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program gr10(input,output);
var i,n,p : integer;
    a : array [1..100000] of integer;
 
begin
p := 0;
readln(n);
 for i := 1 to n do read(a[i]);
 readln;
 for i := 2 to n do
   if a[i - 1]>0 and a[i]<0 then 
     begin
       t := a[i - 1];
       a[i - 1] := a[i];
       a[i] := t;
       p := p + 1;
     end;
   writeln(p,a[1],a[n])
end.   

Free Pascal Compiler version 2.2.0 [2009/11/16] for i386
Copyright (c) 1993-2007 by Florian Klaempfl
Target OS: Linux for i386
Compiling prog.pas
prog.pas(11,15) Error: Incompatible types: got "Boolean" expected "LongInt"
prog.pas(13,10) Error: Identifier not found "t"
prog.pas(15,17) Error: Identifier not found "t"
prog.pas(19,7) Fatal: There were 3 errors compiling module, stopping
Fatal: Compilation aborted
Error: /usr/bin/ppc386 returned an error exitcode (normal if you did not specify a source file to be compiled)

Standard output is empty