結果
| 問題 |
No.2998 Rainbow Christmas Tree
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-12-23 17:26:34 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,175 bytes |
| コンパイル時間 | 2,714 ms |
| コンパイル使用メモリ | 123,660 KB |
| 実行使用メモリ | 25,216 KB |
| 最終ジャッジ日時 | 2024-12-23 17:27:23 |
| 合計ジャッジ時間 | 48,114 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 50 TLE * 7 |
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; }
string COLOR(string s = "") { return "\x1b[" ~ s ~ "m"; }
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)); }
void main() {
try {
for (; ; ) {
const N = readInt;
const K = readInt;
auto P = new int[][](N - 1, N);
foreach (x; 0 .. N - 1) foreach (u; 0 .. N) {
P[x][u] = readInt - 1;
}
/*
0 <- ... <- a
N-1 <- ... <- b
*/
alias Edge = Tuple!(int, "x", int, "v");
Edge[][2] paths;
foreach (h; 0 .. 2) {
paths[h] = new Edge[N];
paths[h][] = Edge(-1, -1);
}
int a = 0, b = N - 1;
paths[0][a] = paths[1][b] = Edge(-2, -2);
int r = -1;
foreach (x; 0 .. N - 1) {
if (~P[x][a]) {
paths[0][P[x][a]] = Edge(x, a);
a = P[x][a];
if (~paths[1][a].x) r = a;
} else if (~P[x][b]) {
paths[1][P[x][b]] = Edge(x, b);
b = P[x][b];
if (~paths[0][b].x) r = b;
} else {
assert(false);
}
if (~r) break;
}
debug {
writeln("paths = ", paths);
writeln("r = ", r);
}
assert(~r);
auto used = new bool[N - 1];
auto ans = new int[N];
ans[] = -1;
ans[r] = -2;
foreach (h; 0 .. 2) {
for (int u = r; ; ) {
const x = paths[h][u].x;
const v = paths[h][u].v;
debug writefln("%s %s; %s -> %s", h, x, u, v);
if (x == -2) break;
used[x] = true;
ans[v] = x;
u = v;
}
}
debug {
writeln("ans = ", ans);
writeln("used = ", used);
}
foreach (x; 0 .. N - 1) if (!used[x]) {
foreach (u; 0 .. N) if (~P[x][u]) {
if (~ans[P[x][u]] && !~ans[u]) {
used[x] = true;
ans[u] = x;
break;
}
}
assert(used[x]);
}
writeln("Yes");
foreach (u; 0 .. N) {
if (u) write(" ");
write((r != u) ? (ans[u] + 1) : 0);
}
writeln;
}
} catch (EOFException e) {
}
}