結果
問題 | No.2328 Build Walls |
ユーザー | so-hey |
提出日時 | 2023-06-10 01:31:50 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 132 ms / 3,000 ms |
コード長 | 2,639 bytes |
コンパイル時間 | 19,062 ms |
コンパイル使用メモリ | 390,332 KB |
実行使用メモリ | 12,800 KB |
最終ジャッジ日時 | 2024-06-10 15:59:54 |
合計ジャッジ時間 | 21,139 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 0 ms
6,816 KB |
testcase_01 | AC | 1 ms
6,816 KB |
testcase_02 | AC | 1 ms
6,812 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,944 KB |
testcase_06 | AC | 1 ms
6,940 KB |
testcase_07 | AC | 1 ms
6,940 KB |
testcase_08 | AC | 1 ms
6,940 KB |
testcase_09 | AC | 1 ms
6,948 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 1 ms
6,940 KB |
testcase_12 | AC | 1 ms
6,944 KB |
testcase_13 | AC | 35 ms
7,552 KB |
testcase_14 | AC | 37 ms
6,940 KB |
testcase_15 | AC | 33 ms
6,944 KB |
testcase_16 | AC | 7 ms
6,940 KB |
testcase_17 | AC | 35 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 4 ms
6,940 KB |
testcase_20 | AC | 4 ms
6,940 KB |
testcase_21 | AC | 27 ms
7,168 KB |
testcase_22 | AC | 54 ms
6,940 KB |
testcase_23 | AC | 129 ms
12,544 KB |
testcase_24 | AC | 125 ms
12,672 KB |
testcase_25 | AC | 129 ms
12,800 KB |
testcase_26 | AC | 113 ms
12,672 KB |
testcase_27 | AC | 123 ms
12,672 KB |
testcase_28 | AC | 51 ms
12,672 KB |
testcase_29 | AC | 127 ms
12,544 KB |
testcase_30 | AC | 61 ms
12,544 KB |
testcase_31 | AC | 62 ms
12,672 KB |
testcase_32 | AC | 117 ms
12,672 KB |
testcase_33 | AC | 127 ms
12,544 KB |
testcase_34 | AC | 66 ms
12,800 KB |
testcase_35 | AC | 132 ms
12,672 KB |
testcase_36 | AC | 1 ms
6,940 KB |
ソースコード
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 std::cmp::Reverse; use crate::scanner::Scanner; const DIJ: [(usize, usize); 8] = [ (!0, !0), (!0, 0), (!0, 1), (0, !0), (0, 1), (1, !0), (1, 0), (1, 1), ]; fn main() { let mut scanner = Scanner::new(); let t: usize = 1; for _ in 0..t { solve(&mut scanner); } } fn solve(scanner: &mut Scanner) { let h: usize = scanner.next(); let w: usize = scanner.next(); let h = h - 2; let mut grid = vec![vec![-1 as isize; w]; h]; let mut wall = vec![vec![false; w]; h]; for i in 0..h { for j in 0..w { grid[i][j] = scanner.next(); wall[i][j] = grid[i][j] == -1; } } let inf = 1e18 as isize; let mut dist = vec![vec![inf; w]; h]; let mut que = std::collections::BinaryHeap::new(); for i in 0..h { if !wall[i][0] { dist[i][0] = grid[i][0]; que.push(Reverse((grid[i][0], i, 0))); } } while let Some(Reverse((cd, ci, cj))) = que.pop() { if dist[ci][cj] < cd { continue; } for &(di, dj) in DIJ.iter() { let ni = ci + di; let nj = cj + dj; if h <= ni || w <= nj || wall[ni][nj] { continue; } let nd = cd + grid[ni][nj]; if dist[ni][nj] <= nd { continue; } dist[ni][nj] = nd; que.push(Reverse((nd, ni, nj))); } } let mut ans = inf; for i in 0..h { if dist[i][w - 1] < inf { ans = ans.min(dist[i][w - 1]); } } if ans == inf { ans = -1; } println!("{}", ans); }