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After I figured out that comments starts with "--", not with "-" (that's what the html says), the problem made some sense. But is there anything special about them?

I says "no part of any comment is a token". That could mean two things:
a) if you find a "--", ignore the rest of the line
b) if you find a "--" with no valid token in the rest of the line, THEN it is a comment

I though it was the first one, but I got WA. The second one doesn't exactly make sense, but who knows?

Can anyone help me with it?

if you find a -- ignore the rest of the line.

I get PE on 309, I think the reason is, for the sample input:

A123 A123 )
01.2 A B
C

sample output:
A123 A123
)
01
TOKEN ERROR

I don't understand why I need to put "A123 A123" in one line.
My program outputs this:
A123
A123
)
01
TOKEN ERROR

Could anyone kindly tell what I missed in the problem?
Thanks!

My program also outputs the two A123 on separate lines, but gets Accepted without P.E. So there must be something else.
One thing: I only write empty lines if they appear in the input, not after every block as in the problem statement. In fact I process the input line by line, not block by block and just echo empty lines...

Thanks for the hint, I get accepted.
I think the problem specifiaction need to be changed, I will mail the admin for that.

This is a simple problem and thats why I am wondering why I am getting a WA

here is how I work on it

while ( NOT EOF )
read a complete block and save it in a vector
for each line in the block
process the line till the end of it or till U find a token error- if token error ignore the rest of the block -


I have found the input file and output file on the region website and my output matches the output file so any tricky output that can give me the WA ??!!

I doubt if there exist some characters that have not been mentioned in the description , such as '!' , '?' ,etc.
However I have checked these characters , I still get wa...
I wonder "abc.a" or "abc.1" is legal. I think they are illegal , because it is said that "Identifiers are composed of letters, digits and underscores. "

Now I am hopefully want to get the offical input data and output data , please help me!
I have searched the data on the centeral europe regional offical website , but it doesn't afford the data of the contest in 1996 .
Anyone who has the data , please email me or reply the post . Thank you !!!
china.eli@gmail.com ( my email )