結果
問題 | No.2286 Join Hands |
ユーザー | 👑 hos.lyric |
提出日時 | 2023-04-28 23:01:44 |
言語 | D (dmd 2.109.1) |
結果 |
RE
|
実行時間 | - |
コード長 | 3,309 bytes |
コンパイル時間 | 696 ms |
コンパイル使用メモリ | 117,972 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 17:48:34 |
合計ジャッジ時間 | 4,758 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | RE | - |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,944 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | RE | - |
testcase_07 | AC | 1 ms
6,940 KB |
testcase_08 | AC | 14 ms
6,940 KB |
testcase_09 | AC | 14 ms
6,940 KB |
testcase_10 | AC | 22 ms
6,940 KB |
testcase_11 | AC | 21 ms
6,944 KB |
testcase_12 | AC | 21 ms
6,940 KB |
testcase_13 | AC | 23 ms
6,944 KB |
testcase_14 | AC | 22 ms
6,940 KB |
testcase_15 | AC | 21 ms
6,944 KB |
testcase_16 | AC | 20 ms
6,944 KB |
testcase_17 | AC | 13 ms
6,944 KB |
testcase_18 | AC | 19 ms
6,944 KB |
testcase_19 | AC | 11 ms
6,940 KB |
testcase_20 | AC | 13 ms
6,944 KB |
testcase_21 | AC | 19 ms
6,940 KB |
testcase_22 | AC | 12 ms
6,940 KB |
testcase_23 | AC | 9 ms
6,940 KB |
testcase_24 | AC | 15 ms
6,940 KB |
testcase_25 | AC | 10 ms
6,940 KB |
testcase_26 | AC | 9 ms
6,940 KB |
testcase_27 | AC | 9 ms
6,944 KB |
testcase_28 | AC | 1 ms
6,940 KB |
testcase_29 | AC | 1 ms
6,940 KB |
testcase_30 | AC | 1 ms
6,944 KB |
testcase_31 | RE | - |
testcase_32 | RE | - |
testcase_33 | AC | 1 ms
6,940 KB |
testcase_34 | AC | 1 ms
6,944 KB |
testcase_35 | RE | - |
testcase_36 | RE | - |
testcase_37 | RE | - |
testcase_38 | AC | 1 ms
6,944 KB |
testcase_39 | AC | 2 ms
6,944 KB |
testcase_40 | RE | - |
testcase_41 | AC | 1 ms
6,940 KB |
testcase_42 | AC | 1 ms
6,940 KB |
testcase_43 | RE | - |
testcase_44 | AC | 1 ms
6,940 KB |
testcase_45 | RE | - |
testcase_46 | RE | - |
testcase_47 | AC | 14 ms
6,944 KB |
testcase_48 | AC | 14 ms
6,944 KB |
testcase_49 | AC | 13 ms
6,940 KB |
testcase_50 | RE | - |
testcase_51 | AC | 6 ms
6,940 KB |
testcase_52 | AC | 12 ms
6,944 KB |
testcase_53 | AC | 15 ms
6,944 KB |
testcase_54 | AC | 13 ms
6,940 KB |
testcase_55 | AC | 14 ms
6,940 KB |
testcase_56 | AC | 14 ms
6,940 KB |
testcase_57 | RE | - |
testcase_58 | RE | - |
testcase_59 | RE | - |
testcase_60 | AC | 13 ms
6,940 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.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; } 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)); } class MaxFlow(Capa, Capa CAPA_EPS = 0, Capa CAPA_INF = 10^^9) { int n, m; int[][] g; int[] zu; Capa[] capa; Capa tof; int[] lev, see, que; this(int n) { this.n = n; m = 0; g = new int[][n]; zu = []; capa = []; lev = new int[n]; see = new int[n]; que = new int[n]; } void ae(int u, int v, Capa w0, Capa w1 = 0) { g[u] ~= m; zu ~= v; capa ~= w0; ++m; g[v] ~= m; zu ~= u; capa ~= w1; ++m; } Capa augment(int src, int ink, Capa flo) { if (src == ink) return flo; foreach (i; g[src][see[src] .. $]) { if (capa[i] > CAPA_EPS && lev[src] < lev[zu[i]]) { Capa f = augment(zu[i], ink, min(flo, capa[i])); if (f > CAPA_EPS) { capa[i] -= f; capa[i ^ 1] += f; return f; } } ++see[src]; } return 0; } bool dinic(int src, int ink, Capa flo = CAPA_INF) { for (tof = 0; tof + CAPA_EPS < flo; ) { int qb, qe; lev[] = -1; dinicBFS: for (lev[src] = 0, que[qe++] = src; qb != qe; ) { const u = que[qb++]; foreach (i; g[u]) { const v = zu[i]; if (capa[i] > CAPA_EPS && lev[v] == -1) { lev[v] = lev[u] + 1; que[qe++] = v; if (v == ink) break dinicBFS; } } } if (lev[ink] == -1) return false; see[] = 0; for (; ; ) { Capa f = augment(src, ink, flo - tof); if (f <= CAPA_EPS) break; tof += f; } } return true; } } void main() { try { for (; ; ) { const N = readInt; const M = readInt; auto A = new int[M]; auto B = new int[M]; foreach (i; 0 .. M) { A[i] = readInt - 1; B[i] = readInt - 1; } auto mf = new MaxFlow!int(2 + N + N); foreach (u; 0 .. N) { mf.ae(0, 2 + u, 1); mf.ae(2 + N + u, 1, 1); } foreach (i; 0 .. M) { mf.ae(2 + A[i], 2 + N + B[i], 1); mf.ae(2 + B[i], 2 + N + A[i], 1); } mf.dinic(0, 1); const ans = mf.tof; debug { writeln("ans = ", ans); } writeln(2 * ans - N); if (ans == N - 1) { assert(false); } } } catch (EOFException e) { } }