Free Pascal Compiler version 2.4.0-2ubuntu1.10.04 [2011/06/17] for i386 Copyright (c) 1993-2009 by Florian Klaempfl Target OS: Linux for i386 Compiling cifru4.pas cifru4.pas(19,35) Warning: Variable "sol" does not seem to be initialized cifru4.pas(4,13) Note: Local variable "k" not used Linking executable /usr/bin/ld: warning: link.res contains output sections; did you forget -T? 24 lines compiled, 0.0 sec 1 warning(s) issued 1 note(s) issued