結果
問題 | No.2222 Respawn |
ユーザー | 👑 hos.lyric |
提出日時 | 2023-02-17 21:40:58 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 449 ms / 2,000 ms |
コード長 | 2,431 bytes |
コンパイル時間 | 3,216 ms |
コンパイル使用メモリ | 161,232 KB |
実行使用メモリ | 20,312 KB |
最終ジャッジ日時 | 2024-06-22 17:31:32 |
合計ジャッジ時間 | 5,113 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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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 | 2 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,944 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 1 ms
6,944 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 1 ms
6,940 KB |
testcase_12 | AC | 1 ms
6,944 KB |
testcase_13 | AC | 15 ms
14,872 KB |
testcase_14 | AC | 10 ms
11,572 KB |
testcase_15 | AC | 6 ms
6,944 KB |
testcase_16 | AC | 10 ms
10,288 KB |
testcase_17 | AC | 5 ms
6,940 KB |
testcase_18 | AC | 21 ms
19,524 KB |
testcase_19 | AC | 21 ms
19,824 KB |
testcase_20 | AC | 20 ms
19,464 KB |
testcase_21 | AC | 21 ms
20,144 KB |
testcase_22 | AC | 21 ms
18,896 KB |
testcase_23 | AC | 25 ms
20,084 KB |
testcase_24 | AC | 24 ms
20,312 KB |
testcase_25 | AC | 25 ms
19,232 KB |
testcase_26 | AC | 24 ms
19,668 KB |
testcase_27 | AC | 25 ms
19,468 KB |
testcase_28 | AC | 26 ms
20,304 KB |
testcase_29 | AC | 26 ms
19,536 KB |
testcase_30 | AC | 25 ms
19,984 KB |
testcase_31 | AC | 19 ms
19,792 KB |
testcase_32 | AC | 449 ms
19,916 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; } 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 PROB = 1.0L / 3.0L; void main() { try { for (; ; ) { const N = readInt; const S = readToken; auto dp = new real[N]; auto ps = new real[N]; auto qs = new real[N]; auto fs = new real[N]; auto gs = new real[N]; dp[] = 0.0L; ps[] = 0.0L; qs[] = 0.0L; fs[] = 0.0L; gs[] = 0.0L; ps[N - 1] = 1.0L; foreach_reverse (i; 0 .. N - 1) if (S[i] == '.') { foreach (di; 1 .. 2 + 1) { if (i + di < N && S[i + di] == '.') { ps[i] += PROB * ps[i + di]; qs[i] += PROB * qs[i + di]; fs[i] += PROB * (ps[i + di] + fs[i + di]); gs[i] += PROB * (qs[i + di] + gs[i + di]); } else { qs[i] += PROB * 1.0L; gs[i] += PROB * 1.0L; } } debug { writeln(i, ": ", ps[i], " ", fs[i], " ", gs[i], " -> ", dp[i]); } dp[i] = (fs[i] + gs[i] + PROB * 1.0L) / ps[i]; ps[i] += PROB * 1.0L; fs[i] += PROB * (1.0L + dp[i]); } debug { writeln("dp = ", dp); writeln("ps = ", ps); writeln("qs = ", qs); writeln("fs = ", fs); writeln("gs = ", gs); } writefln("%.12f", dp[0]); } } catch (EOFException e) { } }