#![allow(non_snake_case)] #![allow(unused_imports)] #![allow(unused_macros)] #![allow(clippy::comparison_chain)] #![allow(clippy::nonminimal_bool)] #![allow(clippy::neg_multiply)] #![allow(clippy::type_complexity)] #![allow(clippy::needless_range_loop)] #![allow(dead_code)] use std::{ cmp::Reverse, collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, VecDeque}, }; mod rnd { static mut S: usize = 0; static MAX: usize = 1e9 as usize; #[inline] pub fn init(seed: usize) { unsafe { if seed == 0 { let t = std::time::SystemTime::now() .duration_since(std::time::UNIX_EPOCH) .unwrap() .as_secs() as usize; S = t } else { S = seed; } } } #[inline] pub fn gen() -> usize { unsafe { if S == 0 { init(0); } S ^= S << 7; S ^= S >> 9; S } } #[inline] pub fn gen_range(a: usize, b: usize) -> usize { gen() % (b - a) + a } #[inline] pub fn gen_bool() -> bool { gen() & 1 == 1 } #[inline] pub fn gen_range_isize(a: usize) -> isize { let mut x = (gen() % a) as isize; if gen_bool() { x *= -1; } x } #[inline] pub fn gen_range_neg_wrapping(a: usize) -> usize { let mut x = gen() % a; if gen_bool() { x = x.wrapping_neg(); } x } #[inline] pub fn gen_float() -> f64 { ((gen() % MAX) as f64) / MAX as f64 } } #[derive(Debug, Clone)] struct TimeKeeper { start_time: std::time::Instant, time_threshold: f64, } impl TimeKeeper { fn new(time_threshold: f64) -> Self { TimeKeeper { start_time: std::time::Instant::now(), time_threshold, } } #[inline] fn isTimeOver(&self) -> bool { let elapsed_time = self.start_time.elapsed().as_nanos() as f64 * 1e-9; #[cfg(feature = "local")] { elapsed_time * 1.5 >= self.time_threshold } #[cfg(not(feature = "local"))] { elapsed_time >= self.time_threshold } } #[inline] fn get_time(&self) -> f64 { let elapsed_time = self.start_time.elapsed().as_nanos() as f64 * 1e-9; #[cfg(feature = "local")] { elapsed_time * 1.5 } #[cfg(not(feature = "local"))] { elapsed_time } } } const DIJ4: [(usize, usize); 4] = [(!0, 0), (0, !0), (1, 0), (0, 1)]; #[derive(Debug, Clone)] struct State { N: usize, A: Vec>, B: Vec>, b: usize, cost: usize, building_num: usize, bomb_store_num: usize, building_destruct_cnt: usize, bomb_store_destruct_cnt: usize, explosion_positions: Vec<(usize, usize, usize)>, actions: Vec<(usize, usize)>, } impl State { fn new(N: usize) -> Self { input! { A: [chars; N] } let mut building_num = 0; let mut bomb_store_num = 0; for i in 0..N { for j in 0..N { if A[i][j] == '#' { building_num += 1; } else if A[i][j] == '@' { bomb_store_num += 1; } } } State { N, A: A.clone(), B: A, b: 0, cost: 0, building_num, bomb_store_num, building_destruct_cnt: 0, bomb_store_destruct_cnt: 0, explosion_positions: vec![], actions: vec![], } } fn init(&mut self, bombs: &[Bomb]) -> (usize, usize, Vec) { let mut store_positions = vec![]; for y in 0..self.N { for x in 0..self.N { if self.A[y][x] == '@' { store_positions.push((y, x, 0)); } } } let (idx, a, c) = self.bfs(0, 0, &store_positions); self.actions.extend(a); self.cost += c; let (sy, sx, _) = store_positions[idx]; let mut used = vec![false; bombs.len()]; let mut A = self.A.clone(); for _ in 0..10 { let mut candidate = vec![]; for i in 0..bombs.len() { if used[i] { continue; } let mut destruct_cnt = 0; for (a, b) in bombs[i].AB.iter() { let ny = sy as isize + a; let nx = sx as isize + b; if ny < 0 || self.N as isize <= ny || nx < 0 || self.N as isize <= nx { continue; } let ny = ny as usize; let nx = nx as usize; if self.B[ny][nx] != '.' { destruct_cnt += 1; } } candidate.push((destruct_cnt, i)); } candidate.sort_by_key(|x| Reverse(x.0)); let (_, idx) = candidate[0]; let before_A = A.clone(); for (a, b) in bombs[idx].AB.iter() { let ny = sy as isize + a; let nx = sx as isize + b; if ny < 0 || self.N as isize <= ny || nx < 0 || self.N as isize <= nx { continue; } let ny = ny as usize; let nx = nx as usize; A[ny][nx] = '.'; } let mut store_cnt = 0; for y in 0..self.N { for x in 0..self.N { if A[y][x] == '@' { store_cnt += 1 } } } if store_cnt == 0 { A = before_A; break; } else { used[idx] = true; } } let mut building_cnt = 0; let mut bomb_store_cnt = 0; for y in 0..self.N { for x in 0..self.N { if A[y][x] == '#' { building_cnt += 1 } else if A[y][x] == '@' { bomb_store_cnt += 1; } } } self.building_destruct_cnt = self.building_num - building_cnt; self.bomb_store_destruct_cnt = self.bomb_store_num - bomb_store_cnt; self.A = A.clone(); self.B = A; (sy, sx, used) } fn destruct_A(&mut self, y: usize, x: usize, bomb: &Bomb) { for (a, b) in bomb.AB.iter() { let ny = y as isize + a; let nx = x as isize + b; if ny < 0 || self.N as isize <= ny || nx < 0 || self.N as isize <= nx { continue; } let ny = ny as usize; let nx = nx as usize; self.A[ny][nx] = '.'; } } fn check_destruct_A(&mut self, y: usize, x: usize, bomb: &Bomb) -> bool { let mut A = self.A.clone(); for (a, b) in bomb.AB.iter() { let ny = y as isize + a; let nx = x as isize + b; if ny < 0 || self.N as isize <= ny || nx < 0 || self.N as isize <= nx { continue; } let ny = ny as usize; let nx = nx as usize; A[ny][nx] = '.'; } let mut store_cnt = 0; for y in 0..self.N { for x in 0..self.N { if A[y][x] == '@' { store_cnt += 1; } } } store_cnt > 0 } fn destruct_B(&mut self, y: usize, x: usize, bomb: &Bomb) { for (a, b) in bomb.AB.iter() { let ny = y as isize + a; let nx = x as isize + b; if ny < 0 || self.N as isize <= ny || nx < 0 || self.N as isize <= nx { continue; } let ny = ny as usize; let nx = nx as usize; if self.B[ny][nx] == '#' { self.B[ny][nx] = '.'; self.building_destruct_cnt += 1; } else if self.B[ny][nx] == '@' { self.B[ny][nx] = '.'; self.bomb_store_destruct_cnt += 1; } } } fn is_destructed(&self) -> bool { self.building_destruct_cnt == self.building_num && self.bomb_store_destruct_cnt == self.bomb_store_num } fn get_explosion_positions(&mut self, bombs: &[Bomb]) { while !self.is_destructed() { let mut candidate = vec![]; for y in 0..self.N { for x in 0..self.N { for (i, bomb) in bombs.iter().enumerate() { let mut destruct_cnt = 0; for (a, b) in bomb.AB.iter() { let ny = y as isize + a; let nx = x as isize + b; if ny < 0 || self.N as isize <= ny || nx < 0 || self.N as isize <= nx { continue; } let ny = ny as usize; let nx = nx as usize; if self.B[ny][nx] != '.' { destruct_cnt += 1; } } candidate.push((destruct_cnt, y, x, i)); } } } candidate.sort_by_key(|x| Reverse(x.0)); let (_, y, x, idx) = candidate[0]; self.explosion_positions.push((y, x, idx + 1)); self.destruct_B(y, x, &bombs[idx]); } } fn action(&mut self, mut py: usize, mut px: usize, bombs: &[Bomb], used: &[bool]) { // buy for i in 0..used.len() { if used[i] { self.actions.push((2, i + 1)); self.b += 1; self.cost += bombs[i].C; } } let goal = self.explosion_positions.clone(); let (idx, _, _) = self.bfs(py, px, &goal); let