結果
| 問題 |
No.1296 OR or NOR
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-11-20 22:13:08 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,705 bytes |
| コンパイル時間 | 821 ms |
| コンパイル使用メモリ | 120,536 KB |
| 実行使用メモリ | 70,744 KB |
| 最終ジャッジ日時 | 2024-06-22 09:56:59 |
| 合計ジャッジ時間 | 23,396 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 13 WA * 20 |
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 = 60;
void main() {
try {
for (; ; ) {
const N = readInt();
auto A = new long[N];
foreach (i; 0 .. N) {
A[i] = readLong();
}
const Q = readInt();
auto B = new long[Q];
foreach (q; 0 .. Q) {
B[q] = readLong();
}
debug {
foreach (i; 0 .. N) {
// writefln("%60b %20s", A[i], A[i]);
}
auto brt = new int[Q];
brt[] = N + 1;
foreach (p; 0 .. 1 << N) {
long x;
foreach (i; 0 .. N) {
x |= A[i];
if (p & 1 << i) {
x ^= (1L << E) - 1;
}
}
// writefln("%0*b %s: %60b %20s", N, p, popcnt(p), x, x);
foreach (q; 0 .. Q) {
if (x == B[q]) {
chmin(brt[q], popcnt(p));
}
}
}
foreach (q; 0 .. Q) {
if (brt[q] > N) {
brt[q] = -1;
}
}
writeln("brt = ", brt);
}
auto prev = new int[E][N + 1];
prev[0][] = -1;
foreach (i; 0 .. N) {
prev[i + 1][] = prev[i][];
foreach (e; 0 .. E) {
if ((A[i] >> e) & 1) {
prev[i + 1][e] = i;
}
}
}
foreach (q; 0 .. Q) {
int ans;
long mask = (1L << E) - 1;
long tar = B[q];
for (int i = N; ; ) {
int jm = -1;
foreach (e; 0 .. E) {
if ((mask >> e) & 1) {
chmax(jm, prev[i][e]);
}
}
if (jm == -1) {
if (!(~tar & mask)) {
if (i == 0) {
++ans;// ans = -1;
} else {
++ans;
}
} else if (!tar) {
// OK
} else {
ans = -1;
}
break;
} else {
const force = A[jm] & mask;
debug {
// writefln("i = %s, mask = %s, tar = %s: jm = %s, force = %s", i, mask, tar, jm, force);
}
if (!(~tar & force)) {
mask &= ~force;
tar = tar & mask;
} else if (!(tar & force)) {
++ans;
mask &= ~force;
tar = ~tar & mask;
} else {
ans = -1;
break;
}
i = jm;
}
}
writeln(ans);
debug {
assert(brt[q] == ans);
}
}
}
} catch (EOFException e) {
}
}