結果
問題 | No.2498 OX Operations |
ユーザー |
![]() |
提出日時 | 2023-10-06 22:18:19 |
言語 | Rust (1.83.0 + proconio) |
結果 |
RE
|
実行時間 | - |
コード長 | 13,045 bytes |
コンパイル時間 | 15,535 ms |
コンパイル使用メモリ | 400,476 KB |
実行使用メモリ | 28,604 KB |
最終ジャッジ日時 | 2024-07-26 16:32:02 |
合計ジャッジ時間 | 23,030 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 RE * 1 |
other | AC * 21 RE * 2 |
コンパイルメッセージ
warning: unused import: `std::io::Write` --> src/main.rs:1:5 | 1 | use std::io::Write; | ^^^^^^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: type alias `Set` is never used --> src/main.rs:5:6 | 5 | type Set<T> = BTreeSet<T>; | ^^^ | = note: `#[warn(dead_code)]` on by default warning: type alias `Deque` is never used --> src/main.rs:6:6 | 6 | type Deque<T> = VecDeque<T>; | ^^^^^
ソースコード
use std::io::Write;use std::collections::*;type Map<K, V> = BTreeMap<K, V>;type Set<T> = BTreeSet<T>;type Deque<T> = VecDeque<T>;fn main() {input! {n: usize,q: usize,m: [usize; n],ask: [(String, usize1, usize, usize); q],}let mut seg = SegmentTreePURQ::new(q, [0, !0], |a, b| {let mut c = [0; 2];for i in 0..30 {c[0] |= b[a[0] >> i & 1] & (1 << i);c[1] |= b[a[1] >> i & 1] & (1 << i);}c});let mut add = vec![vec![]; n];let mut sub = vec![vec![]; n + 1];for (i, (c, l, r, x)) in ask.into_iter().enumerate() {add[l].push((i, x, c == "o"));sub[r].push(i);}let mut memo = Map::new();memo.insert(0, M::one());for (i, m) in m.iter().enumerate() {for &(i, x, or) in add[i].iter() {let mut c = [0, !0];if or {c[0] = x;} else {c[0] ^= x;c[1] ^= x;}seg.update(i, c);}for &i in sub[i].iter() {seg.update(i, [0, !0]);}let func = seg.find(0, q);let mut dp = Map::new();dp.insert((0, true), M::one());for j in 0..30 {let m = m >> j & 1;let mut next = Map::new();for ((cnt, less), way) in dp {for (k, f) in func.iter().enumerate() {let cnt = cnt + (*f >> j & 1);let less = k < m || (k == m && less);*next.entry((cnt, less)).or_insert(M::zero()) += way;}}dp = next;}dp = dp.into_iter().filter(|(k, _)| k.1).collect();let mut next = Map::new();for (cnt, way) in memo {for (&(c, _), &w) in dp.iter() {*next.entry(cnt.max(c)).or_insert(M::zero()) += way * w;}}memo = next;}let ans = memo.iter().fold(M::zero(), |s, (k, v)| s + M::from(*k) * *v);println!("{}", ans);}// ---------- 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 segment tree Point Update Range Query ----------pub struct SegmentTreePURQ<T, F> {n: usize,size: usize,data: Vec<T>,e: T,op: F,}impl<T, F> SegmentTreePURQ<T, F>whereT: Clone,F: Fn(&T, &T) -> T,{pub fn new(n: usize, e: T, op: F) -> Self {assert!(n > 0);let size = n.next_power_of_two();let data = vec![e.clone(); 2 * size];SegmentTreePURQ {n,size,data,e,op,}}pub fn update_tmp(&mut self, x: usize, v: T) {assert!(x < self.n);self.data[x + self.size] = v;}pub fn update_all(&mut self) {for i in (1..self.size).rev() {self.data[i] = (self.op)(&self.data[2 * i], &self.data[2 * i + 1]);}}pub fn update(&mut self, x: usize, v: T) {assert!