結果
問題 | No.366 ロボットソート |
ユーザー |
|
提出日時 | 2016-04-29 23:11:43 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 84 ms / 2,000 ms |
コード長 | 2,111 bytes |
コンパイル時間 | 5,187 ms |
コンパイル使用メモリ | 78,224 KB |
実行使用メモリ | 38,072 KB |
最終ジャッジ日時 | 2024-12-29 17:42:50 |
合計ジャッジ時間 | 6,772 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 23 |
ソースコード
import java.io.*;import java.util.*;public class Main_yukicoder366 {public static void main(String[] args) {Scanner sc = new Scanner(System.in);Printer pr = new Printer(System.out);int n = sc.nextInt();int k = sc.nextInt();int[] a = new int[n];for (int i = 0; i < n; i++) {a[i] = sc.nextInt();}int cnt = 0;boolean flag = true;while (flag) {flag = false;for (int i = 0; i < n; i++) {if (i + k >= n) {break;}if (a[i] > a[i + k]) {int tmp = a[i];a[i] = a[i + k];a[i + k] = tmp;cnt++;flag = true;}}}boolean sorted = true;for (int i = 0; i < n - 1; i++) {if (a[i] > a[i + 1]) {sorted = false;break;}}if (sorted) {pr.println(cnt);} else {pr.println(-1);}pr.close();sc.close();}@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);}}}