結果
問題 | No.2195 AND Set |
ユーザー |
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提出日時 | 2023-01-25 12:57:02 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 1,154 ms / 2,000 ms |
コード長 | 2,831 bytes |
コンパイル時間 | 4,511 ms |
コンパイル使用メモリ | 95,856 KB |
実行使用メモリ | 66,360 KB |
最終ジャッジ日時 | 2024-06-26 18:12:02 |
合計ジャッジ時間 | 18,879 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 13 |
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 q = sc.nextInt();StringBuilder sb = new StringBuilder();int[] counts = new int[30];HashSet<Integer> exists = new HashSet<>();while (q-- > 0) {int type = sc.nextInt();if (type == 1) {int x = sc.nextInt();if (exists.contains(x)) {continue;}for (int i = 0; i < 30; i++) {if ((x & (1 << i)) > 0) {counts[i]++;}}exists.add(x);} else if (type == 2) {int x = sc.nextInt();if (!exists.contains(x)) {continue;}for (int i = 0; i < 30; i++) {if ((x & (1 << i)) > 0) {counts[i]--;}}exists.remove(x);} else {if (exists.size() == 0) {sb.append("-1\n");continue;}int ans = 0;for (int i = 0; i < 30; i++) {if (counts[i] == exists.size()) {ans += (1 << i);}}sb.append(ans).append("\n");}}System.out.print(sb);}}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();}}