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Copy pathBJAlgo_1764.java
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33 lines (27 loc) · 936 Bytes
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Copy pathBJAlgo_1764.java
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33 lines (27 loc) · 936 Bytes
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import java.io.*;
import java.util.*;
public class BJAlgo_1764 {
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String[] nm = br.readLine().split(" ");
int N = Integer.parseInt(nm[0]);
int M = Integer.parseInt(nm[1]);
List result = new ArrayList();
Map<String, String> member = new HashMap<>();
for (int i = 0; i < N; i++) {
String mb = br.readLine();
member.put(mb, mb);
}
for (int i = 0; i < M; i++) {
String mb = br.readLine();
if (member.containsKey(mb)) {
result.add(member.get(mb));
}
}
Collections.sort(result);
System.out.println(result.size());
for (int i = 0; i < result.size(); i++) {
System.out.println(result.get(i));
}
}
}