2009-2010 Round 6 Question 1

[PropagandaPanda]

Hello.

I'm not sure why the code below (Python) was judged as wrong. It was my second submission, so it didn't so up in the score sheet.

code:

def ReadFile():     for Line in open("data1.txt").read().split("\n"):         yield Line             Next = ReadFile().next def WriteLine(Line):     open("out1.txt","a").write(str(Line) + "\n") def DoIt(Line):     S = ""     for Chr in Line:         if "A" <= Chr <= "Z":             Ord = ord(Chr) - 65             Ord += 13             Ord %= 26             S += chr(Ord+65)         else:             S += Chr     return S for QQ in xrange(5):     WriteLine(DoIt(Next()))

I'm guessing it was because there were trailing spaces in the test file, but I assumed this may have been allowed because the program was suppose to read the whole line.

Would it be possible for you to attach a copy of the test file used on the judge machine?

Thanks.

[Tony]

It might have had something to do with \r\n newlines on the Windows judge, vs. \n newlines on *nix machines.

The test data is available online via http://dwite.org/home/contest/29, although you wouldn't see the system dependent newlines.

[Dan]

If you give me your team name I can look up in the judges logs about what might have happened.

[PropagandaPanda]

Hello.

Quote:

It might have had something to do with \r\n newlines on the Windows judge, vs. \n newlines on *nix machines.

I don't think this is the issue. Python automatically convers \r\n to \n when reading and vice versa when writing.

The test data provided works fine with my program.

Quote:

If you give me your team name I can look up in the judges logs about what might have happened.

My team name is PropagandaPanda. I would appreciate if you could look into it for me.

Thanks for your time.

[Dan]

For the fist submssion the judge reported the following error:

code:

Traceback (most recent call last): File "answer1.py", line 25, in <module>     A = Next() StopIteration

and the output file contained:

Quote:

QJVGR DHRFGVBA
BAR CHAPGHNGVBA.,
EBG13 <GBAL>

Note that all the line breaks are wrong.


The second submssion had no errors but the output file contained the following:

Quote:

QUESTION ONE
<TONY>
ROT13
PUNCTUATION.,
DWITE

This is the contents of the data1.txt file.

The code you submited for the second submission is diffrent from what you posted here and looks like so:

Python:

def ReadFile():     for Part in open("data1.txt","r").read().split("\n"):         yield Part Next = ReadFile().next def WriteLine(Line):     open("out1.txt","a").write(str(Line) + "\n") def DoIt(Line):     S = ""     for Chr in Line:         if "A" <= Chr <= "Z":             Ord = ord(Chr) - 65             Ord += 13             Ord %= 26             S += chr(Ord+65)         else:             S += Chr     return S for QQ in xrange(5):     WriteLine(Next())

note the last line:

WriteLine(Next())

is diffrent then what you posted and just copies the contents of data1.txt to out1.txt.

[PropagandaPanda]

Hello Dan.

Sorry for wasting your time. The mistake was completely mine.

I had submitted the a bad copy of my code.

Thanks.