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Problem370B.java
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package CodeForces;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.StringTokenizer;
public class Problem370B
{
public static void main(String[] args) throws IOException
{
fastinput.init(System.in);
int n = fastinput.nextInt();
ArrayList<HashSet<Integer>> hashes = new ArrayList<HashSet<Integer>>(n);
for (int i = 0; i < n; i++)
{
int m = fastinput.nextInt();
HashSet<Integer> hbingo = new HashSet<Integer>(m);
int b;
for (int j = 0; j < m; j++)
{
b = fastinput.nextInt();
hbingo.add(b);
}
hashes.add(hbingo);
}
for (int q = 0; q < n; q++)
{
boolean output = true;
HashSet<Integer> first = hashes.get(q);
for (int w = 0; w < n; w++)
{
output = true;
if (q != w)
{
HashSet<Integer> second = hashes.get(w);
if (second.size() < first.size())
{
int actualmatch = 0;
for (Integer s : first)
{
if (second.contains(s))
{
actualmatch++;
}
}
if (second.size() == actualmatch)
{
output = false;
break;
}
}
if (second.size() == first.size() && second.equals(first))
{
output = false;
break;
}
}
if (output == false)
{
break;
}
}
if (output)
{
System.out.println("YES");
}
else
{
System.out.println("NO");
}
}
}
public static class fastinput
{
static BufferedReader bf;
static StringTokenizer st;
static void init(InputStream input)
{
bf = new BufferedReader(new InputStreamReader(input));
st = new StringTokenizer("");
}
static String nextline() throws IOException
{
return bf.readLine();
}
static String next() throws IOException
{
while (!st.hasMoreTokens())
{
st = new StringTokenizer(bf.readLine());
}
return st.nextToken();
}
static int nextInt() throws IOException
{
return Integer.parseInt(next());
}
static long nextLong() throws IOException
{
return Long.parseLong(next());
}
}
}