結果
問題 | No.2454 Former < Latter |
ユーザー |
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提出日時 | 2023-09-04 13:32:12 |
言語 | Java (openjdk 23) |
結果 |
RE
|
実行時間 | - |
コード長 | 3,024 bytes |
コンパイル時間 | 3,708 ms |
コンパイル使用メモリ | 92,948 KB |
実行使用メモリ | 77,960 KB |
最終ジャッジ日時 | 2024-06-22 12:00:09 |
合計ジャッジ時間 | 9,382 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 |
---|---|
sample | AC * 1 |
other | AC * 9 RE * 14 |
ソースコード
import java.io.*;import java.util.*;import java.util.stream.*;public class Main {public static void main(String[] args) throws Exception {Scanner sc = new Scanner();int t = sc.nextInt();StringBuilder sb = new StringBuilder();while (t-- > 0) {int n = sc.nextInt();char[] inputs = sc.next().toCharArray();long[][] hashes = new long[10][n];for (int i = 0; i < n; i++) {hashes[0][i] = inputs[i] - 'a';}for (int i = 1; i < 10; i++) {for (int j = 0; j + i < n; j++) {hashes[i][j] = hashes[i - 1][j] * 26 + hashes[0][j + i];}}int ans = 0;for (int i = 1; i < n; i++) {int left = i;int right = n - i;int idx = 0;boolean decided = false;while (left - idx > 0 && right - idx> 0) {int length = Math.min(10, Math.min(left - idx, right - idx));if (hashes[length - idx - 1][0 + idx] == hashes[length - idx - 1][i + idx]) {idx += 10;} else if (hashes[length - idx - 1][0 + idx] < hashes[length - idx - 1][i + idx]) {ans++;decided = true;break;} else {decided = true;break;}}if (!decided) {if (left < right) {ans++;}}}sb.append(ans).append("\n");}System.out.print(sb);}}class Utilities {static String arrayToLineString(Object[] arr) {return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));}static String arrayToLineString(int[] arr) {return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));}}class Scanner {BufferedReader br = new BufferedReader(new InputStreamReader(System.in));StringTokenizer st = new StringTokenizer("");StringBuilder sb = new StringBuilder();public Scanner() throws Exception {}public int nextInt() throws Exception {return Integer.parseInt(next());}public long nextLong() throws Exception {return Long.parseLong(next());}public double nextDouble() throws Exception {return Double.parseDouble(next());}public int[] nextIntArray() throws Exception {return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();}public String next() throws Exception {while (!st.hasMoreTokens()) {st = new StringTokenizer(br.readLine());}return st.nextToken();}}