結果
| 問題 |
No.726 Tree Game
|
| コンテスト | |
| ユーザー |
tutuz
|
| 提出日時 | 2018-08-27 08:40:17 |
| 言語 | Java (openjdk 23) |
| 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 | 2,256 ms |
| コンパイル使用メモリ | 78,248 KB |
| 実行使用メモリ | 51,180 KB |
| 最終ジャッジ日時 | 2024-07-01 04:05:43 |
| 合計ジャッジ時間 | 4,593 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 25 |
ソースコード
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("");
}
}
}
tutuz