結果
問題 | No.698 ペアでチームを作ろう |
ユーザー | 37zigen |
提出日時 | 2018-06-09 16:47:40 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 81 ms / 1,000 ms |
コード長 | 2,694 bytes |
コンパイル時間 | 2,517 ms |
コンパイル使用メモリ | 78,980 KB |
実行使用メモリ | 38,408 KB |
最終ジャッジ日時 | 2024-06-30 12:37:16 |
合計ジャッジ時間 | 4,473 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 51 ms
36,640 KB |
testcase_01 | AC | 50 ms
36,800 KB |
testcase_02 | AC | 53 ms
36,732 KB |
testcase_03 | AC | 52 ms
36,704 KB |
testcase_04 | AC | 64 ms
37,076 KB |
testcase_05 | AC | 75 ms
37,912 KB |
testcase_06 | AC | 79 ms
38,316 KB |
testcase_07 | AC | 77 ms
38,012 KB |
testcase_08 | AC | 70 ms
37,776 KB |
testcase_09 | AC | 81 ms
38,236 KB |
testcase_10 | AC | 79 ms
38,408 KB |
testcase_11 | AC | 78 ms
37,808 KB |
testcase_12 | AC | 73 ms
37,808 KB |
testcase_13 | AC | 75 ms
37,908 KB |
testcase_14 | AC | 73 ms
37,756 KB |
ソースコード
import java.io.IOException; import java.io.InputStream; import java.math.BigInteger; import java.util.Arrays; import java.util.NoSuchElementException; import java.util.Scanner; public class Main { public static void main(String[] args) { new Main().run(); } void run() { FastScanner sc = new FastScanner(); int n = sc.nextInt(); long[] dp = new long[1 << n]; long[] a = new long[n]; for (int i = 0; i < n; ++i) a[i] = sc.nextLong(); Arrays.sort(a); for (int s = 0; s < 1 << n; ++s) { for (int i = 0; i < n; ++i) { for (int j = i + 1; j < n; ++j) { if ((s & (1 << i)) > 0 || (s & (1 << j)) > 0) { continue; } dp[s | (1 << i) | (1 << j)] = Math.max(dp[s | (1 << i) | (1 << j)], dp[s] + (a[i] ^ a[j])); } } } System.out.println(dp[(1 << n) - 1]); } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; } else { ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1; } private boolean isPrintableChar(int c) { return 33 <= c && c <= 126; } public boolean hasNext() { while (hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte(); } public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while (isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while (true) { if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; } else if (b == -1 || !isPrintableChar(b)) { return minus ? -n : n; } else { throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next()); } } void tr(Object... objects) { System.out.println(Arrays.deepToString(objects)); } }