結果
問題 | No.1244 Black Segment |
ユーザー | o2c |
提出日時 | 2020-10-07 08:51:57 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 40 ms / 2,000 ms |
コード長 | 3,399 bytes |
コンパイル時間 | 14,179 ms |
コンパイル使用メモリ | 400,300 KB |
実行使用メモリ | 10,880 KB |
最終ジャッジ日時 | 2024-07-20 03:15:26 |
合計ジャッジ時間 | 16,749 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 2 ms
6,940 KB |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 1 ms
6,944 KB |
testcase_09 | AC | 1 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 1 ms
6,944 KB |
testcase_12 | AC | 1 ms
6,940 KB |
testcase_13 | AC | 1 ms
6,944 KB |
testcase_14 | AC | 11 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,944 KB |
testcase_16 | AC | 9 ms
6,944 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 16 ms
7,552 KB |
testcase_19 | AC | 21 ms
8,320 KB |
testcase_20 | AC | 22 ms
8,320 KB |
testcase_21 | AC | 19 ms
8,704 KB |
testcase_22 | AC | 22 ms
8,320 KB |
testcase_23 | AC | 27 ms
9,088 KB |
testcase_24 | AC | 26 ms
8,832 KB |
testcase_25 | AC | 21 ms
8,320 KB |
testcase_26 | AC | 29 ms
9,344 KB |
testcase_27 | AC | 40 ms
10,880 KB |
testcase_28 | AC | 26 ms
8,960 KB |
testcase_29 | AC | 29 ms
9,856 KB |
testcase_30 | AC | 21 ms
8,704 KB |
testcase_31 | AC | 29 ms
9,856 KB |
testcase_32 | AC | 29 ms
9,984 KB |
testcase_33 | AC | 28 ms
9,840 KB |
testcase_34 | AC | 10 ms
6,940 KB |
testcase_35 | AC | 10 ms
6,940 KB |
testcase_36 | AC | 15 ms
7,608 KB |
testcase_37 | AC | 20 ms
9,344 KB |
testcase_38 | AC | 20 ms
9,472 KB |
ソースコード
#![allow(unused_imports)] use {std::cmp::*, std::collections::*, std::io::Write, std::ops::*}; #[allow(unused_macros)] macro_rules !dbg {($($e :expr ) ,*) =>{#[cfg (debug_assertions ) ] $({let (e ,mut err ) =(stringify !($e ) ,std ::io ::stderr () ) ;writeln !(err ,"{} = {:?}" ,e ,$e ) .unwrap () } ) *} ;} #[allow(unused_macros)] macro_rules !min {($a :expr $(,) *) =>{{$a } } ;($a :expr ,$b :expr $(,) *) =>{{std ::cmp ::min ($a ,$b ) } } ;($a :expr ,$($rest :expr ) ,+$(,) *) =>{{std ::cmp ::min ($a ,min !($($rest ) ,+) ) } } ;} #[allow(unused_macros)] macro_rules !chmin {($base :expr ,$($cmps :expr ) ,+$(,) *) =>{{let cmp_min =min !($($cmps ) ,+) ;if $base >cmp_min {$base =cmp_min ;true } else {false } } } ;} #[allow(unused_macros)] macro_rules !max {($a :expr $(,) *) =>{{$a } } ;($a :expr ,$b :expr $(,) *) =>{{std ::cmp ::max ($a ,$b ) } } ;($a :expr ,$($rest :expr ) ,+$(,) *) =>{{std ::cmp ::max ($a ,max !($($rest ) ,+) ) } } ;} #[allow(unused_macros)] macro_rules !chmax {($base :expr ,$($cmps :expr ) ,+$(,) *) =>{{let cmp_max =max !($($cmps ) ,+) ;if $base <cmp_max {$base =cmp_max ;true } else {false } } } ;} #[allow(dead_code)] mod scanner { use std; use std::io::Read; use std::str::FromStr; use std::str::SplitWhitespace; pub struct Scanner<'a> { it: SplitWhitespace<'a>, } impl<'a> Scanner<'a> { pub fn new(s: &'a String) -> Scanner<'a> { Scanner { it: s.split_whitespace(), } } pub fn next<T: FromStr>(&mut self) -> T { match self.it.next().unwrap().parse::<T>() { Ok(v) => v, _ => panic!("Scanner error"), } } pub fn next_chars(&mut self) -> Vec<char> { self.next::<String>().chars().collect() } pub fn next_vec<T: FromStr>(&mut self, len: usize) -> Vec<T> { (0..len).map(|_| self.next()).collect() } } pub fn read_string() -> String { let mut s = String::new(); std::io::stdin().read_to_string(&mut s).unwrap(); s } } fn main() { let sc = scanner::read_string(); let mut sc = scanner::Scanner::new(&sc); let n: usize = sc.next(); let m: usize = sc.next(); let a: usize = sc.next(); let b: usize = sc.next(); let mut to = vec![vec![]; n + 2]; for _ in 0..m { let mut l: usize = sc.next(); let mut r: usize = sc.next(); if l < a && r < a { continue; } if l > b && r > b { continue; } if l < a { l = a; } if r > b { r = b + 1; } else { r += 1; } to[l].push(r); to[r].push(l); } let mut d = vec![100000000usize; n + 2]; let mut visited = vec![false; n + 2]; let mut q = std::collections::VecDeque::<usize>::new(); q.push_back(a); d[a] = 0; while let Some(v) = q.pop_front() { dbg!(v); if visited[v] { continue; } visited[v] = true; for &u in to[v].iter() { if visited[u] { continue; } dbg!((v, u)); d[u] = min(d[u], d[v] + 1); q.push_back(u); } } if d[b + 1] <= m { println!("{}", d[b + 1]); } else { println!("-1"); } }