ok = self.check_destruct_A(py, px, &bombs[goal[idx].2 - 1]); if ok { self.actions.push((2, goal[idx].2)); self.b += 1; self.cost += bombs[goal[idx].2 - 1].C; } else { for &(_, _, idx) in self.explosion_positions.iter() { self.actions.push((2, idx)); self.b += 1; self.cost += bombs[idx - 1].C; } } for i in 0..used.len() { if used[i] { self.actions.push((3, i + 1)); self.destruct_A(py, px, &bombs[i]); self.b -= 1; } } if ok { let (idx, a, c) = self.bfs(py, px, &goal); let pos = goal[idx]; py = pos.0; px = pos.1; let bomb_idx = pos.2; self.explosion_positions.remove(idx); self.actions.extend(a); self.cost += c; // explosion self.actions.push((3, bomb_idx)); self.destruct_A(py, px, &bombs[bomb_idx - 1]); self.b -= 1; } while !self.explosion_positions.is_empty() { if self.b == 0 { let mut store_positions = vec![]; for y in 0..self.N { for x in 0..self.N { if self.A[y][x] == '@' { store_positions.push((y, x, 0)); } } } let (idx, a, c) = self.bfs(py, px, &store_positions); self.actions.extend(a); self.cost += c; let (sy, sx, _) = store_positions[idx]; py = sy; px = sx; } let goal = self.explosion_positions.clone(); let (idx, a, c) = self.bfs(py, px, &goal); let ok = self.check_destruct_A(goal[idx].0, goal[idx].1, &bombs[goal[idx].2 - 1]); if ok { // buy self.actions.push((2, goal[idx].2)); self.b += 1; self.cost += bombs[goal[idx].2 - 1].C; let pos = goal[idx]; py = pos.0; px = pos.1; let bomb_idx = pos.2; self.explosion_positions.remove(idx); self.actions.extend(a); self.cost += c; // explosion self.actions.push((3, bomb_idx)); self.destruct_A(py, px, &bombs[bomb_idx - 1]); self.b -= 1; } else { for &(_, _, idx) in self.explosion_positions.iter() { self.actions.push((2, idx)); self.b += 1; self.cost += bombs[idx - 1].C; } break; } } while !self.explosion_positions.is_empty() { let goal = self.explosion_positions.clone(); let (idx, a, c) = self.bfs(py, px, &goal); // eprintln!("{}", self.cost); let pos = goal[idx]; py = pos.0; px = pos.1; let bomb_idx = pos.2; self.explosion_positions.remove(idx); self.actions.extend(a); self.cost += c; // explosion self.actions.push((3, bomb_idx)); self.destruct_A(py, px, &bombs[bomb_idx - 1]); self.b -= 1; } } fn bfs( &mut self, sy: usize, sx: usize, goal: &[(usize, usize, usize)], ) -> (usize, Vec<(usize, usize)>, usize) { let INF = 1_usize << 60; let mut dist = vec![vec![INF; self.N]; self.N]; let mut Q = BinaryHeap::new(); dist[sy][sx] = 0; Q.push((Reverse(dist[sy][sx]), sy, sx)); while let Some((Reverse(d), py, px)) = Q.pop() { if dist[py][px] != d { continue; } for &(dy, dx) in &DIJ4 { let ny = py.wrapping_add(dy); let nx = px.wrapping_add(dx); if ny >= self.N || nx >= self.N { continue; } let mut c = (self.b + 1) * (self.b + 1); if self.A[ny][nx] != '.' { c *= 2; } if dist[py][px] + c < dist[ny][nx] { dist[ny][nx] = dist[py][px] + c; Q.push((Reverse(dist[ny][nx]), ny, nx)) } } } let mut candidate = vec![]; for &(gy, gx, _) in goal.iter() { candidate.push((dist[gy][gx], gy, gx)); } candidate.sort(); let mut mp: HashMap<(usize, usize), char> = HashMap::new(); mp.insert((1, 0), 'U'); mp.insert((!0, 0), 'D'); mp.insert((0, 1), 'L'); mp.insert((0, !0), 'R'); let (_, mut gy, mut gx) = candidate[0]; let mut goal_idx = 0; for (i, &(y, x, _)) in goal.iter().enumerate() { if gy == y && gx == x { goal_idx = i; break; } } let mut a = vec![]; let mut cost = 0; while sy != gy || sx != gx { for &(dy, dx) in &DIJ4 { let ny = gy.wrapping_add(dy); let nx = gx.wrapping_add(dx); if ny >= self.N || nx >= self.N { continue; } let mut c = (self.b + 1) * (self.b + 1); if self.A[gy][gx] != '.' { c *= 2; } if dist[ny][nx] + c == dist[gy][gx] { cost += c; a.push((1, mp[&(dy, dx)] as usize)); gy = ny; gx = nx; break; } } } a.reverse(); (goal_idx, a, cost) } fn score(&self) -> usize { max!