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- program project1;
- var
- plik1:textfile;
- linia:string;
- function ile(var ln:string):boolean;
- var
- i,in:integer;
- begin
- ilen:=0;
- for i:=1 to length(ln) do
- begin
- if (ln[i]='(') then
- ilen:=ilen+1;
- if (ln[i]=')') then
- ilen:=ilen-1;
- end;
- if ilen=0 then
- result:=TRUE;
- if ilen<0 then
- result:=FALSE;
- if ilen<>0 then
- result:=FALSE;
- end;
- begin
- Assignfile(plik1, 'F:\pascal\we4.txt');
- Reset(plik1);
- while not EOF(plik1) do
- begin
- readln(plik1,linia);
- writeln(ile(linia));
- end;
- closefile(plik1);
- readln;
- end.
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