結果
問題 | No.1969 XOR Equation |
ユーザー | 👑 hos.lyric |
提出日時 | 2022-06-04 10:28:23 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 158 ms / 2,000 ms |
コード長 | 3,544 bytes |
コンパイル時間 | 935 ms |
コンパイル使用メモリ | 126,020 KB |
実行使用メモリ | 13,536 KB |
最終ジャッジ日時 | 2024-06-22 15:23:42 |
合計ジャッジ時間 | 3,223 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
(要ログイン)
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 | 1 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,812 KB |
testcase_02 | AC | 1 ms
6,816 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,948 KB |
testcase_08 | AC | 1 ms
6,944 KB |
testcase_09 | AC | 39 ms
6,940 KB |
testcase_10 | AC | 42 ms
6,940 KB |
testcase_11 | AC | 48 ms
6,940 KB |
testcase_12 | AC | 47 ms
6,940 KB |
testcase_13 | AC | 48 ms
6,944 KB |
testcase_14 | AC | 34 ms
6,940 KB |
testcase_15 | AC | 21 ms
12,952 KB |
testcase_16 | AC | 21 ms
12,836 KB |
testcase_17 | AC | 21 ms
12,840 KB |
testcase_18 | AC | 21 ms
13,036 KB |
testcase_19 | AC | 22 ms
12,880 KB |
testcase_20 | AC | 36 ms
6,940 KB |
testcase_21 | AC | 20 ms
6,940 KB |
testcase_22 | AC | 23 ms
13,536 KB |
testcase_23 | AC | 38 ms
6,944 KB |
testcase_24 | AC | 22 ms
6,940 KB |
testcase_25 | AC | 17 ms
12,752 KB |
testcase_26 | AC | 16 ms
12,776 KB |
testcase_27 | AC | 20 ms
12,876 KB |
testcase_28 | AC | 21 ms
12,880 KB |
testcase_29 | AC | 20 ms
12,852 KB |
testcase_30 | AC | 22 ms
12,844 KB |
testcase_31 | AC | 21 ms
12,900 KB |
testcase_32 | AC | 22 ms
12,896 KB |
testcase_33 | AC | 20 ms
12,992 KB |
testcase_34 | AC | 21 ms
12,896 KB |
testcase_35 | AC | 158 ms
6,940 KB |
testcase_36 | AC | 15 ms
12,656 KB |
ソースコード
import std.conv, std.functional, std.range, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.bitmanip, std.complex, std.container, std.math, std.mathspecial, std.numeric, std.regex, std.typecons; import core.bitop; class EOFException : Throwable { this() { super("EOF"); } } string[] tokens; string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; } int readInt() { return readToken.to!int; } long readLong() { return readToken.to!long; } real readReal() { return readToken.to!real; } bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } } bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } } int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1; (unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; } int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); } int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); } enum E = 61; void update(ref long t, long f) { if (!~t || t > f) { t = f; } } void main() { try { for (; ; ) { const numCases = readInt; foreach (caseId; 0 .. numCases) { const N = readInt; const Y = readLong; auto A = new long[N]; foreach (i; 0 .. N) { A[i] = readLong; } A.sort; // sort mod 2^e auto bss = new long[][](E + 1, N); bss[E][] = A[]; auto mids = new int[E]; foreach_reverse (e; 0 .. E) { const mask = (1L << e) - 1; int mid; for (; mid < N && !(bss[e + 1][mid] >> e & 1); ++mid) {} mids[e] = mid; int i = 0, j = mid, k = 0; for (; i < mid && j < N; ) { bss[e][k++] = ((bss[e + 1][i] & mask) <= (bss[e + 1][j] & mask)) ? bss[e + 1][i++] : bss[e + 1][j++]; } for (; i < mid; ) bss[e][k++] = bss[e + 1][i++]; for (; j < N; ) bss[e][k++] = bss[e + 1][j++]; assert(k == N); debug { writeln(e, ": ", bss[e]); } } debug { writeln("mids = ", mids); } // dp[e][k]: Determined mod 2^e, c carries auto dp = new long[][](E + 1, N + 1); foreach (e; 0 .. E + 1) { dp[e][] = -1; } dp[0][0] = 0; foreach (e; 0 .. E) { int num0 = mids[e]; int num1 = N - mids[e]; int num2 = 0; foreach (c; 0 .. N + 1) { if (c > 0) { if (bss[e][N - c] >> e & 1) { --num1; ++num2; } else { --num0; ++num1; } } if (~dp[e][c]) { debug { if (e < 10) { writeln(e, " ", c, ": ", dp[e][c], "; ", num0, " ", num1, " ", num2); } } // 0 if ((num1 & 1) == (Y >> e & 1)) { update(dp[e + 1][num2], dp[e][c]); } // 1 if (((num0 + num2) & 1) == (Y >> e & 1)) { update(dp[e + 1][num1 + num2], dp[e][c] | 1L << e); } } } } writeln(dp[E][0]); } } } catch (EOFException e) { } }