerbicz wrote:
srrajesh wrote: No, it works:
Did u specify the number of inputs first?
Yes. Your program gives on my machine 02:22 as output but the correct output is 01:21 for 01:20.
Hmm, ok I don't know. But in my PC I am getting correct output.
Here is the list of all possible cases with which I tested my code:

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``````1439
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``````
The output I got is:

Code: Select all

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``````
I checked the o/p I got with my friend's AC code with the "cmp" command.
There wasn't any difference.
Plz check my o/p with ur AC code.

sapnil
Experienced poster
Posts: 106
Joined: Thu Apr 26, 2007 2:40 pm
Location: CSE-SUST
Contact:
To srrajesh

For your input my acc code return:

Code: Select all

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``````
Thanks Keep posting
Sapnil

srrajesh
New poster
Posts: 23
Joined: Sun Sep 30, 2007 9:02 pm
sapnil wrote:To srrajesh

For your input my acc code return:
.............
Thanks Keep posting
Sapnil
That is precisely what my code too has generated as output.

I think u put an extra space at the end of the last output case while pasting the output.
I think that it is accidental.
I guess the output does not require last output to end with a whitespace followed by a new line.
Or does it?

New poster
Posts: 31
Joined: Sun Feb 25, 2007 6:33 pm
Location: Tehran
srrajesh wrote:
When determining if HH:MM is palindromic, ignore all leading zeroes in HH. If HH is zero then ignore all leading zeroes in MM.
according to the statement for determining if 01:21 is palindromic, we must ignore all leading zeroes in 01 so we have 1:21. it's obvious that 121 is palindromic. The same argument apply for 01:11.
Thanks, I understood it only now!

Even when I modified my code, to take care of that, I am still getting WA. Here is the code:

Code: Select all

``````
Deleted
``````
I wonder whats wrong here!