結果
問題 | No.417 チューリップバブル |
ユーザー | Grenache |
提出日時 | 2017-01-08 19:23:02 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 655 ms / 2,000 ms |
コード長 | 5,264 bytes |
コンパイル時間 | 7,618 ms |
コンパイル使用メモリ | 78,604 KB |
実行使用メモリ | 57,468 KB |
最終ジャッジ日時 | 2023-08-22 17:46:11 |
合計ジャッジ時間 | 17,388 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge15 |
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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 | 43 ms
49,384 KB |
testcase_01 | AC | 43 ms
49,592 KB |
testcase_02 | AC | 43 ms
49,440 KB |
testcase_03 | AC | 43 ms
49,464 KB |
testcase_04 | AC | 42 ms
49,688 KB |
testcase_05 | AC | 41 ms
49,428 KB |
testcase_06 | AC | 46 ms
49,432 KB |
testcase_07 | AC | 45 ms
49,312 KB |
testcase_08 | AC | 96 ms
53,812 KB |
testcase_09 | AC | 168 ms
55,292 KB |
testcase_10 | AC | 163 ms
55,424 KB |
testcase_11 | AC | 211 ms
55,024 KB |
testcase_12 | AC | 204 ms
54,992 KB |
testcase_13 | AC | 188 ms
55,364 KB |
testcase_14 | AC | 252 ms
55,492 KB |
testcase_15 | AC | 157 ms
55,588 KB |
testcase_16 | AC | 157 ms
55,384 KB |
testcase_17 | AC | 211 ms
55,444 KB |
testcase_18 | AC | 212 ms
55,612 KB |
testcase_19 | AC | 211 ms
55,504 KB |
testcase_20 | AC | 386 ms
55,828 KB |
testcase_21 | AC | 333 ms
55,756 KB |
testcase_22 | AC | 382 ms
55,812 KB |
testcase_23 | AC | 332 ms
55,608 KB |
testcase_24 | AC | 48 ms
49,276 KB |
testcase_25 | AC | 339 ms
55,144 KB |
testcase_26 | AC | 133 ms
54,004 KB |
testcase_27 | AC | 321 ms
55,340 KB |
testcase_28 | AC | 406 ms
55,644 KB |
testcase_29 | AC | 333 ms
55,252 KB |
testcase_30 | AC | 323 ms
55,592 KB |
testcase_31 | AC | 326 ms
55,148 KB |
testcase_32 | AC | 43 ms
49,444 KB |
testcase_33 | AC | 119 ms
53,796 KB |
testcase_34 | AC | 191 ms
55,168 KB |
testcase_35 | AC | 501 ms
57,452 KB |
testcase_36 | AC | 538 ms
57,180 KB |
testcase_37 | AC | 502 ms
57,204 KB |
testcase_38 | AC | 655 ms
55,936 KB |
testcase_39 | AC | 505 ms
57,468 KB |
ソースコード
import java.io.*; import java.util.*; public class Main_yukicoder417 { private static Scanner sc; private static Printer pr; private static void solve() { int n = sc.nextInt(); int m = sc.nextInt(); int[] u = new int[n]; for (int i = 0; i < n; i++) { u[i] = sc.nextInt(); } List<List<Edge>> edges = new ArrayList<>(); for (int i = 0; i < n; i++) { edges.add(new ArrayList<>()); } for (int i = 0; i < n - 1; i++) { int a = sc.nextInt(); int b = sc.nextInt(); int c = sc.nextInt(); edges.get(a).add(new Edge(a, b, c)); edges.get(b).add(new Edge(b, a, c)); } boolean[] used = new boolean[n]; int[] p = new int[n]; Arrays.fill(p, -1); p[0] = 0; int[][] dp = new int[n][m + 1]; Deque<Integer> st = new ArrayDeque<>(); st.push(0); while (!st.isEmpty()) { int e = st.peek(); if (used[e]) { st.pop(); Arrays.fill(dp[e], u[e]); for (Edge next : edges.get(e)) { if (next.v != p[e]) { for (int i = m; i - next.w * 2 >= 0; i--) { for (int j = 0; i - next.w * 2 - j >= 0; j++) { dp[e][i] = Math.max(dp[e][i], dp[e][i - next.w * 2 - j] + dp[next.v][j]); } } } } continue; } for (Edge next : edges.get(e)) { if (next.v != p[e]) { st.push(next.v); p[next.v] = e; } } used[e] = true; } pr.println(dp[0][m]); } private static class Edge { @SuppressWarnings("unused") int