提出 #42902201

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ソースコード 拡げる

import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Main {
	public static void main(String[] args) throws Exception {
		try (Scanner scanner = new Scanner(System.in)) {
			int n = scanner.nextInt();
			Set<String> set = new HashSet<>();
			for (int i = 0; i < n; i++) {
				String val = scanner.next();
				if (set.size() > 0) {
					for (String v : set) {
						if (check(v + val) || check(val + v)) {
							System.out.println("Yes");
							return;
						}
					}
				}
				set.add(val);
			}
			System.out.println("No");
		}
	}

	private static boolean check(String val) {
		for (int i = 0, j = val.length() - 1; i < j; i++, j--) {
			if (val.charAt(i) != val.charAt(j)) {
				return false;
			}
		}
		return true;
	}
}

提出情報

ジャッジ結果