結果
問題 | No.774 tatyamと素数大富豪 |
ユーザー | hiromi_ayase |
提出日時 | 2018-12-25 14:42:22 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,646 bytes |
コンパイル時間 | 2,461 ms |
コンパイル使用メモリ | 89,632 KB |
実行使用メモリ | 60,908 KB |
最終ジャッジ日時 | 2024-10-01 13:24:50 |
合計ジャッジ時間 | 15,687 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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 | 438 ms
60,868 KB |
testcase_01 | AC | 73 ms
55,508 KB |
testcase_02 | AC | 76 ms
55,508 KB |
testcase_03 | AC | 79 ms
56,184 KB |
testcase_04 | AC | 78 ms
55,520 KB |
testcase_05 | AC | 82 ms
55,800 KB |
testcase_06 | AC | 78 ms
55,552 KB |
testcase_07 | WA | - |
testcase_08 | AC | 80 ms
55,684 KB |
testcase_09 | AC | 91 ms
56,540 KB |
testcase_10 | TLE | - |
testcase_11 | AC | 1,919 ms
56,220 KB |
testcase_12 | AC | 264 ms
60,396 KB |
testcase_13 | AC | 269 ms
60,908 KB |
testcase_14 | AC | 91 ms
56,080 KB |
testcase_15 | TLE | - |
testcase_16 | AC | 81 ms
55,304 KB |
testcase_17 | AC | 105 ms
55,804 KB |
testcase_18 | TLE | - |
ソースコード
import java.util.Arrays; public class Main { private static void solve() { int n = ni(); int[] a = na(n); long[] list = new long[500000]; int ptr = 0; while (true) { long x = 0; for (int v : a) { x *= v >= 10 ? 100 : 10; x += v; } list[ptr++] = x; if (!nextPermutation(a)) { break; } } list = Arrays.copyOf(list, ptr); Arrays.sort(list); for (int i = ptr - 1; i >= 0; i--) { if (isPrime(list[i])) { System.out.println(list[i]); return; } } System.out.println(-1); } public static boolean isPrime(long x) { if (x == 0 || x == 1 || x % 2 == 0) { return false; } long sqrtX = (long) Math.sqrt(x); for (long i = 3; i <= sqrtX; i += 2) { if (x % i == 0) { return false; } } return true; } public static boolean nextPermutation(int[] a) { int n = a.length; int i; for (i = n - 2; i >= 0 && a[i] >= a[i + 1]; i--); if (i == -1) return false; int j; for (j = i + 1; j < n && a[i] < a[j]; j++); int d = a[i]; a[i] = a[j - 1]; a[j - 1] = d; for (int p = i + 1, q = n - 1; p < q; p++, q--) { d = a[p]; a[p] = a[q]; a[q] = d; } return true; } public static void main(String[] args) { new Thread(null, new Runnable() { @Override public void run() { long start = System.currentTimeMillis(); String debug = args.length > 0 ? args[0] : null; if (debug != null) { try { is = java.nio.file.Files.newInputStream(java.nio.file.Paths.get(debug)); } catch (Exception e) { throw new RuntimeException(e); } } reader = new java.io.BufferedReader(new java.io.InputStreamReader(is), 32768); solve(); out.flush(); tr((System.currentTimeMillis() - start) + "ms"); } }, "", 64000000).start(); } private static java.io.InputStream is = System.in; private static java.io.PrintWriter out = new java.io.PrintWriter(System.out); private static java.util.StringTokenizer tokenizer = null; private static java.io.BufferedReader reader; public static String next() { while (tokenizer == null || !tokenizer.hasMoreTokens()) { try { tokenizer = new java.util.StringTokenizer(reader.readLine()); } catch (Exception e) { throw new RuntimeException(e); } } return tokenizer.nextToken(); } private static double nd() { return Double.parseDouble(next()); } private static long nl() { return Long.parseLong(next()); } private static int[] na(int n) { int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = ni(); return a; } private static char[] ns() { return next().toCharArray(); } private static long[] nal(int n) { long[] a = new long[n]; for (int i = 0; i < n; i++) a[i] = nl(); return a; } private static int[][] ntable(int n, int m) { int[][] table = new int[n][m]; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { table[i][j] = ni(); } } return table; } private static int[][] nlist(int n, int m) { int[][] table = new int[m][n]; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { table[j][i] = ni(); } } return table; } private static int ni() { return Integer.parseInt(next()); } private static void tr(Object... o) { if (is != System.in) System.out.println(java.util.Arrays.deepToString(o)); } }