結果
問題 | No.2242 Cities and Teleporters |
ユーザー | koba-e964 |
提出日時 | 2023-03-11 00:50:07 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 538 ms / 3,000 ms |
コード長 | 3,382 bytes |
コンパイル時間 | 13,577 ms |
コンパイル使用メモリ | 383,488 KB |
実行使用メモリ | 42,608 KB |
最終ジャッジ日時 | 2024-09-18 05:52:47 |
合計ジャッジ時間 | 21,479 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 2 ms
6,812 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 538 ms
42,356 KB |
testcase_06 | AC | 429 ms
42,572 KB |
testcase_07 | AC | 442 ms
42,480 KB |
testcase_08 | AC | 462 ms
42,484 KB |
testcase_09 | AC | 302 ms
42,608 KB |
testcase_10 | AC | 316 ms
42,476 KB |
testcase_11 | AC | 313 ms
42,520 KB |
testcase_12 | AC | 291 ms
42,604 KB |
testcase_13 | AC | 292 ms
42,480 KB |
testcase_14 | AC | 282 ms
42,608 KB |
testcase_15 | AC | 268 ms
42,352 KB |
testcase_16 | AC | 381 ms
42,480 KB |
testcase_17 | AC | 378 ms
42,480 KB |
testcase_18 | AC | 221 ms
41,940 KB |
testcase_19 | AC | 197 ms
41,892 KB |
testcase_20 | AC | 258 ms
40,824 KB |
testcase_21 | AC | 293 ms
41,068 KB |
testcase_22 | AC | 174 ms
40,828 KB |
testcase_23 | AC | 182 ms
42,484 KB |
testcase_24 | AC | 180 ms
42,484 KB |
testcase_25 | AC | 178 ms
42,608 KB |
ソースコード
use std::cmp::*; use std::io::{Write, BufWriter}; // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { ($($r:tt)*) => { let stdin = std::io::stdin(); let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock())); let mut next = move || -> String{ bytes.by_ref().map(|r|r.unwrap() as char) .skip_while(|c|c.is_whitespace()) .take_while(|c|!c.is_whitespace()) .collect() }; input_inner!{next, $($r)*} }; } macro_rules! input_inner { ($next:expr) => {}; ($next:expr,) => {}; ($next:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($next, $t); input_inner!{$next $($r)*} }; } macro_rules! read_value { ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) }; ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>() }; ($next:expr, usize1) => (read_value!($next, usize) - 1); ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } trait Bisect<T> { fn lower_bound(&self, val: &T) -> usize; fn upper_bound(&self, val: &T) -> usize; } impl<T: Ord> Bisect<T> for [T] { fn lower_bound(&self, val: &T) -> usize { let mut pass = self.len() + 1; let mut fail = 0; while pass - fail > 1 { let mid = (pass + fail) / 2; if &self[mid - 1] >= val { pass = mid; } else { fail = mid; } } pass - 1 } fn upper_bound(&self, val: &T) -> usize { let mut pass = self.len() + 1; let mut fail = 0; while pass - fail > 1 { let mid = (pass + fail) / 2; if &self[mid - 1] > val { pass = mid; } else { fail = mid; } } pass - 1 } } fn main() { let out = std::io::stdout(); let mut out = BufWriter::new(out.lock()); macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););} input! { n: usize, h: [i64; n], t: [i64; n], q: usize, ab: [(usize1, usize1); q], } let mut hi = vec![]; for i in 0..n { hi.push((h[i], i)); } hi.sort(); let mut map = vec![0; n]; for i in 0..n { map[hi[i].1] = i; } let mut to = vec![0; n]; for i in 0..n { let idx = hi.upper_bound(&(t[i], n)); to[map[i]] = idx; } const B: usize = 18; let mut bin = vec![vec![0; n + 1]; B]; for i in 0..n { bin[0][i + 1] = max(bin[0][i], to[i]); } for i in 0..B - 1 { for j in 0..n + 1 { bin[i + 1][j] = bin[i][bin[i][j]]; } } for (a, b) in ab { let a = map[a]; let b = map[b]; let mut a = to[a]; if b < a { puts!("1\n"); continue; } if bin[0][a] <= a { puts!("-1\n"); continue; } let mut x = 0; for i in (0..B).rev() { if bin[i][a] <= b { x |= 1 << i; a = bin[i][a]; } } if bin[0][a] <= b { puts!("-1\n"); } else { puts!("{}\n", x + 2); } } }