(x < self.n);let mut x = x + self.size;self.data[x] = v;x >>= 1;while x > 0 {self.data[x] = (self.op)(&self.data[2 * x], &self.data[2 * x + 1]);x >>= 1;}}pub fn find(&self, l: usize, r: usize) -> T {assert!(l <= r && r <= self.n);if l == r {return self.e.clone();}let mut l = self.size + l;let mut r = self.size + r;let mut x = self.e.clone();let mut y = self.e.clone();while l < r {if l & 1 == 1 {x = (self.op)(&x, &self.data[l]);l += 1;}if r & 1 == 1 {r -= 1;y = (self.op)(&self.data[r], &y);}l >>= 1;r >>= 1;}(self.op)(&x, &y)}pub fn max_right<P>(&self, l: usize, f: P) -> usizewhereP: Fn(&T) -> bool,{assert!(l <= self.n);assert!(f(&self.e));if l == self.n {return self.n;}let mut l = l + self.size;let mut sum = self.e.clone();while {l >>= l.trailing_zeros();let v = (self.op)(&sum, &self.data[l]);if !f(&v) {while l < self.size {l <<= 1;let v = (self.op)(&sum, &self.data[l]);if f(&v) {sum = v;l += 1;}}return l - self.size;}sum = v;l += 1;l.count_ones() > 1} {}self.n}pub fn min_left<P>(&self, r: usize, f: P) -> usizewhereP: Fn(&T) -> bool,{assert!(r <= self.n);assert!(f(&self.e));if r == 0 {return 0;}let mut r = r + self.size;let mut sum = self.e.clone();while {r -= 1;while r > 1 && r & 1 == 1 {r >>= 1;}let v = (self.op)(&self.data[r], &sum);if !f(&v) {while r < self.size {r = 2 * r + 1;let v = (self.op)(&self.data[r], &sum);if f(&v) {sum = v;r -= 1;}}return r + 1 - self.size;}sum = v;(r & (!r + 1)) != r} {}0}}// ---------- end segment tree Point Update Range Query ----------// ---------- begin modint ----------use std::marker::*;use std::ops::*;pub trait Modulo {fn modulo() -> u32;}pub struct ConstantModulo<const M: u32>;impl<const M: u32> Modulo for ConstantModulo<{ M }> {fn modulo() -> u32 {M}}pub struct ModInt<T>(u32, PhantomData<T>);impl<T> Clone for ModInt<T> {fn clone(&self) -> Self {Self::new_unchecked(self.0)}}impl<T> Copy for ModInt<T> {}impl<T: Modulo> Add for ModInt<T> {type Output = ModInt<T>;fn add(self, rhs: Self) -> Self::Output {let mut v = self.0 + rhs.0;if v >= T::modulo() {v -= T::modulo();}Self::new_unchecked(v)}}impl<T: Modulo> AddAssign for ModInt<T> {fn add_assign(&mut self, rhs: Self) {*self = *self + rhs;}}impl<T: Modulo> Sub for ModInt<T> {type Output = ModInt<T>;fn sub(self, rhs: Self) -> Self::Output {let mut v = self.0 - rhs.0;if self.0 < rhs.0 {v += T::modulo();}Self::new_unchecked(v)}}impl<T: Modulo> SubAssign for ModInt<T> {fn sub_assign(&mut self, rhs: Self) {*self = *self - rhs;}}impl<T: Modulo> Mul for ModInt<T> {type Output = ModInt<T>;fn mul(self, rhs: Self) -> Self::Output {let v = self.0 as u64 * rhs.0 as u64 % T::modulo() as u64;Self::new_unchecked(v as u32)}}impl<T: Modulo> MulAssign for ModInt<T> {fn mul_assign(&mut self, rhs: Self) {*self = *self * rhs;}}impl<T: Modulo> Neg for ModInt<T> {type Output = ModInt<T>;fn neg(self) -> Self::Output {if self.is_zero() {Self::zero()} else {Self::new_unchecked(T::modulo() - self.0)}}}impl<T> std::fmt::Display for ModInt<T> {fn fmt<'a>(&self, f: &mut std::fmt::Formatter<'a>) -> std::fmt::Result {write!