結果
問題 | No.953 席 |
ユーザー | 👑 hos.lyric |
提出日時 | 2019-12-16 02:47:42 |
言語 | D (dmd 2.105.2) |
結果 |
AC
|
実行時間 | 435 ms / 2,000 ms |
コード長 | 4,948 bytes |
コンパイル時間 | 2,082 ms |
コンパイル使用メモリ | 185,148 KB |
実行使用メモリ | 16,784 KB |
最終ジャッジ日時 | 2023-09-04 04:04:32 |
合計ジャッジ時間 | 11,715 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge15 |
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
4,376 KB |
testcase_01 | AC | 1 ms
4,380 KB |
testcase_02 | AC | 242 ms
15,556 KB |
testcase_03 | AC | 231 ms
16,484 KB |
testcase_04 | AC | 235 ms
14,812 KB |
testcase_05 | AC | 215 ms
15,012 KB |
testcase_06 | AC | 240 ms
15,080 KB |
testcase_07 | AC | 378 ms
13,536 KB |
testcase_08 | AC | 409 ms
16,396 KB |
testcase_09 | AC | 332 ms
13,296 KB |
testcase_10 | AC | 111 ms
9,208 KB |
testcase_11 | AC | 308 ms
13,792 KB |
testcase_12 | AC | 329 ms
15,100 KB |
testcase_13 | AC | 394 ms
16,152 KB |
testcase_14 | AC | 303 ms
15,712 KB |
testcase_15 | AC | 301 ms
14,972 KB |
testcase_16 | AC | 301 ms
15,292 KB |
testcase_17 | AC | 344 ms
15,824 KB |
testcase_18 | AC | 323 ms
15,964 KB |
testcase_19 | AC | 435 ms
16,784 KB |
testcase_20 | AC | 325 ms
15,100 KB |
testcase_21 | AC | 252 ms
14,400 KB |
testcase_22 | AC | 337 ms
16,240 KB |
testcase_23 | AC | 262 ms
15,236 KB |
testcase_24 | AC | 267 ms
15,088 KB |
testcase_25 | AC | 410 ms
14,996 KB |
testcase_26 | AC | 191 ms
15,844 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)); } void main() { try { for (; ; ) { const N = readInt(); const K1 = readInt(); const K2 = readInt(); const Q = readInt(); auto A = new long[Q]; auto B = new long[Q]; foreach (q; 0 .. Q) { A[q] = readLong(); B[q] = readLong(); } auto ans = new int[Q]; int toDist(int x) { const d1 = abs(x - K1); const d2 = abs(x - K2); // return (d1 <= d2) ? (3 * d1 + 1) : (3 * d2 + 2); if (d1 <= d2) { return 3 * d1 + 1; } else { return 3 * d2 + 2; } } int toPos(int d) { if (d % 3 == 1) { return K1 + (K1 - K2) * (d / 3); } else { return K2 + (K2 - K1) * (d / 3); } } debug { foreach (x; 0 .. N + 2) { writeln(x, " ", toDist(x), " ", toPos(toDist(x))); assert(x == toPos(toDist(x))); } } auto filled = new bool[N + 2]; auto setGood = new RedBlackTree!int; auto setBad = new RedBlackTree!int; foreach (x; 1 .. N + 1) { setGood.insert(toDist(x)); } alias Event = Tuple!(long, "time", int, "type", int, "id"); BinaryHeap!(Array!Event, "a > b") events; DList!int que; void updateSets(int pos) { foreach (x; pos - 2 .. pos + 2 + 1) { if (1 <= x && x <= N) { setGood.removeKey(toDist(x)); setBad.removeKey(toDist(x)); if (!filled[x]) { if (!filled[x - 1] && !filled[x + 1]) { setGood.insert(toDist(x)); } else { setBad.insert(toDist(x)); } } } } debug { writeln(" ", filled); writeln(" ", setGood, " ", setBad); } } void seat(long time, int id, int pos) { debug { writefln("seat time = %s, id = %s, pos = %s", time, id, pos); } events.insert(Event(time + B[id], -1, id)); ans[id] = pos; filled[pos] = true; updateSets(pos); } void leave(int id) { debug { writefln("leave id = %s", id); } const pos = ans[id]; filled[pos] = false; updateSets(pos); } foreach (q; 0 .. Q) { events.insert(Event(A[q], +1, q)); } for (; !events.empty; ) { const e = events.front; events.removeFront; debug { writeln("e = ", e); } if (e.type > 0) { if (!setGood.empty || !setBad.empty) { assert(que.empty); // const pos = toPos(!setGood.empty ? setGood.front : setBad.front); int pos; if (!setGood.empty) { pos = toPos(setGood.front); } else { pos = toPos(setBad.front); } assert(!filled[pos]); seat(e.time, e.id, pos); } else { que ~= e.id; } } else { leave(e.id); if (events.empty || tuple(e.time, e.type) < tuple(events.front.time, events.front.type)) { for (; !que.empty && (!setGood.empty || !setBad.empty); ) { // const pos = toPos(!setGood.empty ? setGood.front : setBad.front); int pos; if (!setGood.empty) { pos = toPos(setGood.front); } else { pos = toPos(setBad.front); } seat(e.time, que.front, pos); que.removeFront; } } } } assert(que.empty); foreach (q; 0 .. Q) { writeln(ans[q]); } } } catch (EOFException e) { } }