結果

問題 No.588 空白と回文
ユーザー hiromi_ayase
提出日時 2017-11-03 22:36:06
言語 Java8
(openjdk 1.8.0.191)
結果
AC  
実行時間 91 ms
コード長 2,669 Byte
コンパイル時間 1,765 ms
使用メモリ 19,556 KB
最終ジャッジ日時 2019-06-16 11:01:14

テストケース

テストケース表示
入力 結果 実行時間
使用メモリ
0.txt AC 84 ms
19,280 KB
1.txt AC 84 ms
19,284 KB
2.txt AC 87 ms
19,280 KB
3.txt AC 91 ms
19,552 KB
4.txt AC 84 ms
19,284 KB
5.txt AC 83 ms
19,280 KB
6.txt AC 83 ms
19,284 KB
7.txt AC 84 ms
19,280 KB
8.txt AC 86 ms
19,284 KB
9.txt AC 84 ms
19,284 KB
10.txt AC 85 ms
19,280 KB
11.txt AC 89 ms
19,456 KB
12.txt AC 89 ms
19,452 KB
13.txt AC 85 ms
19,280 KB
14.txt AC 84 ms
19,280 KB
15.txt AC 83 ms
19,280 KB
16.txt AC 85 ms
19,284 KB
17.txt AC 91 ms
19,456 KB
18.txt AC 82 ms
19,284 KB
19.txt AC 83 ms
19,280 KB
20.txt AC 90 ms
19,456 KB
21.txt AC 90 ms
19,556 KB
22.txt AC 91 ms
19,456 KB
23.txt AC 90 ms
19,552 KB
24.txt AC 84 ms
19,284 KB
テストケース一括ダウンロード

ソースコード

diff #
public class Main {

	private static void solve() {
		char[] s = ns();
		int n = s.length;

		int max = 0;
		for (int i = 0; i < n; i ++) {
			int now = 0;
			//odd
			for (int j = 0; j < i; j ++) {
				if (i * 2 - j < n && s[j] == s[i * 2 - j]) {
					now ++;
				}
			}
			max = Math.max(now * 2 + 1, max);
			now = 0;
			for (int j = 0; j <= i; j ++) {
				if ((i + 1) * 2 - j - 1 < n && s[j] == s[(i + 1) * 2 - j - 1]) {
					now ++;
				}
			}
			max = Math.max(now * 2, max);
		}
		System.out.println(max);
	}

	public static void main(String[] args) {
		new Thread(null, new Runnable() {
			@Override
			public void run() {
				long start = System.currentTimeMillis();
				String debug = args.length > 0 ? args[0] : null;
				if (debug != null) {
					try {
						is = java.nio.file.Files.newInputStream(java.nio.file.Paths.get(debug));
					} catch (Exception e) {
						throw new RuntimeException(e);
					}
				}
				reader = new java.io.BufferedReader(new java.io.InputStreamReader(is), 32768);
				solve();
				out.flush();
				tr((System.currentTimeMillis() - start) + "ms");
			}
		}, "", 64000000).start();
	}

	private static java.io.InputStream is = System.in;
	private static java.io.PrintWriter out = new java.io.PrintWriter(System.out);
	private static java.util.StringTokenizer tokenizer = null;
	private static java.io.BufferedReader reader;

	public static String next() {
		while (tokenizer == null || !tokenizer.hasMoreTokens()) {
			try {
				tokenizer = new java.util.StringTokenizer(reader.readLine());
			} catch (Exception e) {
				throw new RuntimeException(e);
			}
		}
		return tokenizer.nextToken();
	}

	private static double nd() {
		return Double.parseDouble(next());
	}

	private static long nl() {
		return Long.parseLong(next());
	}

	private static int[] na(int n) {
		int[] a = new int[n];
		for (int i = 0; i < n; i++)
			a[i] = ni();
		return a;
	}

	private static char[] ns() {
		return next().toCharArray();
	}

	private static long[] nal(int n) {
		long[] a = new long[n];
		for (int i = 0; i < n; i++)
			a[i] = nl();
		return a;
	}

	private static int[][] ntable(int n, int m) {
		int[][] table = new int[n][m];
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {
				table[i][j] = ni();
			}
		}
		return table;
	}

	private static int[][] nlist(int n, int m) {
		int[][] table = new int[m][n];
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {
				table[j][i] = ni();
			}
		}
		return table;
	}

	private static int ni() {
		return Integer.parseInt(next());
	}

	private static void tr(Object... o) {
		if (is != System.in)
			System.out.println(java.util.Arrays.deepToString(o));
	}
}
0