結果
問題 | No.2242 Cities and Teleporters |
ユーザー | 👑 hos.lyric |
提出日時 | 2023-03-10 22:18:54 |
言語 | D (dmd 2.106.1) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,009 bytes |
コンパイル時間 | 1,102 ms |
コンパイル使用メモリ | 125,696 KB |
実行使用メモリ | 26,600 KB |
最終ジャッジ日時 | 2024-06-22 17:38:00 |
合計ジャッジ時間 | 12,267 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 1 ms
6,816 KB |
testcase_01 | AC | 3 ms
6,944 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | AC | 452 ms
25,952 KB |
testcase_09 | AC | 396 ms
25,980 KB |
testcase_10 | AC | 342 ms
26,016 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 397 ms
25,952 KB |
testcase_17 | AC | 422 ms
25,960 KB |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
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; } 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 = 18; void main() { try { for (; ; ) { const N = readInt; auto H = new int[N]; foreach (i; 0 .. N) H[i] = readInt; auto T = new int[N]; foreach (i; 0 .. N) T[i] = readInt; const Q = readInt; auto A = new int[Q]; auto B = new int[Q]; foreach (q; 0 .. Q) { A[q] = readInt - 1; B[q] = readInt - 1; } auto js = iota(N).array; js.sort!((i, j) => (H[i] < H[j])); H = iota(N).map!(u => H[js[u]]).array; T = iota(N).map!(u => T[js[u]]).array; auto tr = new int[N]; foreach (u; 0 .. N) { tr[js[u]] = u; } foreach (q; 0 .. Q) { A[q] = tr[A[q]]; B[q] = tr[B[q]]; } debug { writeln("H = ", H); writeln("T = ", T); } auto once = new int[N]; foreach (u; 0 .. N) { once[u] = H.upperBound(T[u]) - 1; // chmax(once[u], u); } auto mxs = once.dup; foreach (u; 1 .. N) { chmax(mxs[u], mxs[u - 1]); } debug { writeln("once = ", once); writeln("mxs = ", mxs); } auto f = new int[][](E, N); f[0][] = mxs[]; foreach (e; 0 .. E - 1) { foreach (u; 0 .. N) { f[e + 1][u] = (~f[e][u]) ? f[e][f[e][u]] : -1; } } foreach (q; 0 .. Q) { int u = A[q]; int ans = 1; u = once[u]; if (~u) { if (u != B[q]) { foreach_reverse (e; 0 .. E) { if (f[e][u] < B[q]) { ans += (1 << e); u = f[e][u]; } } ans += 1; u = f[0][u]; if (u < B[q]) { ans = -1; } } } else { ans = -1; } writeln(ans); } } } catch (EOFException e) { } }