結果
問題 | No.253 ロウソクの長さ |
ユーザー |
|
提出日時 | 2015-07-27 17:02:28 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 166 ms / 2,000 ms |
コード長 | 2,188 bytes |
コンパイル時間 | 3,947 ms |
コンパイル使用メモリ | 78,496 KB |
実行使用メモリ | 58,268 KB |
平均クエリ数 | 48.97 |
最終ジャッジ日時 | 2024-07-16 20:51:43 |
合計ジャッジ時間 | 11,586 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 36 |
ソースコード
import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.PrintStream;import java.io.PrintWriter;import java.util.Arrays;import java.util.Iterator;public class Main_yukicoder253 {public static void main(String[] args) {Scanner sc = new Scanner(System.in);Printer pr = new Printer(System.out);int count = 1;if (ask(sc, pr, 40) < 0) {while (ask(sc, pr, 9) > 0) {count++;}pr.printf("! %d\n", 9 + count);} else {int l = 39;int r = 1000000001;while (r > l) {int mid = (r + l) / 2;count++;if (ask(sc, pr, mid) <= 0) {r = mid;} else {l = mid + 1;}}int tmp = r - count;while (ask(sc, pr, tmp) > 0) {count++;}pr.printf("! %d\n", tmp + count);}pr.close();sc.close();}private static int ask(Scanner sc, Printer pr, int i) {pr.printf("? %d\n", i);pr.flush();return sc.nextInt();}@SuppressWarnings("unused")private static class Scanner {BufferedReader br;Iterator<String> it;Scanner (InputStream in) {br = new BufferedReader(new InputStreamReader(in));}String next() throws RuntimeException {try {if (it == null || !it.hasNext()) {it = Arrays.asList(br.readLine().split(" ")).iterator();}return it.next();} catch (IOException e) {throw new IllegalStateException();}}int nextInt() throws RuntimeException {return Integer.parseInt(next());}long nextLong() throws RuntimeException {return Long.parseLong(next());}float nextFloat() throws RuntimeException {return Float.parseFloat(next());}double nextDouble() throws RuntimeException {return Double.parseDouble(next());}void close() {try {br.close();} catch (IOException e) {// throw new IllegalStateException();}}}private static class Printer extends PrintWriter {Printer(PrintStream out) {super(out);}}}