結果
問題 | No.329 全射 |
ユーザー | Grenache |
提出日時 | 2015-12-25 19:49:31 |
言語 | Java19 (openjdk 21) |
結果 |
AC
|
実行時間 | 398 ms / 2,000 ms |
コード長 | 3,060 bytes |
コンパイル時間 | 4,019 ms |
コンパイル使用メモリ | 79,392 KB |
実行使用メモリ | 70,692 KB |
最終ジャッジ日時 | 2023-10-19 03:45:55 |
合計ジャッジ時間 | 12,448 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge11 |
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 82 ms
63,496 KB |
testcase_01 | AC | 83 ms
63,516 KB |
testcase_02 | AC | 84 ms
63,512 KB |
testcase_03 | AC | 84 ms
63,456 KB |
testcase_04 | AC | 83 ms
63,496 KB |
testcase_05 | AC | 84 ms
63,560 KB |
testcase_06 | AC | 84 ms
63,524 KB |
testcase_07 | AC | 81 ms
63,524 KB |
testcase_08 | AC | 83 ms
63,528 KB |
testcase_09 | AC | 82 ms
63,516 KB |
testcase_10 | AC | 84 ms
63,472 KB |
testcase_11 | AC | 84 ms
63,516 KB |
testcase_12 | AC | 85 ms
63,528 KB |
testcase_13 | AC | 381 ms
70,304 KB |
testcase_14 | AC | 215 ms
67,944 KB |
testcase_15 | AC | 289 ms
70,288 KB |
testcase_16 | AC | 349 ms
70,292 KB |
testcase_17 | AC | 310 ms
70,404 KB |
testcase_18 | AC | 398 ms
70,396 KB |
testcase_19 | AC | 374 ms
69,768 KB |
testcase_20 | AC | 375 ms
70,324 KB |
testcase_21 | AC | 336 ms
66,488 KB |
testcase_22 | AC | 309 ms
70,240 KB |
testcase_23 | AC | 256 ms
70,692 KB |
testcase_24 | AC | 250 ms
68,436 KB |
testcase_25 | AC | 281 ms
70,564 KB |
testcase_26 | AC | 233 ms
67,564 KB |
testcase_27 | AC | 132 ms
64,500 KB |
testcase_28 | AC | 89 ms
63,528 KB |
testcase_29 | AC | 112 ms
64,084 KB |
testcase_30 | AC | 108 ms
63,976 KB |
testcase_31 | AC | 82 ms
63,508 KB |
testcase_32 | AC | 118 ms
64,080 KB |
testcase_33 | AC | 94 ms
63,584 KB |
testcase_34 | AC | 92 ms
64,048 KB |
testcase_35 | AC | 92 ms
63,572 KB |
testcase_36 | AC | 91 ms
63,564 KB |
testcase_37 | AC | 91 ms
64,088 KB |
testcase_38 | AC | 93 ms
63,556 KB |
testcase_39 | AC | 93 ms
63,552 KB |
testcase_40 | AC | 88 ms
63,560 KB |
testcase_41 | AC | 94 ms
63,560 KB |
testcase_42 | AC | 91 ms
64,084 KB |
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.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.Iterator; import java.util.List; import java.util.Queue; public class Main_yukicoder329 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); Printer pr = new Printer(System.out); int n = sc.nextInt(); int m = sc.nextInt(); int[] w = new int[n]; for (int i = 0; i < n; i++) { w[i] = sc.nextInt(); } List<Queue<Integer>> edges = new ArrayList<Queue<Integer>>(); for (int i = 0; i < n; i++) { edges.add(new ArrayDeque<Integer>()); } for (int i = 0; i < m; i++) { int ii = sc.nextInt() - 1; int jj = sc.nextInt() - 1; if (ii != jj) { edges.get(jj).add(ii); } } long ret = 0; for (int s = 0; s < n; s++) { Queue<Integer> q = new ArrayDeque<Integer>(); boolean[] used = new boolean[n]; q.add(s); used[s] = true; while (!q.isEmpty()) { int u = q.remove(); ret = (ret + getF(w[u], w[s])) % MOD; for (int e : edges.get(u)) { if (!used[e] && w[e] >= w[s]) { q.add(e); used[e] = true; } } } } pr.println(ret); pr.close(); sc.close(); } private static final long MOD = 1_000_000_007; private static long[][] dp; private static long getF(int s, int u) { if (dp == null) { dp = new long[1000 + 1][1000 + 1]; dp[0][0] = 1; for (int i = 1; i <= 1000; i++) { for (int j = 1; j <= i; j++) { dp[i][j] = (dp[i - 1][j] + dp[i - 1][j - 1]) % MOD; dp[i][j] = dp[i][j] * j % MOD; } } } return dp[s][u]; } @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); } } }