結果
問題 | No.2010 Magical Floor |
ユーザー |
👑 |
提出日時 | 2022-07-15 22:17:27 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 42 ms / 2,000 ms |
コード長 | 2,578 bytes |
コンパイル時間 | 2,684 ms |
コンパイル使用メモリ | 164,064 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 15:48:17 |
合計ジャッジ時間 | 4,166 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 21 |
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 numCases = readInt;foreach (caseId; 0 .. numCases) {const N = readInt;const X = readReal;auto H = new real[N + 1];H[0] = 0.0L;foreach (i; 1 .. N + 1) {H[i] = readReal;}auto A = new real[N];foreach (i; 0 .. N) {A[i] = readReal;}auto Y = new real[N];foreach (i; 0 .. N) {Y[i] = H[i + 1] - H[i];}real ans = A[0] * X;foreach (k; 1 .. N) {bool ok = true;foreach (i; 0 .. k) {ok = ok && (A[i] > A[k]);}if (ok) {/*2 A[i] (x[i] / sqrt(x[i]^2 + Y[i]^2)) = 2 lamA[k] = lam*/real cost = 0.0L;real sumX = 0.0L;foreach (i; 0 .. k) {const c = A[k] / A[i];const s = sqrt(1.0L - c^^2);const x = (c / s) * Y[i];cost += 2.0L * A[i] * sqrt(x^^2 + Y[i]^^2);sumX += x;}cost += A[k] * max(X - 2 * sumX, 0.0L);debug {writeln(A[0 .. k + 1], ": ", cost, " ", sumX);}chmin(ans, cost);}}writefln("%.12f", ans);}}} catch (EOFException e) {}}