結果
問題 | No.1308 ジャンプビーコン |
ユーザー | 👑 hos.lyric |
提出日時 | 2020-12-05 01:18:53 |
言語 | D (dmd 2.106.1) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,274 bytes |
コンパイル時間 | 1,020 ms |
コンパイル使用メモリ | 142,012 KB |
実行使用メモリ | 253,608 KB |
最終ジャッジ日時 | 2024-06-22 10:16:00 |
合計ジャッジ時間 | 8,332 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 1 ms
253,608 KB |
testcase_01 | AC | 1 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 5 ms
6,944 KB |
testcase_09 | AC | 5 ms
6,944 KB |
testcase_10 | AC | 5 ms
6,940 KB |
testcase_11 | AC | 6 ms
6,944 KB |
testcase_12 | AC | 6 ms
6,940 KB |
testcase_13 | AC | 314 ms
20,076 KB |
testcase_14 | AC | 311 ms
19,740 KB |
testcase_15 | AC | 322 ms
20,760 KB |
testcase_16 | AC | 312 ms
20,512 KB |
testcase_17 | AC | 299 ms
19,896 KB |
testcase_18 | TLE | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
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)); } enum E = 13; enum INF = 10L^^18; int N, Q; long C; int[] A, B; long[] L; int[] X; int[][] G; void dfs(long[] dist, int u, int p, long d) { dist[u] = d; foreach (i; G[u]) { const v = A[i] ^ B[i] ^ u; if (v != p) { dfs(dist, v, u, d + L[i]); } } } long[] shortest(long[] ini) { alias Node = Tuple!(long, "c", int, "u"); BinaryHeap!(Array!Node, "a > b") que; auto ds = ini.dup; foreach (u; 0 .. N) { que.insert(Node(ds[u], u)); } for (; !que.empty; ) { const c = que.front.c; const u = que.front.u; que.removeFront; if (ds[u] == c) { foreach (i; G[u]) { const v = A[i] ^ B[i] ^ u; const cc = c + L[i]; if (chmin(ds[v], cc)) { que.insert(Node(cc, v)); } } } } return ds; } void main() { try { for (; ; ) { N = readInt(); Q = readInt(); C = readLong(); A = new int[N - 1]; B = new int[N - 1]; L = new long[N - 1]; foreach (i; 0 .. N - 1) { A[i] = readInt() - 1; B[i] = readInt() - 1; L[i] = readLong(); } X = new int[Q]; foreach (q; 0 .. Q) { X[q] = readInt() - 1; } G = new int[][N]; foreach (i; 0 .. N - 1) { G[A[i]] ~= i; G[B[i]] ~= i; } auto dist = new long[][](N, N); foreach (u; 0 .. N) { dfs(dist[u], u, -1, 0); } auto dp = new long[][](Q, N); foreach (q; 0 .. Q) { dp[q][] = INF; } dp[0][X[0]] = 0; foreach (q; 0 .. Q - 1) { foreach (u; 0 .. N) { chmin(dp[q + 1][u], dp[q][u] + dist[X[q]][X[q + 1]]); } auto ini = dp[q].dup; ini[] += C; chmin(ini[X[q]], dp[q].minElement); const res = shortest(ini); foreach (u; 0 .. N) { chmin(dp[q + 1][u], res[u] + dist[u][X[q + 1]]); } } debug { foreach (q; 0 .. Q) { writeln(dp[q]); } } const ans = dp[Q - 1].minElement; writeln(ans); } } catch (EOFException e) { } }