OJ Board

Posted: **Sat Feb 01, 2003 8:46 pm**

How to use 64 bit integer in pascal?

Posted: **Sun Feb 02, 2003 8:18 pm**

The Judge's Pascal compiler (Free Pascal) has 64-bit signed integer type called Int64

Posted: **Tue Feb 04, 2003 10:34 pm**

Or QWord for the unsigned type. Here's the complete list:

           signed     unsigned

8  bit     ShortInt   Byte
16 bit     SmallInt   Word
32 bit     LongInt    Cardinal
64 bit     Int64      QWord

The judge uses the -Sd compiler option, so the default 16 bit signed integer type 'Integer' is redefined to be equivalent to the 32 bit signed integer type 'LongInt'. To have the judge's compiler settings at home, either compile with this option, or include the line[pascal]{$MODE DELPHI}[/pascal] at the top of your code. I always use the last method.
For the unsigned 32 bit type you can also use 'DWord' or 'LongWord'.