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 | 2021-09-29 09:53:16 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 3,839 bytes |
| コンパイル時間 | 16,552 ms |
| コンパイル使用メモリ | 398,928 KB |
| 実行使用メモリ | 34,944 KB |
| 最終ジャッジ日時 | 2024-07-16 07:41:59 |
| 合計ジャッジ時間 | 20,728 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 12 RE * 14 |
ソースコード
#[allow(unused_imports)]
use std::cmp::*;
#[allow(unused_imports)]
use std::collections::*;
use std::io::{Write, BufWriter};
// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
($($r:tt)*) => {
let stdin = std::io::stdin();
let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
let mut next = move || -> String{
bytes.by_ref().map(|r|r.unwrap() as char)
.skip_while(|c|c.is_whitespace())
.take_while(|c|!c.is_whitespace())
.collect()
};
input_inner!{next, $($r)*}
};
}
macro_rules! input_inner {
($next:expr) => {};
($next:expr,) => {};
($next:expr, $var:ident : $t:tt $($r:tt)*) => {
let $var = read_value!($next, $t);
input_inner!{$next $($r)*}
};
}
macro_rules! read_value {
($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) };
($next:expr, [ $t:tt ; $len:expr ]) => {
(0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
};
($next:expr, chars) => {
read_value!($next, String).chars().collect::<Vec<char>>()
};
($next:expr, usize1) => (read_value!($next, usize) - 1);
($next:expr, [ $t:tt ]) => {{
let len = read_value!($next, usize);
read_value!($next, [$t; len])
}};
($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
}
trait Change { fn chmax(&mut self, x: Self); fn chmin(&mut self, x: Self); }
impl<T: PartialOrd> Change for T {
fn chmax(&mut self, x: T) { if *self < x { *self = x; } }
fn chmin(&mut self, x: T) { if *self > x { *self = x; } }
}
struct Data {
cww: Vec<i64>,
w: Vec<i64>,
c: Vec<i64>,
cw: Vec<i64>,
}
impl Data {
fn with(s: &[char]) -> Self {
let n = s.len();
let mut cww = vec![0; n + 1];
let mut c = vec![0; n + 1];
let mut w = vec![0; n + 1];
let mut cw = vec![0; n + 1];
for i in 0..n {
cww[i + 1] = cww[i];
c[i + 1] = c[i];
w[i + 1] = w[i];
cw[i + 1] = cw[i];
if s[i] == 'c' {
c[i + 1] += 1;
} else {
w[i + 1] += 1;
cw[i + 1] += c[i];
cww[i + 1] += cw[i];
}
}
Data {
cww: cww,
w: w,
c: c,
cw: cw,
}
}
// Counts cww.
fn query(&self, a: usize, b: usize) -> i64 {
let mut ans = self.cww[b] - self.cww[a];
let rw = self.w[b] - self.w[a];
ans -= self.c[a] * rw * (rw - 1) / 2;
ans -= self.cw[a] * rw;
ans
}
}
fn main() {
let out = std::io::stdout();
let mut out = BufWriter::new(out.lock());
macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););}
input! {
h: usize, w: usize,
s: [chars; h],
q: usize,
abcd: [(usize1, usize1, usize, usize); q],
}
let mut row = vec![];
let mut row_rev = vec![];
for i in 0..h {
row.push(Data::with(&s[i]));
let mut tmp = s[i].to_vec();
tmp.reverse();
row_rev.push(Data::with(&tmp));
}
let mut col = vec![];
let mut col_rev = vec![];
for i in 0..w {
let mut tmp = vec!['+'; h];
for j in 0..h {
tmp[j] = s[j][i];
}
col.push(Data::with(&tmp));
tmp.reverse();
col_rev.push(Data::with(&tmp));
}
for (a, b, c, d) in abcd {
let mut ans = 0;
for i in a..c {
ans += row[i].query(b, d);
ans += row_rev[i].query(w - d, w - b);
}
for i in b..d {
ans += col[i].query(a, c);
ans += col_rev[i].query(w - c, w - a);
}
puts!("{}\n", ans);
}
}