?? ac1196.pas
字號(hào):
program ural1196;
const
maxn=15000;
var
year:array[1..maxn]of longint;
n:integer;
m,i,x,c:longint;
procedure search(x:longint);
var
l,r,p:integer;
begin
l:=1;r:=n;
repeat
m:=(l+r) div 2;
if year[m]=x then begin
inc(c);
exit;
end
else if year[m]>x then
r:=m-1
else
l:=m+1
until l>r;
end;
begin
readln(n);
for i:=1 to n do
readln(year[i]);
readln(m);
c:=0;
for i:=1 to m do begin
readln(x);
search(x);
end;
writeln(c);
end.
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