結果

問題 No.726 Tree Game
ユーザー tutuztutuz
提出日時 2018-08-27 08:40:17
言語 Java21
(openjdk 21)
結果
AC  
実行時間 95 ms / 2,000 ms
コード長 3,243 bytes
コンパイル時間 2,431 ms
コンパイル使用メモリ 76,256 KB
実行使用メモリ 51,252 KB
最終ジャッジ日時 2023-09-13 19:30:06
合計ジャッジ時間 4,404 ms
ジャッジサーバーID
(参考情報)
judge14 / 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 AC 44 ms
49,572 KB
testcase_01 AC 44 ms
49,568 KB
testcase_02 AC 43 ms
49,532 KB
testcase_03 AC 44 ms
49,644 KB
testcase_04 AC 44 ms
49,468 KB
testcase_05 AC 44 ms
49,492 KB
testcase_06 AC 44 ms
49,488 KB
testcase_07 AC 44 ms
49,636 KB
testcase_08 AC 44 ms
47,376 KB
testcase_09 AC 44 ms
49,476 KB
testcase_10 AC 44 ms
49,592 KB
testcase_11 AC 44 ms
49,564 KB
testcase_12 AC 44 ms
49,564 KB
testcase_13 AC 43 ms
49,524 KB
testcase_14 AC 44 ms
49,412 KB
testcase_15 AC 44 ms
49,888 KB
testcase_16 AC 55 ms
50,016 KB
testcase_17 AC 59 ms
50,748 KB
testcase_18 AC 45 ms
49,560 KB
testcase_19 AC 59 ms
50,748 KB
testcase_20 AC 59 ms
50,972 KB
testcase_21 AC 64 ms
50,968 KB
testcase_22 AC 95 ms
49,020 KB
testcase_23 AC 66 ms
50,876 KB
testcase_24 AC 61 ms
51,252 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 static java.lang.Math.*;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.InputMismatchException;
import java.util.StringTokenizer;

public class Main {

	public static void main(String[] args) throws IOException {
		InputStream inputStream = System.in;
		OutputStream outputStream = System.out;
		InputReader in = new InputReader(inputStream);
		PrintWriter out = new PrintWriter(outputStream);
		TaskX solver = new TaskX();
		solver.solve(1, in, out);
		out.close();
	}

	static int INF = 1 << 30;
	static long LINF = 1L << 55;
	static int MOD = 1000000007;
	static int[] mh4 = { 0, -1, 1, 0 };
	static int[] mw4 = { -1, 0, 0, 1 };
	static int[] mh8 = { -1, -1, -1, 0, 0, 1, 1, 1 };
	static int[] mw8 = { -1, 0, 1, -1, 1, -1, 0, 1 };

	static class TaskX {

		public void solve(int testNumber, InputReader in, PrintWriter out) {

			long x = in.nextLong();
			long y = in.nextLong();
			boolean xp = isPrime(x);
			boolean yp = isPrime(y);

			int d = 0;
			if (xp && yp) {
				out.println("Second");
				return;
			} else if (xp) {
				x++;
				d++;
				if (isPrime(x)) {
					out.println("Second");
					return;
				}
			} else if (yp) {
				y++;
				d++;
				if (isPrime(y)) {
					out.println("Second");
					return;
				}
			}

			long nx = x, ny = y;
			for (long i = x+1;; i++) {
				if (isPrime(i)) {
					nx = max(i-1, nx);
					break;
				}
			}

			for (long i = y+1;; i++) {
				if (isPrime(i)) {
					ny = max(i-1, ny);
					break;
				}
			}

			long move = nx - x + ny - y + d;
			out.println(move % 2 == 0 ? "Second" : "First");

		}

		boolean isPrime(long n) {

			if (n == 1L) return false;
			if (n == 2L) return true;

			boolean ret = true;

			for (int i = 2; i <= Math.sqrt(n); i++) {
				if (n % i == 0) {
					ret = false;
				}
			}

			return ret;
		}
	}

	static class InputReader {
		BufferedReader in;
		StringTokenizer tok;

		public String nextString() {
			while (!tok.hasMoreTokens()) {
				try {
					tok = new StringTokenizer(in.readLine(), " ");
				} catch (IOException e) {
					throw new InputMismatchException();
				}
			}
			return tok.nextToken();
		}

		public int nextInt() {
			return Integer.parseInt(nextString());
		}

		public long nextLong() {
			return Long.parseLong(nextString());
		}

		public double nextDouble() {
			return Double.parseDouble(nextString());
		}

		public int[] nextIntArray(int n) {
			int[] res = new int[n];
			for (int i = 0; i < n; i++) {
				res[i] = nextInt();
			}
			return res;
		}

		public int[] nextIntArrayDec(int n) {
			int[] res = new int[n];
			for (int i = 0; i < n; i++) {
				res[i] = nextInt() - 1;
			}
			return res;
		}

		public long[] nextLongArray(int n) {
			long[] res = new long[n];
			for (int i = 0; i < n; i++) {
				res[i] = nextLong();
			}
			return res;
		}

		public long[] nextLongArrayDec(int n) {
			long[] res = new long[n];
			for (int i = 0; i < n; i++) {
				res[i] = nextLong() - 1;
			}
			return res;
		}

		public InputReader(InputStream inputStream) {
			in = new BufferedReader(new InputStreamReader(inputStream));
			tok = new StringTokenizer("");
		}
	}

}
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