結果
問題 | No.1283 Extra Fee |
ユーザー | fukafukatani |
提出日時 | 2021-01-02 15:44:44 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 404 ms / 2,000 ms |
コード長 | 2,863 bytes |
コンパイル時間 | 13,609 ms |
コンパイル使用メモリ | 378,520 KB |
実行使用メモリ | 85,128 KB |
最終ジャッジ日時 | 2024-11-16 07:16:53 |
合計ジャッジ時間 | 19,927 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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
6,816 KB |
testcase_01 | AC | 1 ms
6,816 KB |
testcase_02 | AC | 1 ms
6,816 KB |
testcase_03 | AC | 1 ms
6,820 KB |
testcase_04 | AC | 1 ms
6,816 KB |
testcase_05 | AC | 1 ms
6,816 KB |
testcase_06 | AC | 1 ms
6,820 KB |
testcase_07 | AC | 1 ms
6,816 KB |
testcase_08 | AC | 1 ms
6,816 KB |
testcase_09 | AC | 1 ms
6,820 KB |
testcase_10 | AC | 1 ms
6,820 KB |
testcase_11 | AC | 14 ms
6,820 KB |
testcase_12 | AC | 19 ms
6,820 KB |
testcase_13 | AC | 13 ms
6,816 KB |
testcase_14 | AC | 62 ms
15,948 KB |
testcase_15 | AC | 104 ms
24,956 KB |
testcase_16 | AC | 19 ms
6,820 KB |
testcase_17 | AC | 272 ms
69,376 KB |
testcase_18 | AC | 340 ms
73,388 KB |
testcase_19 | AC | 379 ms
82,836 KB |
testcase_20 | AC | 343 ms
72,200 KB |
testcase_21 | AC | 370 ms
79,532 KB |
testcase_22 | AC | 310 ms
66,316 KB |
testcase_23 | AC | 352 ms
85,128 KB |
testcase_24 | AC | 368 ms
85,000 KB |
testcase_25 | AC | 404 ms
84,996 KB |
testcase_26 | AC | 401 ms
85,004 KB |
testcase_27 | AC | 394 ms
85,000 KB |
testcase_28 | AC | 396 ms
85,000 KB |
testcase_29 | AC | 297 ms
76,040 KB |
コンパイルメッセージ
warning: unused variable: `i` --> src/main.rs:26:9 | 26 | for i in 0..m { | ^ help: if this is intentional, prefix it with an underscore: `_i` | = note: `#[warn(unused_variables)]` on by default
ソースコード
#![allow(unused_imports)] use std::cmp::*; use std::collections::*; use std::io::Write; use std::ops::Bound::*; #[allow(unused_macros)] macro_rules! debug { ($($e:expr),*) => { #[cfg(debug_assertions)] $({ let (e, mut err) = (stringify!($e), std::io::stderr()); writeln!(err, "{} = {:?}", e, $e).unwrap() })* }; } fn get_idx(i: usize, x: usize, y: usize, w: usize) -> usize { i + x * 2 + y * 2 * w } fn main() { let v = read_vec::<usize>(); let (n, m) = (v[0], v[1]); let mut cost_dict = HashMap::new(); for i in 0..m { let v = read_vec::<i64>(); let (h, w, c) = (v[0] as usize - 1, v[1] as usize - 1, v[2]); cost_dict.insert((h, w), c); } let mut edges = vec![vec![]; n * n * 2]; for y in 0..n { for x in 0..n { let cost; let cur0 = get_idx(0, x, y, n); let cur1 = get_idx(1, x, y, n); if cost_dict.contains_key(&(y, x)) { cost = cost_dict[&(y, x)]; } else { cost = 0; } for (adj_x, adj_y) in get_adjacents(x, y, n, n) { let adj0 = get_idx(0, adj_x, adj_y, n); let adj1 = get_idx(1, adj_x, adj_y, n); edges[adj0].push((cur0, cost + 1)); edges[adj1].push((cur1, cost + 1)); edges[adj0].push((cur1, 1)); } } } let d = solve(&edges, 0); let ans = d[get_idx(1, n - 1, n - 1, n)]; println!("{}", ans); } fn get_adjacents(x: usize, y: usize, w: usize, h: usize) -> Vec<(usize, usize)> { let mut adjacents = vec![]; if x > 0 { adjacents.push((x - 1, y)); } if y > 0 { adjacents.push((x, y - 1)); } if y < h - 1 { adjacents.push((x, y + 1)); } if x < w - 1 { adjacents.push((x + 1, y)); } adjacents } fn read<T: std::str::FromStr>() -> T { let mut s = String::new(); std::io::stdin().read_line(&mut s).ok(); s.trim().parse().ok().unwrap() } fn read_vec<T: std::str::FromStr>() -> Vec<T> { read::<String>() .split_whitespace() .map(|e| e.parse().ok().unwrap()) .collect() } const INF: i64 = 100000_00000_00000; fn solve(edges: &Vec<Vec<(usize, i64)>>, start_idx: usize) -> Vec<i64> { let num_apexes = edges.len(); let mut d = vec![INF; num_apexes]; d[start_idx] = 0; let mut que = std::collections::BinaryHeap::new(); que.push((std::cmp::Reverse(0), start_idx)); while let Some((u, v)) = que.pop() { if d[v] < u.0 { continue; } for e in &edges[v] { if d[v] != INF && d[e.0] > d[v] + e.1 { d[e.0] = d[v] + e.1; que.push((std::cmp::Reverse(d[e.0]), e.0)); } } } d }