結果
| 問題 |
No.1477 Lamps on Graph
|
| コンテスト | |
| ユーザー |
kichi2004_
|
| 提出日時 | 2021-04-16 20:08:53 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 214 ms / 2,000 ms |
| コード長 | 2,708 bytes |
| コンパイル時間 | 14,831 ms |
| コンパイル使用メモリ | 379,164 KB |
| 実行使用メモリ | 17,388 KB |
| 最終ジャッジ日時 | 2024-07-02 22:00:51 |
| 合計ジャッジ時間 | 20,078 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 38 |
コンパイルメッセージ
warning: unused imports: `BTreeMap`, `BTreeSet`, `BinaryHeap`, `HashMap`
--> src/main.rs:3:34
|
3 | use std::collections::{VecDeque, HashMap, BTreeSet, BinaryHeap, BTreeMap};
| ^^^^^^^ ^^^^^^^^ ^^^^^^^^^^ ^^^^^^^^
|
= note: `#[warn(unused_imports)]` on by default
warning: unused import: `std::convert::TryFrom`
--> src/main.rs:4:5
|
4 | use std::convert::TryFrom;
| ^^^^^^^^^^^^^^^^^^^^^
warning: unused import: `std::cmp::min`
--> src/main.rs:5:5
|
5 | use std::cmp::min;
| ^^^^^^^^^^^^^
warning: constant `MOD` is never used
--> src/main.rs:7:7
|
7 | const MOD: usize = 998244353;
| ^^^
|
= note: `#[warn(dead_code)]` on by default
ソースコード
use std::str::FromStr;
use std::io::{BufRead, stdin, Stdin};
use std::collections::{VecDeque, HashMap, BTreeSet, BinaryHeap, BTreeMap};
use std::convert::TryFrom;
use std::cmp::min;
const MOD: usize = 998244353;
fn main() {
let mut sc = Scanner::new();
let n = sc.read_usize();
let m = sc.read_usize();
let a = sc.read_vec::<i32>(n);
let mut graph = (0..n).map(|_| Vec::<usize>::new()).collect::<Vec<_>>();
for _ in 0..m {
let a = sc.read_usize();
let b = sc.read_usize();
graph[a-1].push(b-1);
graph[b-1].push(a-1);
}
let mut is_on = vec![false; n];
let k = sc.read_usize();
for _ in 0..k {
let b = sc.read_usize();
is_on[b - 1] = true;
}
let mut list = (0..n).map(|i| (a[i], i)).collect::<Vec<_>>();
list.sort();
let mut ans = Vec::<usize>::new();
for (_, i) in list{
if !is_on[i] {
continue;
}
is_on[i] = false;
ans.push(i + 1);
for j in &graph[i] {
if a[i] < a[*j] {
is_on[*j] = !is_on[*j];
}
}
}
if is_on.iter().any(|s| *s) {
println!("-1");
return;
}
println!("{}", ans.len());
for v in ans {
println!("{}", v);
}
}
struct Scanner {
sep: char,
inputs: VecDeque<String>,
cin: Stdin,
}
#[allow(unused)]
impl Scanner {
pub fn new() -> Scanner {
Self::from_sep(' ')
}
pub fn from_sep(ch: char) -> Scanner {
Scanner {
sep: ch,
inputs: VecDeque::new(),
cin: stdin(),
}
}
pub fn read<T: FromStr>(&mut self) -> T {
let mut tries = 0;
let cin_base = &mut self.cin;
let cin = &mut cin_base.lock();
while self.inputs.is_empty() {
if tries == 3 {
panic!("3 Blank lines found.");
}
let mut str: String = String::new();
cin.read_line(&mut str).unwrap();
for s in str.trim_end().split(self.sep) {
&self.inputs.push_back(String::from(s));
}
tries += 1;
}
let s: String = String::from(&self.inputs.pop_front().unwrap());
s.parse::<T>().ok()
.expect("Failed to parse token.")
}
pub fn read_i32(&mut self) -> i32 { self.read() }
pub fn read_i64(&mut self) -> i64 { self.read() }
pub fn read_usize(&mut self) -> usize { self.read() }
pub fn read_vec<T: FromStr>(&mut self, n: usize) -> Vec<T> {
(0..n).map(|_| self.read()).collect::<Vec<_>>()
}
pub fn read_chars(&mut self) -> Vec<char> { self.read::<String>().chars().collect::<Vec<_>>() }
}
kichi2004_