(f, "{}", self.0)}}impl<T> std::fmt::Debug for ModInt<T> {fn fmt<'a>(&self, f: &mut std::fmt::Formatter<'a>) -> std::fmt::Result {write!(f, "{}", self.0)}}impl<T> Default for ModInt<T> {fn default() -> Self {Self::zero()}}impl<T: Modulo> std::str::FromStr for ModInt<T> {type Err = std::num::ParseIntError;fn from_str(s: &str) -> Result<Self, Self::Err> {let val = s.parse::<u32>()?;Ok(ModInt::new(val))}}impl<T: Modulo> From<usize> for ModInt<T> {fn from(val: usize) -> ModInt<T> {ModInt::new_unchecked((val % T::modulo() as usize) as u32)}}impl<T: Modulo> From<u64> for ModInt<T> {fn from(val: u64) -> ModInt<T> {ModInt::new_unchecked((val % T::modulo() as u64) as u32)}}impl<T: Modulo> From<i64> for ModInt<T> {fn from(val: i64) -> ModInt<T> {let mut v = ((val % T::modulo() as i64) + T::modulo() as i64) as u32;if v >= T::modulo() {v -= T::modulo();}ModInt::new_unchecked(v)}}impl<T> ModInt<T> {pub fn new_unchecked(n: u32) -> Self {ModInt(n, PhantomData)}pub fn zero() -> Self {ModInt::new_unchecked(0)}pub fn one() -> Self {ModInt::new_unchecked(1)}pub fn is_zero(&self) -> bool {self.0 == 0}}impl<T: Modulo> ModInt<T> {pub fn new(d: u32) -> Self {ModInt::new_unchecked(d % T::modulo())}pub fn pow(&self, mut n: u64) -> Self {let mut t = Self::one();let mut s = *self;while n > 0 {if n & 1 == 1 {t *= s;}s *= s;n >>= 1;}t}pub fn inv(&self) -> Self {assert!(!self.is_zero());self.pow(T::modulo() as u64 - 2)}pub fn fact(n: usize) -> Self {(1..=n).fold(Self::one(), |s, a| s * Self::from(a))}pub fn perm(n: usize, k: usize) -> Self {if k > n {return Self::zero();}((n - k + 1)..=n).fold(Self::one(), |s, a| s * Self::from(a))}pub fn binom(n: usize, k: usize) -> Self {if k > n {return Self::zero();}let k = k.min(n - k);let mut nu = Self::one();let mut de = Self::one();for i in 0..k {nu *= Self::from(n - i);de *= Self::from(i + 1);}nu * de.inv()}}// ---------- end modint ----------// ---------- begin precalc ----------pub struct Precalc<T> {fact: Vec<ModInt<T>>,ifact: Vec<ModInt<T>>,inv: Vec<ModInt<T>>,}impl<T: Modulo> Precalc<T> {pub fn new(n: usize) -> Precalc<T> {let mut inv = vec![ModInt::one(); n + 1];let mut fact = vec![ModInt::one(); n + 1];let mut ifact = vec![ModInt::one(); n + 1];for i in 2..=n {fact[i] = fact[i - 1] * ModInt::new_unchecked(i as u32);}ifact[n] = fact[n].inv();if n > 0 {inv[n] = ifact[n] * fact[n - 1];}for i in (1..n).rev() {ifact[i] = ifact[i + 1] * ModInt::new_unchecked((i + 1) as u32);inv[i] = ifact[i] * fact[i - 1];}Precalc { fact, ifact, inv }}pub fn inv(&self, n: usize) -> ModInt<T> {assert!(n > 0);self.inv[n]}pub fn fact(&self, n: usize) -> ModInt<T> {self.fact[n]}pub fn ifact(&self, n: usize) -> ModInt<T> {self.ifact[n]}pub fn perm(&self, n: usize, k: usize) -> ModInt<T> {if k > n {return ModInt::zero();}self.fact[n] * self.ifact[n - k]}pub fn binom(&self, n: usize, k: usize) -> ModInt<T> {if k > n {return ModInt::zero();}self.fact[n] * self.ifact[k] * self.ifact[n - k]}}// ---------- end precalc ----------type M = ModInt<ConstantModulo<998_244_353>>;