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Discussion of Problem 1128. Partition into Groups

Help
Posted by lql1993 29 Nov 2008 10:23
why I got wa in test 3?
var f,num:array[1..10000]of longint;
    a:array[1..10000,1..3]of longint;
    w,i,n,j:longint;
procedure print(a:longint);
  var i,w:longint;
      b:array[1..10000]of longint;
 begin
  w:=0;
  fillchar(b,sizeof(b),0);
  for i:=1 to n do
   if f[i]=a then
    begin
     inc(w);
     b[w]:=i;
    end;
  writeln(w);
  if w<>0 then
  begin
  for i:=1 to w-1 do
   write(b[i],' ');
  writeln(b[w]);
  end;
 end;
begin
 assign(input,'a.in');
 reset(input);
 assign(output,'a.out');
 rewrite(output);
 readln(n);
 for i:=1 to n do
  begin
   read(num[i]);
   for j:=1 to num[i] do
    read(a[i,j]);
  end;
 fillchar(f,sizeof(f),0);
 for i:=1 to n do
  if f[i]=0 then
  begin
   w:=0;
   for j:=1 to num[i] do
    if f[a[i,j]]=0 then
     inc(w);
   if w>1 then f[i]:=1;
  end;
 for i:=1 to n do
  begin
   w:=0;
   for j:=1 to num[i] do
    if f[i]=f[a[i,j]] then
     inc(w);
   if w>1 then
    begin
     writeln('NO SOLUTION');
     close(input);
     close(output);
     halt;
    end;
  end;
 w:=0;
 for i:=1 to n do
  w:=w+f[i];
 if w>n/2 then print(0)
  else if w<n/2 then print(1)
   else
    print(f[1]);
 close(input);
 close(output);
end.

Edited by author 08.12.2008 17:26