There is no response after the launch, but just an empty window, as if I didn't write writeln, but just launched begin and end.

Question

I wrote the code on the computer and ran it there
The file is located in the same place as the project so it's not about the file and the file is definitely the right one

And here is the code :

begin
var (min, maxinstr):=(9999999999,0);
var s,maxc:string;
var f:text;
assign(f,'24 (1).txt');
reset(f);
while not eof(f) do begin
readln(f,s);
if s.CountOf('G') < min then begin
min:=s.CountOf('G');
for var abc := 'Z' to 'A' do begin
if maxinstr < s.CountOf(abc) then begin
maxc:=abc;
end;
end;
end;
end;
writeln(maxc);
close(f);
end.

Answer 1

This will help you:

https://wiki.freepascal.org/File_Handling_In_Pascal