結果
問題 | No.1480 Many Complete Graphs |
ユーザー | koba-e964 |
提出日時 | 2021-10-15 09:28:00 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 88 ms / 2,000 ms |
コード長 | 2,751 bytes |
コンパイル時間 | 12,400 ms |
コンパイル使用メモリ | 401,904 KB |
実行使用メモリ | 18,256 KB |
最終ジャッジ日時 | 2024-09-17 16:46:26 |
合計ジャッジ時間 | 16,538 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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
6,816 KB |
testcase_01 | AC | 1 ms
6,812 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 1 ms
6,944 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,940 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 | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 1 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 17 ms
8,320 KB |
testcase_14 | AC | 11 ms
6,944 KB |
testcase_15 | AC | 27 ms
9,344 KB |
testcase_16 | AC | 17 ms
7,296 KB |
testcase_17 | AC | 15 ms
6,944 KB |
testcase_18 | AC | 5 ms
6,944 KB |
testcase_19 | AC | 17 ms
6,940 KB |
testcase_20 | AC | 23 ms
7,680 KB |
testcase_21 | AC | 17 ms
8,192 KB |
testcase_22 | AC | 9 ms
6,944 KB |
testcase_23 | AC | 37 ms
14,080 KB |
testcase_24 | AC | 32 ms
9,472 KB |
testcase_25 | AC | 51 ms
12,928 KB |
testcase_26 | AC | 61 ms
14,208 KB |
testcase_27 | AC | 31 ms
9,728 KB |
testcase_28 | AC | 44 ms
17,132 KB |
testcase_29 | AC | 43 ms
17,132 KB |
testcase_30 | AC | 43 ms
16,620 KB |
testcase_31 | AC | 42 ms
16,748 KB |
testcase_32 | AC | 44 ms
17,256 KB |
testcase_33 | AC | 43 ms
16,876 KB |
testcase_34 | AC | 42 ms
17,260 KB |
testcase_35 | AC | 41 ms
16,748 KB |
testcase_36 | AC | 42 ms
16,876 KB |
testcase_37 | AC | 42 ms
16,748 KB |
testcase_38 | AC | 42 ms
16,620 KB |
testcase_39 | AC | 43 ms
16,748 KB |
testcase_40 | AC | 43 ms
16,748 KB |
testcase_41 | AC | 42 ms
16,748 KB |
testcase_42 | AC | 42 ms
17,260 KB |
testcase_43 | AC | 42 ms
16,748 KB |
testcase_44 | AC | 42 ms
16,620 KB |
testcase_45 | AC | 43 ms
17,252 KB |
testcase_46 | AC | 42 ms
16,752 KB |
testcase_47 | AC | 88 ms
17,536 KB |
testcase_48 | AC | 87 ms
17,280 KB |
testcase_49 | AC | 87 ms
17,460 KB |
testcase_50 | AC | 50 ms
17,188 KB |
testcase_51 | AC | 86 ms
17,524 KB |
testcase_52 | AC | 62 ms
16,808 KB |
testcase_53 | AC | 60 ms
17,048 KB |
testcase_54 | AC | 60 ms
16,924 KB |
testcase_55 | AC | 64 ms
16,920 KB |
testcase_56 | AC | 60 ms
17,048 KB |
testcase_57 | AC | 48 ms
18,256 KB |
testcase_58 | AC | 52 ms
15,696 KB |
evil_aftercontest.txt | AC | 109 ms
28,952 KB |
ソースコード
use std::io::Read; fn get_word() -> String { let stdin = std::io::stdin(); let mut stdin=stdin.lock(); let mut u8b: [u8; 1] = [0]; loop { let mut buf: Vec<u8> = Vec::with_capacity(16); loop { let res = stdin.read(&mut u8b); if res.unwrap_or(0) == 0 || u8b[0] <= b' ' { break; } else { buf.push(u8b[0]); } } if buf.len() >= 1 { let ret = String::from_utf8(buf).unwrap(); return ret; } } } #[allow(dead_code)] fn get<T: std::str::FromStr>() -> T { get_word().parse().ok().unwrap() } /* * Dijkstra's algorithm. * Verified by: AtCoder ABC164 (https://atcoder.jp/contests/abc164/submissions/12423853) */ struct Dijkstra { edges: Vec<Vec<(usize, i64)>>, // adjacent list representation } impl Dijkstra { fn new(n: usize) -> Self { Dijkstra { edges: vec![Vec::new(); n] } } fn add_edge(&mut self, from: usize, to: usize, cost: i64) { self.edges[from].push((to, cost)); } /* * This function returns a Vec consisting of the distances from vertex source. */ fn solve(&self, source: usize, inf: i64) -> Vec<i64> { let n = self.edges.len(); let mut d = vec![inf; n]; // que holds (-distance, vertex), so that que.pop() returns the nearest element. let mut que = std::collections::BinaryHeap::new(); que.push((0, source)); while let Some((cost, pos)) = que.pop() { let cost = -cost; if d[pos] <= cost { continue; } d[pos] = cost; for &(w, c) in &self.edges[pos] { let newcost = cost + c; if d[w] > newcost { d[w] = newcost + 1; que.push((-newcost, w)); } } } return d; } } fn main() { let n: usize = get(); let m: usize = get(); let mut dijk = Dijkstra::new(n + 2 * m); for i in 0..m { let k: usize = get(); let c: i64 = get(); let s: Vec<usize> = (0..k).map(|_| get()).collect(); for &s in &s { if s % 2 == 0 { dijk.add_edge(s - 1, n + 2 * i, s as i64 / 2 + c); dijk.add_edge(n + 2 * i, s - 1, s as i64 / 2); } else { dijk.add_edge(s - 1, n + 2 * i + 1, s as i64 / 2 + c); dijk.add_edge(n + 2 * i, s - 1, s as i64 / 2 + 1); } dijk.add_edge(n + 2 * i + 1, s - 1, s as i64 / 2 + 1); } } const INF: i64 = 1 << 50; let sol = dijk.solve(0, INF); println!("{}", if sol[n - 1] >= INF { -1 } else { sol[n - 1] }); }