I / O

route · Post by **route** » Thu Apr 10, 2003 12:29 pm

How to detect for eoln ?
Are there any pre-definied constants, e.g. Pi in C++ ?

Krzysztof Duleba · Post by **Krzysztof Duleba** » Sat Jul 26, 2003 3:41 am

end-of-line charatcer is '\n'. If you use iostream, you can simply check the following condition:

if(cin.peek()=='\n')...

bugzpodder · Post by **bugzpodder** » Mon Jul 28, 2003 4:53 pm

you can use 4*atan(0) for pi

Dominik Michniewski · Post by **Dominik Michniewski** » Tue Jul 29, 2003 9:35 am

1. if you want to check eoln you should be awere to check two characters: '\r' and '\n' ....
2. standard PI definitions (in many contests and in many problems at this site) is acos(-1.0) or 2.0*acos(0.0)

Best regards
DM

Krzysztof Duleba · Post by **Krzysztof Duleba** » Tue Jul 29, 2003 1:26 pm

The Online Judge runs under Linux, so it has the Unix text file format. In Unix eol is a single '\n' character - line feed characters are Windows feature.