結果
問題 | No.2563 色ごとのグループ |
ユーザー | ikoma |
提出日時 | 2023-12-02 15:20:06 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 154 ms / 2,000 ms |
コード長 | 3,970 bytes |
コンパイル時間 | 15,934 ms |
コンパイル使用メモリ | 379,000 KB |
実行使用メモリ | 24,812 KB |
最終ジャッジ日時 | 2024-09-26 18:29:49 |
合計ジャッジ時間 | 18,785 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 1 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 1 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 1 ms
5,376 KB |
testcase_19 | AC | 3 ms
5,376 KB |
testcase_20 | AC | 8 ms
5,376 KB |
testcase_21 | AC | 4 ms
5,376 KB |
testcase_22 | AC | 3 ms
5,376 KB |
testcase_23 | AC | 5 ms
5,376 KB |
testcase_24 | AC | 49 ms
9,460 KB |
testcase_25 | AC | 46 ms
9,364 KB |
testcase_26 | AC | 78 ms
14,008 KB |
testcase_27 | AC | 105 ms
22,328 KB |
testcase_28 | AC | 83 ms
14,840 KB |
testcase_29 | AC | 130 ms
24,684 KB |
testcase_30 | AC | 129 ms
24,812 KB |
testcase_31 | AC | 149 ms
24,680 KB |
testcase_32 | AC | 154 ms
24,808 KB |
testcase_33 | AC | 69 ms
8,960 KB |
testcase_34 | AC | 67 ms
8,960 KB |
testcase_35 | AC | 68 ms
8,960 KB |
testcase_36 | AC | 68 ms
8,960 KB |
testcase_37 | AC | 68 ms
9,088 KB |
ソースコード
#![allow(unused_imports, dead_code, unused_macros, unused_variables, non_snake_case, unused_parens)] use std::cmp::*; use std::mem::swap; use std::collections::*; const MOD:u64 = 1_000_000_007; const INF:i64 = 0x7fff_ffff_ffff_ffff; 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),+))}};} 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),+))}};} macro_rules! mulvec {($x:expr; $s:expr) => {vec![$x; $s]};($x:expr; $s0:expr; $( $s:expr );+) => {mulvec![vec![$x; $s0]; $( $s );+ ]};} fn solve() { input! { n: usize, m: usize, C:[usize;n], UV:[(usize,usize);m], } let mut ccnt = HashMap::new(); for (i, &c) in C.iter().enumerate() { ccnt.entry(c).or_insert(vec![]).push(i); } let mut uf = UnionFind::new(n); for (u,v) in UV { let u = u-1; let v = v-1; if C[u] != C[v] {continue} uf.unite(u, v); } let mut ans = 0; for (_, idxs) in ccnt.iter() { let mut cnt = HashSet::new(); for &i in idxs { cnt.insert(uf.find(i)); } ans += cnt.len()-1; } println!("{}", ans); } fn main() { std::thread::Builder::new() .stack_size(128 * 1024 * 1024) .spawn(|| solve()).unwrap() .join().unwrap(); } pub struct UnionFind { parents: Vec<i32>, } impl UnionFind { pub fn new(n: usize) -> Self { UnionFind { parents: vec![-1_i32; n], } } pub fn find(&mut self, x: usize) -> usize { if self.parents[x] < 0 { return x; } self.parents[x] = self.find(self.parents[x] as usize) as i32; self.parents[x] as usize } pub fn same(&mut self, x:usize, y:usize) -> bool { self.find(x) == self.find(y) } pub fn unite(&mut self, x:usize, y:usize) -> bool { let mut x = self.find(x) as usize; let mut y = self.find(y) as usize; if x == y { return false; } if self.parents[x] > self.parents[y] { std::mem::swap(&mut x, &mut y); } self.parents[x] += self.parents[y]; self.parents[y] = x as i32; true } pub fn size(&mut self, x:usize) -> usize { let parent = self.find(x); (-self.parents[parent]) as usize } } mod _input { // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 #[macro_export] macro_rules! input { (source = $s:expr, $($r:tt)*) => { let mut iter = $s.split_whitespace(); let mut next = || { iter.next().unwrap() }; input_inner!{next, $($r)*} }; ($($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_export] 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_export] 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, chars) => { read_value!($next, String).chars().collect::<Vec<char>>() }; ($next:expr, usize1) => { read_value!($next, usize) - 1 }; ($next:expr, $t:ty) => { $next().parse::<$t>().expect("Parse error") }; } }