結果
問題 | No.417 チューリップバブル |
ユーザー | 37zigen |
提出日時 | 2016-08-11 16:10:27 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,595 bytes |
コンパイル時間 | 4,604 ms |
コンパイル使用メモリ | 83,568 KB |
実行使用メモリ | 72,712 KB |
最終ジャッジ日時 | 2024-11-07 17:45:48 |
合計ジャッジ時間 | 19,565 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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 | 58 ms
55,568 KB |
testcase_01 | AC | 60 ms
49,848 KB |
testcase_02 | AC | 58 ms
49,968 KB |
testcase_03 | AC | 56 ms
37,100 KB |
testcase_04 | AC | 55 ms
36,880 KB |
testcase_05 | AC | 56 ms
37,100 KB |
testcase_06 | AC | 56 ms
36,968 KB |
testcase_07 | AC | 56 ms
37,064 KB |
testcase_08 | AC | 60 ms
36,752 KB |
testcase_09 | AC | 57 ms
36,880 KB |
testcase_10 | AC | 58 ms
37,076 KB |
testcase_11 | AC | 60 ms
36,768 KB |
testcase_12 | AC | 60 ms
37,212 KB |
testcase_13 | AC | 61 ms
37,236 KB |
testcase_14 | AC | 98 ms
38,672 KB |
testcase_15 | AC | 77 ms
37,528 KB |
testcase_16 | AC | 68 ms
37,592 KB |
testcase_17 | TLE | - |
testcase_18 | AC | 232 ms
44,532 KB |
testcase_19 | AC | 227 ms
45,036 KB |
testcase_20 | AC | 403 ms
46,460 KB |
testcase_21 | AC | 240 ms
44,244 KB |
testcase_22 | AC | 297 ms
45,856 KB |
testcase_23 | AC | 187 ms
43,572 KB |
testcase_24 | AC | 57 ms
36,984 KB |
testcase_25 | AC | 582 ms
49,020 KB |
testcase_26 | AC | 95 ms
39,040 KB |
testcase_27 | AC | 146 ms
42,024 KB |
testcase_28 | AC | 1,774 ms
51,360 KB |
testcase_29 | AC | 207 ms
45,084 KB |
testcase_30 | AC | 108 ms
40,064 KB |
testcase_31 | AC | 263 ms
45,380 KB |
testcase_32 | AC | 55 ms
36,848 KB |
testcase_33 | AC | 54 ms
36,740 KB |
testcase_34 | AC | 56 ms
37,100 KB |
testcase_35 | TLE | - |
testcase_36 | TLE | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
ソースコード
import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; public class チューリップバブル { static InputStream is; static PrintWriter out; static String INPUT = ""; static double opt;// 単位時間あたりにゲットできる最大チューリップ数 static long total_time; void solver() { int n = ni();// 村の数 int m = ni();// 残り時間 total_time = m; long[] u = new long[n]; for (int i = 0; i < n; i++) { u[i] = nl();// 税収 } ArrayList<Edge>[] e = new ArrayList[n]; for (int i = 0; i < n; i++) { e[i] = new ArrayList<>(); } opt = -1; for (int i = 0; i < n - 1; i++) { int a = ni(); int b = ni(); int c = ni(); e[a].add(new Edge(c, a, b)); e[b].add(new Edge(c, b, a)); opt = Math.max(opt, ((double) u[i]) / ((double) c)); } ArrayList<State> list = dfs(-1, 0, e, u, m, 0, 0); list.sort(new Comparator<State>() { @Override public int compare(State s1, State s2) { return -Long.compare(s1.u, s2.u); } }); out.println(list.get(0).u); } ArrayList<State> dfs(int p, int cur, ArrayList<Edge>[] e, long[] u, int m, int depth, long total) { ArrayList<ArrayList<State>> tmpList = new ArrayList<>(); for (Edge v : e[cur]) { if (v.to != p) { ArrayList<State> d = dfs(cur, v.to, e, u, m - 2 * v.time, depth + 1, u[cur] + total); ArrayList<State> tmpList2 = new ArrayList<>(); for (State tmp : d) { tmp.t += 2 * v.time; tmp.u += u[cur]; if (m >= tmp.t) { tmpList2.add(tmp); } } tmpList.add(tmpList2); } } ArrayList<State> ret = new ArrayList<>(); for (ArrayList<State> lst : tmpList) { int n = ret.size(); for (State s : lst) { for (int j = 0; j < n; j++) { State tmp = new チューリップバブル().new State(s.u + ret.get(j).u - u[cur], s.t + ret.get(j).t); if (m >= tmp.t) { ret.add(tmp); } } } ret.addAll(lst); ret.sort(new Comparator<State>() { @Override public int compare(State s1, State s2) { return Long.compare(s1.t, s2.t); } }); for (int i = 0; i < ret.size() - 1; i++) { while (i + 1 < ret.size() && ret.get(i).u > ret.get(i + 1).u) { ret.remove(i + 1); } } } for (int i = 0; i < ret.size() - 1; i++) { if (ret.size() >= 2 && ret.get(0).u + opt * (total_time - ret.get(0).t) < ret.get(ret.size() - 1).u + total) { ret.remove(0); } } ret.add(new チューリップバブル().new State(u[cur], 0)); return ret; } static class Edge { int time; int from; int to; Edge(int time, int from, int to) { this.time = time; this.from = from; this.to = to; } } class State { long u; int t; State(long u, int t) { this.u = u; this.t = t; } } public static void main(String[] args) throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long t = System.currentTimeMillis(); new チューリップバブル().solver(); System.err.println(System.currentTimeMillis() - t); out.flush(); } static long nl() { try { long num = 0; boolean minus = false; while ((num = is.read()) != -1 && !((num >= '0' && num <= '9') || num == '-')) ; if (num == '-') { num = 0; minus = true; } else { num -= '0'; } while (true) { int b = is.read(); if (b >= '0' && b <= '9') { num = num * 10 + (b - '0'); } else { return minus ? -num : num; } } } catch (IOException e) { } return -1; } static char nc() { try { int b = skip(); if (b == -1) return 0; return (char) b; } catch (IOException e) { } return 0; } static double nd() { try { return Double.parseDouble(ns()); } catch (Exception e) { } return 0; } static String ns() { try { int b = skip(); StringBuilder sb = new StringBuilder(); if (b == -1) return ""; sb.append((char) b); while (true) { b = is.read(); if (b == -1) return sb.toString(); if (b <= ' ') return sb.toString(); sb.append((char) b); } } catch (IOException e) { } return ""; } public static char[] ns(int n) { char[] buf = new char[n]; try { int b = skip(), p = 0; if (b == -1) return null; buf[p++] = (char) b; while (p < n) { b = is.read(); if (b == -1 || b <= ' ') break; buf[p++] = (char) b; } return Arrays.copyOf(buf, p); } catch (IOException e) { } return null; } public static byte[] nse(int n) { byte[] buf = new byte[n]; try { int b = skip(); if (b == -1) return null; is.read(buf); return buf; } catch (IOException e) { } return null; } static int skip() throws IOException { int b; while ((b = is.read()) != -1 && !(b >= 33 && b <= 126)) ; return b; } static boolean eof() { try { is.mark(1000); int b = skip(); is.reset(); return b == -1; } catch (IOException e) { return true; } } static int ni() { try { int num = 0; boolean minus = false; while ((num = is.read()) != -1 && !((num >= '0' && num <= '9') || num == '-')) ; if (num == '-') { num = 0; minus = true; } else { num -= '0'; } while (true) { int b = is.read(); if (b >= '0' && b <= '9') { num = num * 10 + (b - '0'); } else { return minus ? -num : num; } } } catch (IOException e) { } return -1; } }