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2WA 1AC PASCAL....var
n,i,m,k,l,j,o:integer;
a:array[1..maxint]of integer;
mn:boolean;
begin
read(n);
while n<>0 do
begin
fillchar(a,sizeof(a),0);
mn:=true;
readln(m);
for i:=1 to n do begin read(o);a[o]:=1;end;
for i:=1 to m do
begin
read(k,l);
for j:=1 to k do begin read(o); if a[o]=1 then dec(l) end;
if l>0 then mn:=false;
end;
if mn then writeln('yes') ELSE WRITELN('no');
read(n);
end;
end.
这水题都贡献了2WA,好吧。。。
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