About the Pascal category

Programming languages Pascal
#1

This subcategory is for Pascal programmers. Don’t be shy, no question is too simple or too complicated.

Please, do not post here if your question is about a puzzle, a contest or anything that relates to the CodinGame platform (there are other categories for that purpose).

#2

hello! i’ll be first to report about pascal!

i have already one improvement about solving puzzles in pascal: use strutils - it helps alot in almost half of puzzles!

#3

i think i have another improvement

how current ParseIn procedure looks like:

uses classes;

procedure ParseIn(Inputs: TStrings) ;
var Line : string;
begin
    readln(Line);
    Inputs.Clear;
    Inputs.Delimiter := ' ';
    Inputs.DelimitedText := Line;
end;

var
    Inputs: TStringList;
    SomeIntValue, NextIntValue: Int32;
begin
    Inputs := TStringList.Create;
    ParseIn(Inputs);
    SomeIntValue := StrToInt(Inputs[0]);
    NextIntValue := StrToInt(Inputs[1]);
    ...
    //and so on

    flush(StdErr); flush(output); // DO NOT REMOVE
end.

IMHO this will be better:

uses strutils;

var
    SomeIntValue, NextIntValue: Int32;
    Line: String;
    function ParseIn(i : Int32) : String;
    begin
       ParseIn := ExtractWord(i, Line, [' ']); 
    end;
begin
    readln(Line);
    SomeIntValue := StrToInt(ParseIn(1));
    NextIntValue := StrToInt(ParseIn(2));
    ...
    //and so on
    
    flush(StdErr); flush(output);
end.
1 Like
#4

guys, help! i need a “clean” button, because i fixed one typo in my solution and see no effects

#5

What packages are supported on CG?
I tried to use AVLTree, but could’nt make it work.

It seems like of all the data structures from this page only RTL part is avaliable.
http://wiki.lazarus.freepascal.org/Data_Structures,_Containers,_Collections
I couldn’t use neither AVL_Tree nor Contnrs units.

#6

I would really like to be able to use contnrs for TQueue and TStack.

also, CG IDE commenting shortcut is using “–” for a comment which is plain wrong.

#7

What Units/Packages are available or supported? And I wouldn’t mind changing the ParseIn method. bvs23bkv33 did a good job on that. No object creation required. It needs less characters and therefore ideal for short code competitions.