結果
| 問題 |
No.506 限られたジャパリまん
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2017-10-15 08:47:48 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 468 ms / 2,000 ms |
| コード長 | 3,234 bytes |
| コンパイル時間 | 12,760 ms |
| コンパイル使用メモリ | 378,692 KB |
| 実行使用メモリ | 5,376 KB |
| 最終ジャッジ日時 | 2024-06-28 04:21:26 |
| 合計ジャッジ時間 | 16,389 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 25 |
ソースコード
#[allow(unused_imports)]
use std::cmp::{max, min};
#[allow(unused_imports)]
use std::collections::{HashMap, HashSet};
mod util {
use std::io::stdin;
use std::str::FromStr;
use std::fmt::Debug;
#[allow(dead_code)]
pub fn line() -> String {
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
line.trim().to_string()
}
#[allow(dead_code)]
pub fn get<T: FromStr>() -> T
where
<T as FromStr>::Err: Debug,
{
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
line.trim().parse().unwrap()
}
#[allow(dead_code)]
pub fn gets<T: FromStr>() -> Vec<T>
where
<T as FromStr>::Err: Debug,
{
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
line.split_whitespace()
.map(|t| t.parse().unwrap())
.collect()
}
#[allow(dead_code)]
pub fn get2<T: FromStr, U: FromStr>() -> (T, U)
where
<T as FromStr>::Err: Debug,
<U as FromStr>::Err: Debug,
{
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
let mut iter = line.split_whitespace();
(
iter.next().unwrap().parse().unwrap(),
iter.next().unwrap().parse().unwrap(),
)
}
#[allow(dead_code)]
pub fn get3<S: FromStr, T: FromStr, U: FromStr>() -> (S, T, U)
where
<S as FromStr>::Err: Debug,
<T as FromStr>::Err: Debug,
<U as FromStr>::Err: Debug,
{
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
let mut iter = line.split_whitespace();
(
iter.next().unwrap().parse().unwrap(),
iter.next().unwrap().parse().unwrap(),
iter.next().unwrap().parse().unwrap(),
)
}
}
#[allow(unused_macros)]
macro_rules! debug {
($x: expr) => {
println!("{}: {:?}", stringify!($x), $x)
}
}
const M: u64 = 1000000007;
fn routes(x: usize, y: usize, cache: &mut Vec<Vec<Option<u64>>>) -> u64 {
if let Some(res) = cache[x][y] {
return res;
}
let left = if x == 0 { 0 } else { routes(x - 1, y, cache) };
let down = if y == 0 { 0 } else { routes(x, y - 1, cache) };
let res = left + down;
cache[x][y] = Some(res);
res
}
fn main() {
let hwkp: Vec<usize> = util::gets();
let h = hwkp[0];
let w = hwkp[1];
let k = hwkp[2];
let p = hwkp[3];
let xyn: Vec<(usize, usize, String)> = (0..k).map(|_| util::get3()).collect();
let (a, _, friends) = (0u64..1 << k)
.filter(|b| b.count_ones() <= p as u32)
.map(|b| {
let mut cache = vec![vec![None; w + 1]; h + 1];
cache[0][0] = Some(1);
for i in 0..k {
if b >> i & 1 != 1 {
cache[xyn[i].0][xyn[i].1] = Some(0);
}
}
(routes(h, w, &mut cache), k - b.count_ones() as usize, b)
})
.max()
.unwrap();
println!("{}", a % M);
for i in (0..k).filter(|&i| friends >> i & 1 == 1) {
println!("{}", xyn[i].2);
}
}