結果

問題 No.515 典型LCP
ユーザー 37zigen37zigen
提出日時 2017-05-06 00:06:30
言語 Java21
(openjdk 21)
結果
WA  
実行時間 -
コード長 3,432 bytes
コンパイル時間 2,141 ms
コンパイル使用メモリ 74,508 KB
実行使用メモリ 73,912 KB
最終ジャッジ日時 2023-10-12 10:41:24
合計ジャッジ時間 11,167 ms
ジャッジサーバーID
(参考情報)
judge12 / judge15
このコードへのチャレンジ
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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 WA -
testcase_01 WA -
testcase_02 WA -
testcase_03 AC 42 ms
49,180 KB
testcase_04 AC 43 ms
49,432 KB
testcase_05 AC 433 ms
64,696 KB
testcase_06 AC 433 ms
64,832 KB
testcase_07 AC 416 ms
64,916 KB
testcase_08 AC 440 ms
64,500 KB
testcase_09 AC 440 ms
64,284 KB
testcase_10 AC 332 ms
64,912 KB
testcase_11 AC 342 ms
64,920 KB
testcase_12 AC 347 ms
64,792 KB
testcase_13 WA -
testcase_14 AC 195 ms
62,768 KB
testcase_15 AC 436 ms
62,480 KB
testcase_16 AC 440 ms
62,392 KB
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ソースコード

diff #

import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.NoSuchElementException;
import java.util.Scanner;

class Main {
	int N, M;
	int[] X, Y;

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

	void run() {
		Scanner sc = new Scanner();
		int N = (int) sc.nextLong();
		String[] s = new String[N];
		for (int i = 0; i < N; ++i) {
			s[i] = sc.next();
		}
		int[][] id0 = new int[N][];
//		long[][] id1 = new long[N][];
		long[][] id2 = new long[N][];
		for (int i = 0; i < N; ++i) {
			id0[i] = new int[s[i].length()];
//			id1[i] = new long[s[i].length()];
			id2[i] = new long[s[i].length()];
			for (int j = 0; j < s[i].length(); ++j) {
				id0[i][j] = (j - 1 >= 0 ? (id0[i][j - 1]) : 0) + (s[i].charAt(j) - 'a');
//				id1[i][j] = (j - 1 >= 0 ? (id1[i][j - 1] << 1) : 0) + (s[i].charAt(j) - 'a');
				id2[i][j] = (j - 1 >= 0 ? (id2[i][j - 1]) << 2 : 0) + (s[i].charAt(j) - 'a');
			}
		}
		long M = sc.nextLong();
		long x = sc.nextLong();
		long d = sc.nextLong();
		int ans = 0;
		// int[] i_ = new int[(int) M];
		// int[] j_ = new int[(int) M];
		for (int k = 0; k < M; ++k) {
			int i = (int) (x / (N - 1)) + 1;
			int j = (int) (x % (N - 1)) + 1;
			if (i > j) {
				int tmp = i;
				i = j;
				j = tmp;
			} else {
				j = j + 1;
			}
			x = (x + d) % (N * (N - 1));
			--i;
			--j;
			int l = 0;
			int r = 1 + Math.min(s[i].length(), s[j].length());
			int cnt = 0;
			while (r - l > 1) {
				++cnt;
				if (cnt > 100)
					throw new AssertionError();
				int m = (l + r) / 2;
				if (id0[i][m - 1] == id0[j][m - 1] 
						&& id2[i][m - 1] == id2[j][m - 1]) {
					l = m;
				} else {
					r = m;
				}
			}
			ans += l;
		}
		System.out.println(ans);

	}

	class Scanner {
		private final InputStream in = System.in;
		private final byte[] buffer = new byte[1024];
		private int ptr = 0;
		private int buflen = 0;

		private boolean hasNextByte() {
			if (ptr < buflen) {
				return true;
			} else {
				ptr = 0;
				try {
					buflen = in.read(buffer);
				} catch (IOException e) {
					e.printStackTrace();
				}
				if (buflen <= 0) {
					return false;
				}
			}
			return true;
		}

		private int readByte() {
			if (hasNextByte())
				return buffer[ptr++];
			else
				return -1;
		}

		private boolean isPrintableChar(int c) {
			return 33 <= c && c <= 126;
		}

		private void skipUnprintable() {
			while (hasNextByte() && !isPrintableChar(buffer[ptr]))
				ptr++;
		}

		public boolean hasNext() {
			skipUnprintable();
			return hasNextByte();
		}

		public String next() {
			if (!hasNext())
				throw new NoSuchElementException();
			StringBuilder sb = new StringBuilder();
			int b = readByte();
			while (isPrintableChar(b)) {
				sb.appendCodePoint(b);
				b = readByte();
			}
			return sb.toString();
		}

		public long nextLong() {
			if (!hasNext())
				throw new NoSuchElementException();
			long n = 0;
			boolean minus = false;
			int b = readByte();
			if (b == '-') {
				minus = true;
				b = readByte();
			}
			if (b < '0' || '9' < b) {
				throw new NumberFormatException();
			}
			while (true) {
				if ('0' <= b && b <= '9') {
					n *= 10;
					n += b - '0';
				} else if (b == -1 || !isPrintableChar(b)) {
					return minus ? -n : n;
				} else {
					throw new NumberFormatException();
				}
				b = readByte();
			}
		}
	}

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

}
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