u; // from int v; // to int w; // cost Edge(int u, int v, int w) { this.u = u; this.v = v; this.w = w; } } // --------------------------------------------------- public static void main(String[] args) { sc = new Scanner(System.in); pr = new Printer(System.out); solve(); pr.close(); sc.close(); } @SuppressWarnings("unused") private static class Scanner { BufferedReader br; Scanner (InputStream in) { br = new BufferedReader(new InputStreamReader(in)); } private boolean isPrintable(int ch) { return ch >= '!' && ch <= '~'; } private boolean isCRLF(int ch) { return ch == '\n' || ch == '\r' || ch == -1; } private int nextPrintable() { try { int ch; while (!isPrintable(ch = br.read())) { if (ch == -1) { throw new NoSuchElementException(); } } return ch; } catch (IOException e) { throw new NoSuchElementException(); } } String next() { try { int ch = nextPrintable(); StringBuilder sb = new StringBuilder(); do { sb.appendCodePoint(ch); } while (isPrintable(ch = br.read())); return sb.toString(); } catch (IOException e) { throw new NoSuchElementException(); } } int nextInt() { try { // parseInt from Integer.parseInt() boolean negative = false; int res = 0; int limit = -Integer.MAX_VALUE; int radix = 10; int fc = nextPrintable(); if (fc < '0') { if (fc == '-') { negative = true; limit = Integer.MIN_VALUE; } else if (fc != '+') { throw new NumberFormatException(); } fc = br.read(); } int multmin = limit / radix; int ch = fc; do { int digit = ch - '0'; if (digit < 0 || digit >= radix) { throw new NumberFormatException(); } if (res < multmin) { throw new NumberFormatException(); } res *= radix; if (res < limit + digit) { throw new NumberFormatException(); } res -= digit; } while (isPrintable(ch = br.read())); return negative ? res : -res; } catch (IOException e) { throw new NoSuchElementException(); } } long nextLong() { try { // parseLong from Long.parseLong() boolean negative = false; long res = 0; long limit = -Long.MAX_VALUE; int radix = 10; int fc = nextPrintable(); if (fc < '0') { if (fc == '-') { negative = true; limit = Long.MIN_VALUE; } else if (fc != '+') { throw new NumberFormatException(); } fc = br.read(); } long multmin = limit / radix; int ch = fc; do { int digit = ch - '0'; if (digit < 0 || digit >= radix) { throw new NumberFormatException(); } if (res < multmin) { throw new NumberFormatException(); } res *= radix; if (res < limit + digit) { throw new NumberFormatException(); } res -= digit; } while (isPrintable(ch = br.read())); return negative ? res : -res; } catch (IOException e) { throw new NoSuchElementException(); } } float nextFloat() { return Float.parseFloat(next()); } double nextDouble() { return Double.parseDouble(next()); } String nextLine() { try { int ch; while (isCRLF(ch = br.read())) { if (ch == -1) { throw new NoSuchElementException(); } } StringBuilder sb = new StringBuilder(); do { sb.appendCodePoint(ch); } while (!isCRLF(ch = br.read())); return sb.toString(); } catch (IOException e) { throw new NoSuchElementException(); } } void close() { try { br.close(); } catch (IOException e) { // throw new NoSuchElementException(); } } } private static class Printer extends PrintWriter { Printer(PrintStream out) { super(out); } } }