結果

問題 No.181 A↑↑N mod M
ユーザー 37zigen37zigen
提出日時 2018-04-15 21:04:29
言語 Java21
(openjdk 21)
結果
AC  
実行時間 50 ms / 5,000 ms
コード長 3,251 bytes
コンパイル時間 2,137 ms
コンパイル使用メモリ 78,688 KB
実行使用メモリ 36,988 KB
最終ジャッジ日時 2024-06-27 00:07:41
合計ジャッジ時間 5,630 ms
ジャッジサーバーID
(参考情報)
judge3 / 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 50 ms
36,864 KB
testcase_01 AC 48 ms
36,448 KB
testcase_02 AC 50 ms
36,572 KB
testcase_03 AC 49 ms
36,952 KB
testcase_04 AC 50 ms
36,456 KB
testcase_05 AC 49 ms
36,676 KB
testcase_06 AC 48 ms
36,732 KB
testcase_07 AC 49 ms
36,700 KB
testcase_08 AC 49 ms
36,856 KB
testcase_09 AC 48 ms
36,692 KB
testcase_10 AC 47 ms
36,656 KB
testcase_11 AC 48 ms
36,808 KB
testcase_12 AC 48 ms
36,888 KB
testcase_13 AC 49 ms
36,988 KB
testcase_14 AC 49 ms
36,456 KB
testcase_15 AC 48 ms
36,320 KB
testcase_16 AC 47 ms
36,732 KB
testcase_17 AC 49 ms
36,884 KB
testcase_18 AC 49 ms
36,800 KB
testcase_19 AC 49 ms
36,456 KB
testcase_20 AC 47 ms
36,456 KB
testcase_21 AC 48 ms
36,676 KB
testcase_22 AC 50 ms
36,876 KB
testcase_23 AC 48 ms
36,676 KB
testcase_24 AC 49 ms
36,692 KB
testcase_25 AC 49 ms
36,804 KB
testcase_26 AC 48 ms
36,656 KB
testcase_27 AC 50 ms
36,808 KB
testcase_28 AC 49 ms
36,456 KB
testcase_29 AC 49 ms
36,768 KB
testcase_30 AC 48 ms
36,952 KB
testcase_31 AC 48 ms
36,676 KB
testcase_32 AC 49 ms
36,572 KB
testcase_33 AC 49 ms
36,900 KB
testcase_34 AC 48 ms
36,804 KB
testcase_35 AC 48 ms
36,856 KB
testcase_36 AC 49 ms
36,836 KB
testcase_37 AC 49 ms
36,732 KB
testcase_38 AC 48 ms
36,656 KB
testcase_39 AC 49 ms
36,700 KB
testcase_40 AC 48 ms
36,916 KB
testcase_41 AC 47 ms
36,692 KB
testcase_42 AC 48 ms
36,456 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 #

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.NoSuchElementException;

public class Main {
	public static void main(String[] args) throws FileNotFoundException {
		long t = System.currentTimeMillis();
		new Main().run();
		System.err.println(System.currentTimeMillis() - t);
	}

	long gcd(long a, long b) {
		if (a > b)
			return gcd(b, a);
		if (a == 0)
			return b;
		return gcd(b % a, a);
	}

	long pow(long a, long n, long m) {
		long ret = 1;
		for (; n > 0; n >>= 1, a = a * a % m) {
			if (n % 2 == 1) {
				ret = ret * a % m;
			}
		}
		return ret;
	}

	int[] phi = new int[3000];

	long g(long a, long n, int m) {
		if (m == 1)
			return 0;
		else if (n == 0) {
			return 1 % m;
		} else if (n == 1) {
			return a % m;
		} else if (n == 2) {
			return pow(a % m, a, m);
		} else if (n == 3 && a == 2) {
			return 16 % m;
		} else {
			return pow(a, g(a, n - 1, phi[m]) + phi[m], m);
		}
	}

	public void run() {
		Scanner sc = new Scanner();
		long a = sc.nextLong();
		long n = sc.nextLong();
		int m = sc.nextInt();
		for (int i = 2; i < phi.length; ++i) {
			phi[i] = i;
		}
		for (int i = 2; i < phi.length; ++i) {
			if (phi[i] != i)
				continue;
			for (int j = i; j < phi.length; j += i) {
				phi[j] = phi[j] / i * (i - 1);
			}
		}
		System.out.println(g(a, n, m));
	}

	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();
			}
		}

		public int nextInt() {
			return (int) nextLong();
		}
	}

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

}
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