結果
問題 | No.1598 4×4 Grid |
ユーザー | akakimidori |
提出日時 | 2021-07-09 22:18:38 |
言語 | Rust (1.77.0) |
結果 |
AC
|
実行時間 | 939 ms / 4,000 ms |
コード長 | 2,587 bytes |
コンパイル時間 | 933 ms |
コンパイル使用メモリ | 153,716 KB |
実行使用メモリ | 113,368 KB |
最終ジャッジ日時 | 2023-09-14 09:33:49 |
合計ジャッジ時間 | 11,745 ms |
ジャッジサーバーID (参考情報) |
judge11 / judge12 |
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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 | 939 ms
113,324 KB |
testcase_01 | AC | 921 ms
113,352 KB |
testcase_02 | AC | 905 ms
113,368 KB |
testcase_03 | AC | 903 ms
113,364 KB |
testcase_04 | AC | 907 ms
113,352 KB |
testcase_05 | AC | 908 ms
113,368 KB |
testcase_06 | AC | 901 ms
113,352 KB |
testcase_07 | AC | 921 ms
113,356 KB |
testcase_08 | AC | 930 ms
113,356 KB |
testcase_09 | AC | 912 ms
113,304 KB |
コンパイルメッセージ
warning: unused import: `std::io::Write` --> Main.rs:51:5 | 51 | use std::io::Write; | ^^^^^^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: unused variable: `n` --> Main.rs:60:9 | 60 | let n = 4usize; | ^ help: if this is intentional, prefix it with an underscore: `_n` | = note: `#[warn(unused_variables)]` on by default warning: type alias `Map` is never used --> Main.rs:54:6 | 54 | type Map<K, V> = HashMap<K, V>; | ^^^ | = note: `#[warn(dead_code)]` on by default warning: 3 warnings emitted
ソースコード
// ---------- begin input macro ---------- // reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { (source = $s:expr, $($r:tt)*) => { let mut iter = $s.split_whitespace(); input_inner!{iter, $($r)*} }; ($($r:tt)*) => { let s = { use std::io::Read; let mut s = String::new(); std::io::stdin().read_to_string(&mut s).unwrap(); s }; let mut iter = s.split_whitespace(); input_inner!{iter, $($r)*} }; } macro_rules! input_inner { ($iter:expr) => {}; ($iter:expr, ) => {}; ($iter:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($iter, $t); input_inner!{$iter $($r)*} }; } macro_rules! read_value { ($iter:expr, ( $($t:tt),* )) => { ( $(read_value!($iter, $t)),* ) }; ($iter:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>() }; ($iter:expr, chars) => { read_value!($iter, String).chars().collect::<Vec<char>>() }; ($iter:expr, bytes) => { read_value!($iter, String).bytes().collect::<Vec<u8>>() }; ($iter:expr, usize1) => { read_value!($iter, usize) - 1 }; ($iter:expr, $t:ty) => { $iter.next().unwrap().parse::<$t>().expect("Parse error") }; } // ---------- end input macro ---------- use std::io::Write; use std::collections::*; type Map<K, V> = HashMap<K, V>; fn run() { input! { diff: usize, } let n = 4usize; let mut dp = vec![vec![0u64; 1 << 16]; 216 + 1]; dp[0][0] = 1; for used in 0..(1 << 16) { for diff in 0..dp.len() { let way = dp[diff][used]; if way == 0 { continue; } for j in 0..16 { if used >> j & 1 == 0 { let used = used | (1 << j); let mut diff = diff; for i in 1..4 { for j in 0..4 { diff += (used >> (4 * i + j) & 1) ^ (used >> (4 * (i - 1) + j) & 1); } } for i in 0..4 { for j in 1..4 { diff += (used >> (4 * i + j) & 1) ^ (used >> (4 * i + j - 1) & 1); } } dp[diff][used] += way; } } } } let ans = dp[diff][(1 << 16) - 1]; println!("{}", ans); } fn main() { run(); }