結果
問題 | No.2263 Perms |
ユーザー |
👑 |
提出日時 | 2023-04-07 22:09:51 |
言語 | D (dmd 2.109.1) |
結果 |
AC
|
実行時間 | 21 ms / 2,000 ms |
コード長 | 2,777 bytes |
コンパイル時間 | 702 ms |
コンパイル使用メモリ | 119,564 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-22 17:42:59 |
合計ジャッジ時間 | 2,501 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 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; }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)); }// !!!Assume bipartite (n vertices overall)!!!class BMatch {int n;int[][] g;int[] to;bool[] vis;this(int n) {this.n = n; g = new int[][n]; to = new int[n]; vis = new bool[n];}void ae(int u, int v) {g[u] ~= v; g[v] ~= u;}bool augment(int u) {foreach (v; g[u]) if (!vis[v]) {vis[v] = true;if (to[v] == -1 || augment(to[v])) {to[u] = v; to[v] = u; return true;}}return false;}int solve() {int ret;to[] = -1;foreach (u; 0 .. n) if (to[u] == -1) {vis[] = false;if (augment(u)) ++ret;}return ret;}}void main() {try {for (; ; ) {const N = readInt;const M = readInt;auto A = new int[][](N, N);foreach (i; 0 .. N) foreach (j; 0 .. N) {A[i][j] = readInt;}auto row = new int[N];auto col = new int[N];foreach (i; 0 .. N) foreach (j; 0 .. N) {row[i] += A[i][j];col[j] += A[i][j];}if (row.count(M) == N && col.count(M) == N) {foreach (m; 0 .. M) {auto bm = new BMatch(N + N);foreach (i; 0 .. N) foreach (j; 0 .. N) if (A[i][j]) {bm.ae(i, N + j);}const res = bm.solve;assert(res == N);auto ps = new int[N];foreach (i; 0 .. N) {ps[i] = bm.to[i] - N;--A[i][ps[i]];}foreach (i; 0 .. N) {if (i) write(" ");write(ps[i] + 1);}writeln;}} else {writeln(-1);}}} catch (EOFException e) {}}