結果
問題 | No.1731 Product of Subsequence |
ユーザー |
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提出日時 | 2023-03-27 11:24:44 |
言語 | Java (openjdk 23) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,590 bytes |
コンパイル時間 | 2,454 ms |
コンパイル使用メモリ | 92,432 KB |
実行使用メモリ | 314,956 KB |
最終ジャッジ日時 | 2024-09-19 10:10:46 |
合計ジャッジ時間 | 28,222 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 22 WA * 4 TLE * 5 |
ソースコード
import java.io.*;import java.util.*;import java.util.stream.*;public class Main {static long[] values;static ArrayList<HashMap<Long, Integer>> dp = new ArrayList<>();static final int MOD = 1000000007;public static void main(String[] args) throws Exception {Scanner sc = new Scanner();int n = sc.nextInt();long k = sc.nextLong();values = new long[n];for (int i = 0; i < n; i++) {values[i] = getGCD(sc.nextLong(), k);dp.add(new HashMap<>());}System.out.println(dfw(n - 1, k));}static int dfw(int idx, long v) {if (v == 1) {return pow(2, idx + 1);}if (idx < 0) {return 0;}if (!dp.get(idx).containsKey(v)) {dp.get(idx).put(v, (dfw(idx - 1, v) + dfw(idx - 1, v / getGCD(v, values[idx]))) % MOD);}return dp.get(idx).get(v);}static long getGCD(long x, long y) {if (y == 0) {return x;} else {return getGCD(y, x % y);}}static int pow(long x, int p) {if (p == 0) {return 1;} else if (p % 2 == 0) {return pow(x * x % MOD, p / 2);} else {return (int)(pow(x, p - 1) * (long)x % MOD);}}}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();}}