結果
問題 | No.2955 Pizza Delivery Plan |
ユーザー |
👑 |
提出日時 | 2024-11-08 22:00:19 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 241 ms / 2,000 ms |
コード長 | 2,172 bytes |
コンパイル時間 | 2,964 ms |
コンパイル使用メモリ | 160,256 KB |
実行使用メモリ | 70,656 KB |
最終ジャッジ日時 | 2024-11-08 22:00:42 |
合計ジャッジ時間 | 7,554 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 28 |
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; }string COLOR(string s = "") { return "\x1b[" ~ s ~ "m"; }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 K = readInt;auto X = new real[N + 1];auto Y = new real[N + 1];foreach (u; 0 .. N) {X[u] = readLong;Y[u] = readLong;}X[N] = Y[N] = 0;auto D = new real[][](N + 1, N + 1);foreach (u; 0 .. N + 1) foreach (v; 0 .. N + 1) {D[u][v] = sqrt((X[u] - X[v])^^2 + (Y[u] - Y[v])^^2);}auto dp = new real[][][](1 << N, N + 1, K + 1);foreach (p; 0 .. 1 << N) foreach (u; 0 .. N + 1) dp[p][u][] = real.infinity;dp[0][N][K] = 0;foreach (p; 0 .. 1 << N) foreach (u; 0 .. N + 1) foreach (k; 0 .. K + 1) if (dp[p][u][k] < real.infinity) {if (k) {foreach (v; 0 .. N) if (!(p & 1 << v)) chmin(dp[p | 1 << v][v][k - 1], dp[p][u][k] + D[u][v]);}chmin(dp[p][N][K], dp[p][u][k] + D[u][N]);}writefln("%.12f", dp[$ - 1][N][K]);}} catch (EOFException e) {}}