43 lines
1.3 KiB
Java
43 lines
1.3 KiB
Java
import java.util.Scanner;
|
|
|
|
public class Main {
|
|
public static void main(String[] args) {
|
|
Scanner in = new Scanner(System.in);
|
|
int n = in.nextInt();
|
|
int[] mention = new int[101];
|
|
boolean[][] by = new boolean[101][101];
|
|
for (int i = 0; i < n; i++) {
|
|
int sender = in.nextInt();
|
|
int k = in.nextInt();
|
|
for (int j = 0; j < k; j++) {
|
|
int id = in.nextInt();
|
|
if (id >= 0 && id <= 100) {
|
|
mention[id]++;
|
|
if (sender >= 0 && sender <= 100)
|
|
by[id][sender] = true;
|
|
}
|
|
}
|
|
}
|
|
int bestId = 0;
|
|
int bestCount = -1;
|
|
for (int id = 0; id <= 100; id++) {
|
|
if (mention[id] > bestCount) {
|
|
bestCount = mention[id];
|
|
bestId = id;
|
|
}
|
|
}
|
|
System.out.println(bestId);
|
|
StringBuilder sb = new StringBuilder();
|
|
boolean first = true;
|
|
for (int s = 0; s <= 100; s++) {
|
|
if (by[bestId][s]) {
|
|
if (!first)
|
|
sb.append(' ');
|
|
sb.append(s);
|
|
first = false;
|
|
}
|
|
}
|
|
System.out.println(sb.toString());
|
|
in.close();
|
|
}
|
|
} |