結果
問題 | No.2456 Stamp Art |
ユーザー | haihamabossu |
提出日時 | 2023-09-02 00:29:16 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 260 ms / 5,000 ms |
コード長 | 3,170 bytes |
コンパイル時間 | 14,570 ms |
コンパイル使用メモリ | 382,796 KB |
実行使用メモリ | 49,152 KB |
最終ジャッジ日時 | 2024-06-11 18:10:33 |
合計ジャッジ時間 | 18,715 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,248 KB |
testcase_03 | AC | 217 ms
49,024 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 244 ms
49,024 KB |
testcase_07 | AC | 147 ms
49,024 KB |
testcase_08 | AC | 68 ms
49,024 KB |
testcase_09 | AC | 179 ms
49,152 KB |
testcase_10 | AC | 155 ms
49,024 KB |
testcase_11 | AC | 206 ms
49,024 KB |
testcase_12 | AC | 72 ms
49,024 KB |
testcase_13 | AC | 260 ms
49,152 KB |
testcase_14 | AC | 132 ms
49,024 KB |
testcase_15 | AC | 190 ms
49,024 KB |
testcase_16 | AC | 120 ms
25,472 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 1 ms
5,376 KB |
testcase_19 | AC | 122 ms
33,152 KB |
testcase_20 | AC | 156 ms
49,152 KB |
testcase_21 | AC | 195 ms
44,544 KB |
testcase_22 | AC | 209 ms
49,024 KB |
testcase_23 | AC | 8 ms
5,376 KB |
testcase_24 | AC | 14 ms
6,016 KB |
testcase_25 | AC | 1 ms
5,376 KB |
ソースコード
pub mod binary_search { type T = usize; pub fn binary_search(mut ok: T, mut ng: T, f: impl Fn(T) -> bool) -> T { let cont = |ok: T, ng: T| { let l = ok.min(ng); let r = ok.max(ng); l + 1 < r }; while cont(ok, ng) { let x = (ok + ng) / 2; if f(x) { ok = x; } else { ng = x; } } ok } } pub mod scanner { pub struct Scanner { buf: Vec<String>, } impl Scanner { pub fn new() -> Self { Self { buf: vec![] } } pub fn new_from(source: &str) -> Self { let source = String::from(source); let buf = Self::split(source); Self { buf } } pub fn next<T: std::str::FromStr>(&mut self) -> T { loop { if let Some(x) = self.buf.pop() { return x.parse().ok().expect(""); } let mut source = String::new(); std::io::stdin().read_line(&mut source).expect(""); self.buf = Self::split(source); } } fn split(source: String) -> Vec<String> { source .split_whitespace() .rev() .map(String::from) .collect::<Vec<_>>() } } } use crate::{binary_search::binary_search, scanner::Scanner}; use std::io::Write; fn main() { let mut scanner = Scanner::new(); let out = std::io::stdout(); let mut out = std::io::BufWriter::new(out.lock()); let t: usize = 1; for _ in 0..t { solve(&mut scanner, &mut out); } } fn solve(scanner: &mut Scanner, out: &mut std::io::BufWriter<std::io::StdoutLock>) { let h: usize = scanner.next(); let w: usize = scanner.next(); let s: Vec<Vec<char>> = (0..h) .map(|_| scanner.next::<String>().chars().map(|c| c).collect()) .collect(); let mut sum = vec![vec![0; w + 1]; h + 1]; for i in 1..=h { for j in 1..=w { sum[i][j] = sum[i - 1][j] + sum[i][j - 1] - sum[i - 1][j - 1] + if s[i - 1][j - 1] == '#' { 1 } else { 0 }; } } let ans = binary_search(1, h.min(w) + 1, |k| { let mut paint = vec![0isize; w]; for i in 0..h { let mut now = vec![0; w + 1]; if i + k <= h { let i2 = i + k; for j in 0..w - k + 1 { let j2 = j + k; let count = sum[i2][j2] - sum[i][j2] - sum[i2][j] + sum[i][j]; if count == k * k { now[j] += 1; now[j2] -= 1; } } } for j in 0..w { if now[j] > 0 { paint[j] = k as isize; } if s[i][j] == '#' && paint[j] <= 0 { return false; } now[j + 1] += now[j]; paint[j] -= 1; } } true }); writeln!(out, "{}", ans).unwrap(); }