結果
問題 | No.1560 majority x majority |
ユーザー |
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提出日時 | 2023-02-03 08:53:52 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 435 ms / 2,000 ms |
コード長 | 2,535 bytes |
コンパイル時間 | 3,461 ms |
コンパイル使用メモリ | 94,268 KB |
実行使用メモリ | 45,860 KB |
最終ジャッジ日時 | 2024-07-02 13:16:24 |
合計ジャッジ時間 | 9,765 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 26 |
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(); int m = sc.nextInt(); int[] judges = new int[n]; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { judges[i] |= (sc.nextInt() << j); } } int[] dp = new int[1 << m]; dp[0] = 1; for (int i = 1; i < (1 << m); i++) { int reverse = (1 << m) - 1 - i; for (int j = 0; j < m; j++) { if ((i & (1 << j)) == 0) { continue; } int agree = 0; int against = 0; for (int k = 0; k < n; k++) { if ((judges[k] & reverse) != reverse) { continue; } if ((judges[k] & (1 << j)) == 0 ) { against++; } else { agree++; } } if (agree >= against) { dp[i] += dp[i ^ (1 <<j)]; } } } System.out.println(dp[(1 << m) - 1]); } } 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(); } }