結果
| 問題 |
No.1123 Afforestation
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-07-23 19:53:44 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 1,239 ms / 2,500 ms |
| コード長 | 3,407 bytes |
| コンパイル時間 | 1,140 ms |
| コンパイル使用メモリ | 131,652 KB |
| 実行使用メモリ | 14,408 KB |
| 最終ジャッジ日時 | 2024-06-22 07:52:41 |
| 合計ジャッジ時間 | 17,359 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 * 3 |
| other | AC * 90 |
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; }
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 H, W;
int[] A, B;
int K;
int[] X, Y;
char[][] ans;
int[] prev0, prev1;
void dfs0(int x) {
foreach (y; 0 .. W) {
if (ans[x][y] == '.') {
if (prev1[y] == -1) {
prev1[y] = x;
dfs1(y);
}
}
}
}
void dfs1(int y) {
foreach (x; 0 .. H) {
if (ans[x][y] == 'o') {
if (prev0[x] == -1) {
prev0[x] = y;
dfs0(x);
}
}
}
}
bool solve() {
ans = new char[][](H, W);
foreach (x; 0 .. H) {
ans[x][] = '.';
}
auto axs = new Tuple!(int, int)[H];
foreach (x; 0 .. H) {
axs[x] = tuple(A[x], x);
}
axs.sort;
auto bs = B.dup;
foreach_reverse (ax; axs) {
const x = ax[1];
auto yss = new int[][H + 1];
foreach (y; 0 .. W) {
yss[bs[y]] ~= y;
}
int a = A[x];
foreach_reverse (b; 1 .. H + 1) {
foreach (y; yss[b]) {
if (a > 0) {
ans[x][y] = 'o';
--a;
--bs[y];
}
}
}
if (a != 0) {
return false;
}
}
if (!bs.all!"a == 0") {
return false;
}
debug {
writeln("ans = ", ans);
}
prev0 = new int[H];
prev1 = new int[W];
foreach (k; 0 .. K) {
if (ans[X[k]][Y[k]] == 'o') {
ans[X[k]][Y[k]] = 'x';
prev0[] = -1;
prev1[] = -1;
dfs0(X[k]);
if (prev1[Y[k]] == -1) {
return false;
}
for (int y = Y[k]; ; ) {
const x = prev1[y];
ans[x][y] = 'o';
if (x == X[k]) {
break;
}
y = prev0[x];
ans[x][y] = '.';
}
} else {
ans[X[k]][Y[k]] = 'x';
}
}
return true;
}
void main() {
try {
for (; ; ) {
H = readInt();
W = readInt();
A = new int[H];
foreach (x; 0 .. H) {
A[x] = readInt();
}
B = new int[W];
foreach (y; 0 .. W) {
B[y] = readInt();
}
K = readInt();
X = new int[K];
Y = new int[K];
foreach (k; 0 .. K) {
X[k] = readInt() - 1;
Y[k] = readInt() - 1;
}
const res = solve();
if (res) {
writeln("Yay!");
foreach (x; 0 .. H) {
writeln(ans[x]);
}
} else {
writeln(":(");
}
}
} catch (EOFException e) {
}
}