結果
| 問題 |
No.2274 三角彩色
|
| コンテスト | |
| ユーザー |
akakimidori
|
| 提出日時 | 2023-04-14 22:58:16 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,350 bytes |
| コンパイル時間 | 12,448 ms |
| コンパイル使用メモリ | 388,452 KB |
| 実行使用メモリ | 6,824 KB |
| 最終ジャッジ日時 | 2024-10-10 13:59:26 |
| 合計ジャッジ時間 | 13,920 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 5 WA * 17 |
コンパイルメッセージ
warning: unused variable: `n`
--> src/main.rs:3:9
|
3 | n: usize,
| ^
|
help: `n` is captured in macro and introduced a unused variable
--> src/main.rs:74:13
|
2 | / input! {
3 | | n: usize,
4 | | m: usize,
5 | | modulo: u64,
... |
8 | | a: [(usize, usize, usize); q],
9 | | }
| |_____- in this macro invocation
...
74 | let $var = read_value!($iter, $t);
| ^^^^
= note: `#[warn(unused_variables)]` on by default
= note: this warning originates in the macro `input_inner` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info)
ソースコード
fn main() {
input! {
n: usize,
m: usize,
modulo: u64,
q: usize,
e: [(usize, usize); m],
a: [(usize, usize, usize); q],
}
let mut z = e.iter().flat_map(|e| [e.0, e.1]).collect::<Vec<_>>();
z.sort();
z.dedup();
let mut e = e;
for e in e.iter_mut() {
e.0 = z.binary_search(&e.0).unwrap();
e.1 = z.binary_search(&e.1).unwrap();
}
let mut dsu = DSU::new(z.len());
let mut all = 1 % modulo;
for &(a, b) in e.iter() {
if dsu.unite(a, b).is_some() {
all = 2 * all % modulo;
}
}
let all = all;
let mut base: Vec<Vec<u8>> = vec![];
let mut t = 1;
for a in a.iter() {
let mut b = vec![0u8; m];
b[a.0] = 1;
b[a.1] = 1;
b[a.2] = 1;
for x in base.iter() {
let pos = x.iter().position(|x| *x == 1).unwrap();
if b[pos] == 1 {
for (b, x) in b.iter_mut().zip(x.iter()) {
*b ^= *x;
}
}
}
if b.iter().any(|b| *b > 0) {
base.push(b);
t = 2 * t % modulo;
}
}
println!("{} {}", (all + modulo - t) % modulo, t);
}
// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
#[macro_export]
macro_rules! input {
(source = $s:expr, $($r:tt)*) => {
let mut iter = $s.split_whitespace();
input_inner!{iter, $($r)*}
};
($($r:tt)*) => {
let s = {
use std::io::Read;
let mut s = String::new();
std::io::stdin().read_to_string(&mut s).unwrap();
s
};
let mut iter = s.split_whitespace();
input_inner!{iter, $($r)*}
};
}
#[macro_export]
macro_rules! input_inner {
($iter:expr) => {};
($iter:expr, ) => {};
($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
let $var = read_value!($iter, $t);
input_inner!{$iter $($r)*}
};
}
#[macro_export]
macro_rules! read_value {
($iter:expr, ( $($t:tt),* )) => {
( $(read_value!($iter, $t)),* )
};
($iter:expr, [ $t:tt ; $len:expr ]) => {
(0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
};
($iter:expr, chars) => {
read_value!($iter, String).chars().collect::<Vec<char>>()
};
($iter:expr, bytes) => {
read_value!($iter, String).bytes().collect::<Vec<u8>>()
};
($iter:expr, usize1) => {
read_value!($iter, usize) - 1
};
($iter:expr, $t:ty) => {
$iter.next().unwrap().parse::<$t>().expect("Parse error")
};
}
// ---------- end input macro ----------
//---------- begin union_find ----------
pub struct DSU {
p: Vec<i32>,
}
impl DSU {
pub fn new(n: usize) -> DSU {
assert!(n < std::i32::MAX as usize);
DSU { p: vec![-1; n] }
}
pub fn init(&mut self) {
self.p.iter_mut().for_each(|p| *p = -1);
}
pub fn root(&self, mut x: usize) -> usize {
assert!(x < self.p.len());
while self.p[x] >= 0 {
x = self.p[x] as usize;
}
x
}
pub fn same(&self, x: usize, y: usize) -> bool {
assert!(x < self.p.len() && y < self.p.len());
self.root(x) == self.root(y)
}
pub fn unite(&mut self, x: usize, y: usize) -> Option<(usize, usize)> {
assert!(x < self.p.len() && y < self.p.len());
let mut x = self.root(x);
let mut y = self.root(y);
if x == y {
return None;
}
if self.p[x] > self.p[y] {
std::mem::swap(&mut x, &mut y);
}
self.p[x] += self.p[y];
self.p[y] = x as i32;
Some((x, y))
}
pub fn parent(&self, x: usize) -> Option<usize> {
assert!(x < self.p.len());
let p = self.p[x];
if p >= 0 {
Some(p as usize)
} else {
None
}
}
pub fn sum<F>(&self, mut x: usize, mut f: F) -> usize
where
F: FnMut(usize),
{
while let Some(p) = self.parent(x) {
f(x);
x = p;
}
x
}
pub fn size(&self, x: usize) -> usize {
assert!(x < self.p.len());
let r = self.root(x);
(-self.p[r]) as usize
}
}
//---------- end union_find ----------
akakimidori