結果
問題 | No.130 XOR Minimax |
ユーザー |
![]() |
提出日時 | 2023-04-03 17:25:56 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 633 ms / 5,000 ms |
コード長 | 2,274 bytes |
コンパイル時間 | 2,543 ms |
コンパイル使用メモリ | 91,064 KB |
実行使用メモリ | 71,896 KB |
最終ジャッジ日時 | 2024-09-25 00:48:27 |
合計ジャッジ時間 | 13,201 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 21 |
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();ArrayList<Integer> list = new ArrayList<>();for (int i = 0; i < n; i++) {list.add(sc.nextInt());}System.out.println(check(30, list));}static int check(int idx, ArrayList<Integer> list) {if (idx < 0) {return 0;}ArrayList<Integer> ev = new ArrayList<>();ArrayList<Integer> od = new ArrayList<>();for (int x : list) {if ((x & (1 << idx)) == 0) {ev.add(x);} else {od.add(x);}}if (ev.size() == 0) {return check(idx - 1, od);} else if (od.size() == 0) {return check(idx - 1, ev);} else {return (1 << idx) + Math.min(check(idx - 1, ev), check(idx - 1, od));}}}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();}}