結果

問題 No.2263 Perms
ユーザー 👑 hos.lyric
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
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 39
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

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) {
}
}
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