結果
| 問題 |
No.556 仁義なきサルたち
|
| ユーザー |
|
| 提出日時 | 2017-10-11 10:52:04 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 15 ms / 2,000 ms |
| コード長 | 2,983 bytes |
| コンパイル時間 | 13,270 ms |
| コンパイル使用メモリ | 377,808 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2024-11-17 09:21:40 |
| 合計ジャッジ時間 | 14,619 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 22 |
コンパイルメッセージ
warning: field `rank` is never read
--> src/main.rs:67:9
|
64 | struct UFT {
| --- field in this struct
...
67 | pub rank: Vec<usize>,
| ^^^^
|
= note: `#[warn(dead_code)]` on by default
ソースコード
#[allow(unused_imports)]
use std::cmp::{max, min};
#[allow(unused_imports)]
use std::collections::{HashMap, HashSet};
mod util {
use std::io::stdin;
use std::str::FromStr;
use std::fmt::Debug;
#[allow(dead_code)]
pub fn line() -> String {
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
line.trim().to_string()
}
#[allow(dead_code)]
pub fn get<T: FromStr>() -> T
where
<T as FromStr>::Err: Debug,
{
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
line.trim().parse().unwrap()
}
#[allow(dead_code)]
pub fn gets<T: FromStr>() -> Vec<T>
where
<T as FromStr>::Err: Debug,
{
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
line.split_whitespace()
.map(|t| t.parse().unwrap())
.collect()
}
#[allow(dead_code)]
pub fn get2<T: FromStr, U: FromStr>() -> (T, U)
where
<T as FromStr>::Err: Debug,
<U as FromStr>::Err: Debug,
{
let mut line: String = String::new();
stdin().read_line(&mut line).unwrap();
let mut iter = line.split_whitespace();
(
iter.next().unwrap().parse().unwrap(),
iter.next().unwrap().parse().unwrap(),
)
}
}
#[allow(unused_macros)]
macro_rules! debug {
($x: expr) => {
println!("{}: {:?}", stringify!($x), $x)
}
}
struct UFT {
pub par: Vec<usize>,
pub num: Vec<usize>,
pub rank: Vec<usize>,
}
impl UFT {
fn new(n: usize) -> Self {
UFT {
par: (0..n).collect(),
num: vec![1; n],
rank: vec![0; n],
}
}
fn find(&mut self, x: usize) -> usize {
if self.par[x] == x {
x
} else {
let p = self.par[x];
let pp = self.find(p);
self.par[x] = pp;
pp
}
}
fn unite(&mut self, x: usize, y: usize) {
let x = self.find(x);
let y = self.find(y);
if x == y {
return;
}
if (self.num[x], y) > (self.num[y], x) {
self.par[y] = x;
self.num[x] += self.num[y];
self.num[y] = 0;
} else {
self.par[x] = y;
self.num[y] += self.num[x];
self.num[x] = 0;
}
/*
if self.rank[x] < self.rank[y] {
self.par[x] = y;
} else {
self.par[y] = x;
if self.rank[x] == self.rank[y] {
self.rank[x] += 1;
}
}
*/
}
}
fn main() {
let (n, m): (usize, usize) = util::get2();
let ab: Vec<(usize, usize)> = (0..m).map(|_| util::get2()).collect();
let mut uft = UFT::new(n + 1);
for &(a, b) in &ab {
uft.unite(a, b);
}
for i in 1..n + 1 {
println!("{}", uft.find(i));
}
}