結果
問題 | No.614 壊れたキャンパス |
ユーザー | 👑 hos.lyric |
提出日時 | 2019-05-29 06:02:46 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 893 ms / 2,000 ms |
コード長 | 3,437 bytes |
コンパイル時間 | 1,142 ms |
コンパイル使用メモリ | 144,624 KB |
実行使用メモリ | 111,044 KB |
最終ジャッジ日時 | 2024-06-22 01:29:30 |
合計ジャッジ時間 | 11,226 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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
6,812 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,944 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 760 ms
71,168 KB |
testcase_09 | AC | 812 ms
61,728 KB |
testcase_10 | AC | 893 ms
111,044 KB |
testcase_11 | AC | 819 ms
64,900 KB |
testcase_12 | AC | 851 ms
64,428 KB |
testcase_13 | AC | 816 ms
64,608 KB |
testcase_14 | AC | 792 ms
71,332 KB |
testcase_15 | AC | 698 ms
94,276 KB |
testcase_16 | AC | 763 ms
75,444 KB |
testcase_17 | AC | 860 ms
106,228 KB |
testcase_18 | AC | 479 ms
48,060 KB |
testcase_19 | AC | 446 ms
51,584 KB |
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.complex, std.container, std.math, 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)); } int N, M; long K, S, T; int[] A; long[] B, C; void main() { try { for (; ; ) { N = readInt(); M = readInt(); K = readLong(); S = readLong(); T = readLong(); A = new int[M]; B = new long[M]; C = new long[M]; foreach (i; 0 .. M) { A[i] = readInt() - 1; B[i] = readLong(); C[i] = readLong(); } auto ys = new long[][N]; foreach (a; 0 .. N) { ys[a] ~= 1; ys[a] ~= K; } ys[0] ~= S; ys[N - 1] ~= T; foreach (i; 0 .. M) { ys[A[i]] ~= B[i]; ys[A[i] + 1] ~= C[i]; } auto len = new int[N]; int V; auto ids = new int[][N]; foreach (a; 0 .. N) { ys[a] = ys[a].sort.uniq.array; len[a] = cast(int)(ys[a].length); ids[a] = iota(V, V + len[a]).array; V += len[a]; } debug { writeln("len = ", len); writeln("ys = ", ys); writeln("V = ", V); writeln("ids = ", ids); } alias Edge = Tuple!(long, int); auto graph = new Edge[][V]; foreach (a; 0 .. N) { foreach (j; 0 .. len[a] - 1) { const u = ids[a][j]; const v = ids[a][j + 1]; const c = ys[a][j + 1] - ys[a][j]; graph[u] ~= Edge(c, v); graph[v] ~= Edge(c, u); } } int getId(int a, long y) { return ids[a][ys[a].lowerBound(y)]; } const src = getId(0, S); const dst = getId(N - 1, T); foreach (i; 0 .. M) { const u = getId(A[i], B[i]); const v = getId(A[i] + 1, C[i]); graph[u] ~= Edge(0, v); } BinaryHeap!(Array!Edge, "a > b") q; auto dist = new long[V]; dist[] = -1; dist[src] = 0; q.insert(Edge(0, src)); long ans = -1; for (; !q.empty; ) { const c = q.front[0]; const u = q.front[1]; q.removeFront; if (dist[u] == c) { foreach (e; graph[u]) { const cc = c + e[0]; const v = e[1]; if (dist[v] == -1 || dist[v] > cc) { dist[v] = cc; q.insert(Edge(cc, v)); } } } } writeln(dist[dst]); } } catch (EOFException e) { } }