結果

問題 No.430 文字列検索
ユーザー 3737
提出日時 2016-10-02 23:20:35
言語 Java21
(openjdk 21)
結果
AC  
実行時間 522 ms / 2,000 ms
コード長 5,292 bytes
コンパイル時間 5,853 ms
コンパイル使用メモリ 77,972 KB
実行使用メモリ 75,820 KB
最終ジャッジ日時 2023-08-15 17:25:38
合計ジャッジ時間 10,668 ms
ジャッジサーバーID
（参考情報） 		judge15 / judge14
このコードへのチャレンジ（β）

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 39 ms
49,552 KB
testcase_01 AC 522 ms
75,820 KB
testcase_02 AC 180 ms
59,164 KB
testcase_03 AC 337 ms
68,588 KB
testcase_04 AC 39 ms
49,480 KB
testcase_05 AC 38 ms
49,240 KB
testcase_06 AC 39 ms
49,296 KB
testcase_07 AC 40 ms
49,448 KB
testcase_08 AC 509 ms
75,592 KB
testcase_09 AC 43 ms
49,560 KB
testcase_10 AC 134 ms
56,960 KB
testcase_11 AC 486 ms
71,108 KB
testcase_12 AC 426 ms
69,540 KB
testcase_13 AC 415 ms
71,556 KB
testcase_14 AC 475 ms
68,364 KB
testcase_15 AC 442 ms
67,056 KB
testcase_16 AC 274 ms
61,936 KB
testcase_17 AC 218 ms
60,040 KB
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 # 

package No400番台;

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

public class Q430 {
	static InputStream is;
	static PrintWriter out;
	static String INPUT = "";

	public static void main(String[] args) throws Exception {
		new Q430().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();
		ArrayList<Long>[][] list = new ArrayList[mod.length][11];
		for (int mode = 0; mode < mod.length; mode++) {
			for (int i = 0; i <= 10; i++) {
				list[mode][i] = new ArrayList<Long>();
			}
		}
		for (int len = 1; len <= 10; len++) {
			for (int i = 0; i <= n - len; i++) {
				for (int mode = 0; mode < mod.length; mode++) {
					long val = (hash[mode][i] - ((n - len == i) ? 0 : hash[mode][i + len] * pow[mode][len]) % mod[mode]
							+ mod[mode]) % mod[mode];
					list[mode][len].add(val);
				}
			}
		}
		for (int mode = 0; mode < mod.length; mode++) {
			for (int i = 0; i < list[mode].length; i++) {
				list[mode][i].sort(null);
			}
		}

		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 mode = 0; mode < mod.length; mode++) {
				long val = hash_c[mode];
				int imp = list[mode][c.length].size();
				int pos = -1;
				while (imp - pos > 1) {
					int mid = (imp + pos) / 2;
					if (list[mode][c.length].get(mid) > val) {
						imp = mid;
					} else {
						pos = mid;
					}
				}
				if (pos != -1 && list[mode][c.length].get(pos) == val) {
					ans++;
					while (pos - 1 >= 0 && list[mode][c.length].get(pos - 1) == val) {
						pos--;
						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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