题解 | #小乐乐与序列#
小乐乐与序列
http://www.nowcoder.com/practice/9a1c1c764ce04fed8ceff7714e74d3b6
import java.io.*;
import java.util.Collection;
import java.util.TreeSet;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int n = Integer.parseInt(br.readLine());
// TreeSet集合按照大小默认升序
Collection<Integer> list = new TreeSet<>();
for (int i = 0; i < n; i++) {
list.add(Integer.parseInt(br.readLine()));
}
list.forEach(s -> System.out.print(s + " "));
}
}
