結果

問題 No.430 文字列検索
ユーザー 3737
提出日時 2016-10-02 22:48:50
言語 Java21
(openjdk 21)
結果
TLE  
実行時間 -
コード長 4,458 bytes
コンパイル時間 2,521 ms
コンパイル使用メモリ 86,632 KB
実行使用メモリ 47,528 KB
最終ジャッジ日時 2024-11-10 00:02:25
合計ジャッジ時間 5,718 ms
ジャッジサーバーID
(参考情報)
judge1 / judge4
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 47 ms
42,060 KB
testcase_01 TLE -
testcase_02 -- -
testcase_03 -- -
testcase_04 -- -
testcase_05 -- -
testcase_06 -- -
testcase_07 -- -
testcase_08 -- -
testcase_09 -- -
testcase_10 -- -
testcase_11 -- -
testcase_12 -- -
testcase_13 -- -
testcase_14 -- -
testcase_15 -- -
testcase_16 -- -
testcase_17 -- -
権限があれば一括ダウンロードができます

ソースコード

diff #

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;

public class Main {
	static InputStream is;
	static PrintWriter out;
	static String INPUT = "";

	public static void main(String[] args) throws Exception {
		new Main().run();
	}

	void solver() {
		char[] s = ns().toCharArray();
		int n = s.length;
		// long[] mod = { 1000000009, 1000000007 };
		long[] mod = { 1000000009 };
		long b = 29;
		long[][] hash = new long[mod.length][n];
		long[][] pow = new long[mod.length][n];
		for (int mode = 0; mode < mod.length; mode++) {
			for (int i = 0; i < n; i++) {
				if (i == 0)
					pow[mode][i] = 1;
				else {
					pow[mode][i] = pow[mode][i - 1] * b;
					if (pow[mode][i] >= mod[mode])
						pow[mode][i] %= mod[mode];
				}
			}
		}
		for (int mode = 0; mode < mod.length; mode++) {
			for (int i = n - 1; i >= 0; i--) {
				hash[mode][i] = (s[i] - 'A') + (i == n - 1 ? 0 : hash[mode][i + 1] * b);
				if (hash[mode][i] > mod[mode])
					hash[mode][i] %= mod[mode];
			}
		}
		long ans = 0;
		int m = ni();
		for (; m > 0; m--) {
			char[] c = ns().toCharArray();
			long[] hash_c = new long[mod.length];
			if (c.length > n)
				continue;
			for (int mode = 0; mode < mod.length; mode++) {
				for (int i = 0; i < c.length; i++) {
					hash_c[mode] += (c[i] - 'A') * pow[mode][i];
					if (hash_c[mode] > mod[mode])
						hash_c[mode] %= mod[mode];
				}
			}
			for (int i = 0; i <= n - c.length; i++) {
				boolean f = true;
				for (int mode = 0; mode < mod.length; mode++) {
					if ((hash[mode][i]
							- ((n - c.length == i) ? 0 : hash[mode][i + c.length] * pow[mode][c.length]) % mod[mode]
							+ mod[mode]) % mod[mode] != hash_c[mode]) {
						f = false;
						break;
					}
				}
				if (f) {
					ans++;
				}
			}
		}
		out.println(ans);
	}

	void run() {
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		solver();
		out.flush();

	}

	static long nl() {
		try {
			long num = 0;
			boolean minus = false;
			while ((num = is.read()) != -1 && !((num >= '0' && num <= '9') || num == '-'))
				;
			if (num == '-') {
				num = 0;
				minus = true;
			} else {
				num -= '0';
			}

			while (true) {
				int b = is.read();
				if (b >= '0' && b <= '9') {
					num = num * 10 + (b - '0');
				} else {
					return minus ? -num : num;
				}
			}
		} catch (IOException e) {
		}
		return -1;
	}

	static char nc() {
		try {
			int b = skip();
			if (b == -1)
				return 0;
			return (char) b;
		} catch (IOException e) {
		}
		return 0;
	}

	static double nd() {
		try {
			return Double.parseDouble(ns());
		} catch (Exception e) {
		}
		return 0;
	}

	static String ns() {
		try {
			int b = skip();
			StringBuilder sb = new StringBuilder();
			if (b == -1)
				return "";
			sb.append((char) b);
			while (true) {
				b = is.read();
				if (b == -1)
					return sb.toString();
				if (b <= ' ')
					return sb.toString();
				sb.append((char) b);
			}
		} catch (IOException e) {
		}
		return "";
	}

	public static char[] ns(int n) {
		char[] buf = new char[n];
		try {
			int b = skip(), p = 0;
			if (b == -1)
				return null;
			buf[p++] = (char) b;
			while (p < n) {
				b = is.read();
				if (b == -1 || b <= ' ')
					break;
				buf[p++] = (char) b;
			}
			return Arrays.copyOf(buf, p);
		} catch (IOException e) {
		}
		return null;
	}

	public static byte[] nse(int n) {
		byte[] buf = new byte[n];
		try {
			int b = skip();
			if (b == -1)
				return null;
			is.read(buf);
			return buf;
		} catch (IOException e) {
		}
		return null;
	}

	static int skip() throws IOException {
		int b;
		while ((b = is.read()) != -1 && !(b >= 33 && b <= 126))
			;
		return b;
	}

	static boolean eof() {
		try {
			is.mark(1000);
			int b = skip();
			is.reset();
			return b == -1;
		} catch (IOException e) {
			return true;
		}
	}

	static int ni() {
		try {
			int num = 0;
			boolean minus = false;
			while ((num = is.read()) != -1 && !((num >= '0' && num <= '9') || num == '-'))
				;
			if (num == '-') {
				num = 0;
				minus = true;
			} else {
				num -= '0';
			}

			while (true) {
				int b = is.read();
				if (b >= '0' && b <= '9') {
					num = num * 10 + (b - '0');
				} else {
					return minus ? -num : num;
				}
			}
		} catch (IOException e) {
		}
		return -1;
	}

	static void tr(Object... o) {
		System.out.println(Arrays.deepToString(o));
	}
}
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