Б8103а. Введение в алгоритмы. ДП2 / std.longnums с начала прошло: 1831 д. 02:21 страница обновлена: 07.06.2023 18:39

std.longnums: longnums.dpr

``````{\$APPTYPE CONSOLE}
{\$LONGSTRINGS ON}
uses SysUtils;

var fin,fout,fans : text;
i: integer;
s1,s2 : string;
f1,f2 : boolean;

procedure Ex(s : string; ec: integer; ln: integer = -1);
begin
write(s);
if ln >= 0 then write(' in pos ', ln);
try
close(fin); close(fout); close(fans);
except
end;
halt(ec);
end;

function GNLN(var f : text; var s : string; c : integer) : boolean;
var st : longint;
ch : char;
begin
result := false; st := 0; s := '';
while not eof(f) do begin
ch := #0;
if not (ch in ['0'..'9', ' ', '-', #13, #10]) then begin
if c = 1 then Ex('PE: bad chars in out', 2);
if c = 2 then Ex('IE: bad chars in ans', 3);
end;
case st of
0 : begin
if (ch = '0') then st := 1;
if (ch > '0') and (ch <= '9') or (ch = '-') then st := 2;
end;
1 : begin
if (ch > '0') and (ch <= '9')  or (ch = '-') then st := 2;
if ((ch < '0') or (ch > '9')) and (ch <> '-') then break;
end;
2 : begin
if ((ch < '0') or (ch > '9')) and (ch <> '-') then break;
end;
end;
if st = 2 then if ch in ['0'..'9', '-'] then
begin
s := s + ch;
if (length(s) <> 1) and (s[length(s)] = '-') then
Ex('PE: bad chars in out', 2);
end;
end;
if st = 1 then begin st := 2; s := '0'; end;
if st = 2 then result := true;
end;

begin
try
assign(fin,paramstr(1)); reset(fin);
except on e: Exception do
Ex('Error opening input: ' + e.Message, 3);
end;
try
assign(fans,paramstr(3)); reset(fans);
except on e: Exception do
Ex('Error opening answer: ' + e.Message, 3);
end;
try
assign(fout,paramstr(2)); reset(fout);
except on e: Exception do
Ex('Can''t open output: ' + e.Message, 2);
end;
i := 0;
try
while (true) do begin
inc(i);
f1 := GNLN(fout, s1, 1); f2 := GNLN(fans, s2, 2);
if (not f1) and (not f2) then break;
if f1 and not f2 then Ex('Extra numbers', 2);
if not f1 and f2 then Ex('Too few numbers', 2);
if (s1 <> s2) then Ex('WA', 1, i);
end;
except
Ex('PE', 2, i);
end;
Ex('', 0);
end.

``````
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