結果
問題 | No.2449 square_permutation |
ユーザー | tenten |
提出日時 | 2023-09-04 10:10:02 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,471 bytes |
コンパイル時間 | 2,541 ms |
コンパイル使用メモリ | 96,384 KB |
実行使用メモリ | 80,140 KB |
最終ジャッジ日時 | 2024-06-22 09:12:20 |
合計ジャッジ時間 | 11,198 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 59 ms
50,912 KB |
testcase_01 | AC | 59 ms
50,836 KB |
testcase_02 | AC | 61 ms
51,064 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | AC | 61 ms
50,884 KB |
testcase_23 | WA | - |
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 n = sc.nextInt(); TreeSet<Integer> square = new TreeSet<>(); TreeSet<Integer> sExists = new TreeSet<>(); for (int i = 1; i * i <= n; i++) { square.add(i * i); sExists.add(i * i); } int[] ans = new int[n]; for (int i = 1; i <= n; i++) { if (ans[i - 1] > 0) { continue; } if (square.contains(i)) { ans[i - 1] = sExists.pollLast(); ans[ans[i - 1] - 1] = i; } else { Integer current = square.floor(n / i); while (current != null) { if (ans[i * current - 1] == 0) { ans[i - 1] = i * current; ans[i * current - 1] = i; break; } current = square.lower(current); } } } System.out.println(String.join(" ", Arrays.stream(ans).mapToObj(String::valueOf).toArray(String[]::new))); } } 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(); } }