結果
| 問題 |
No.440 2次元チワワ問題
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-06-07 14:35:13 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 665 ms / 5,000 ms |
| コード長 | 3,807 bytes |
| コンパイル時間 | 913 ms |
| コンパイル使用メモリ | 125,000 KB |
| 実行使用メモリ | 70,812 KB |
| 最終ジャッジ日時 | 2024-06-22 01:37:25 |
| 合計ジャッジ時間 | 9,015 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 26 |
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.complex, std.container, std.math, 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;
string[] S;
int Q;
int[] A, B, C, D;
void main() {
try {
for (; ; ) {
H = readInt();
W = readInt();
S = new string[H];
foreach (x; 0 .. H) {
S[x] = readToken();
}
Q = readInt();
A = new int[Q];
B = new int[Q];
C = new int[Q];
D = new int[Q];
foreach (q; 0 .. Q) {
A[q] = readInt() - 1;
B[q] = readInt() - 1;
C[q] = readInt();
D[q] = readInt();
}
auto ans = new long[Q];
foreach (dir; 0 .. 2) {
auto hor = new long[][][](H, W + 1, 3 + 1);
foreach (x; 0 .. H) {
hor[x][0][0] = 1;
foreach (y; 0 .. W) {
hor[x][y + 1][] = hor[x][y][];
foreach (k; 0 .. 3) {
if (S[x][y] == "cww"[k]) {
hor[x][y + 1][k + 1] += hor[x][y][k];
}
}
}
}
auto ver = new long[][][](H + 1, W, 3 + 1);
foreach (y; 0 .. W) {
ver[0][y][0] = 1;
foreach (x; 0 .. H) {
ver[x + 1][y][] = ver[x][y][];
foreach (k; 0 .. 3) {
if (S[x][y] == "cww"[k]) {
ver[x + 1][y][k + 1] += ver[x][y][k];
}
}
}
}
debug {
writeln("hor = ", hor);
writeln("ver = ", ver);
}
foreach (q; 0 .. Q) {
foreach (x; A[q] .. C[q]) {
const long w = (D[q] - B[q]) - (hor[x][D[q]][1] - hor[x][B[q]][1]);
long tmp = hor[x][D[q]][3];
tmp -= hor[x][B[q]][3];
tmp -= hor[x][B[q]][2] * w;
tmp -= hor[x][B[q]][1] * w * (w - 1) / 2;
debug {
writeln("x = ", x, ": ", tmp);
}
ans[q] += tmp;
}
foreach (y; B[q] .. D[q]) {
const long w = (C[q] - A[q]) - (ver[C[q]][y][1] - ver[A[q]][y][1]);
long tmp = ver[C[q]][y][3];
tmp -= ver[A[q]][y][3];
tmp -= ver[A[q]][y][2] * w;
tmp -= ver[A[q]][y][1] * w * (w - 1) / 2;
debug {
writeln("y = ", y, ": ", tmp);
}
ans[q] += tmp;
}
}
S.reverse;
foreach (x; 0 .. H) {
S[x] = S[x].dup.to!(char[]).reverse.to!string;
}
foreach (q; 0 .. Q) {
swap(A[q], C[q]);
swap(B[q], D[q]);
A[q] = H - A[q];
C[q] = H - C[q];
B[q] = W - B[q];
D[q] = W - D[q];
}
}
foreach (q; 0 .. Q) {
writeln(ans[q]);
}
}
} catch (EOFException e) {
}
}