(10, (1e12 as usize) / (1e4 as usize + self.cost)) } fn output(&self) { eprintln!("Cost: {}", self.cost); eprintln!("Score: {}", self.score()); println!("{}", self.actions.len()); for (t, x) in self.actions.iter() { if *t == 1 { let dir = (*x as u8) as char; println!("{} {}", t, dir); } else { println!("{} {}", t, x); } } } } #[derive(Debug, Clone)] struct Bomb { C: usize, L: usize, AB: Vec<(isize, isize)>, } impl Bomb { fn new(C: usize, L: usize) -> Self { input! { AB: [(isize, isize); L] } Bomb { C, L, AB } } } #[derive(Default)] struct Solver {} impl Solver { fn solve(&mut self) { input! { N: usize, M: usize, } let mut state = State::new(N); let mut bombs = vec![]; for _ in 0..M { input! { C: usize, L: usize } let bomb = Bomb::new(C, L); bombs.push(bomb); } let (sy, sx, used) = state.init(&bombs); state.get_explosion_positions(&bombs); state.action(sy, sx, &bombs, &used); state.output(); } } #[macro_export] macro_rules! max { ($x: expr) => ($x); ($x: expr, $( $y: expr ),+) => { std::cmp::max($x, max!($( $y ),+)) } } #[macro_export] macro_rules! min { ($x: expr) => ($x); ($x: expr, $( $y: expr ),+) => { std::cmp::min($x, min!($( $y ),+)) } } fn main() { std::thread::Builder::new() .stack_size(128 * 1024 * 1024) .spawn(|| Solver::default().solve()) .unwrap() .join() .unwrap(); } fn join_to_string(v: &[T], sep: &str) -> String { v.iter() .fold("".to_string(), |s, x| s + x.to_string().as_str() + sep) } #[macro_export] macro_rules! input { () => {}; (mut $var:ident: $t:tt, $($rest:tt)*) => { let mut $var = __input_inner!($t); input!($($rest)*) }; ($var:ident: $t:tt, $($rest:tt)*) => { let $var = __input_inner!($t); input!($($rest)*) }; (mut $var:ident: $t:tt) => { let mut $var = __input_inner!($t); }; ($var:ident: $t:tt) => { let $var = __input_inner!($t); }; } #[macro_export] macro_rules! __input_inner { (($($t:tt),*)) => { ($(__input_inner!($t)),*) }; ([$t:tt; $n:expr]) => { (0..$n).map(|_| __input_inner!($t)).collect::>() }; ([$t:tt]) => {{ let n = __input_inner!(usize); (0..n).map(|_| __input_inner!($t)).collect::>() }}; (chars) => { __input_inner!(String).chars().collect::>() }; (bytes) => { __input_inner!(String).into_bytes() }; (usize1) => { __input_inner!(usize) - 1 }; ($t:ty) => { $crate::read::<$t>() }; } #[macro_export] macro_rules! println { () => { $crate::write(|w| { use std::io::Write; std::writeln!(w).unwrap() }) }; ($($arg:tt)*) => { $crate::write(|w| { use std::io::Write; std::writeln!(w, $($arg)*).unwrap() }) }; } #[macro_export] macro_rules! print { ($($arg:tt)*) => { $crate::write(|w| { use std::io::Write; std::write!(w, $($arg)*).unwrap() }) }; } #[macro_export] macro_rules! flush { () => { $crate::write(|w| { use std::io::Write; w.flush().unwrap() }) }; } pub fn read() -> T where T: std::str::FromStr, T::Err: std::fmt::Debug, { use std::cell::RefCell; use std::io::*; thread_local! { pub static STDIN: RefCell> = RefCell::new(stdin().lock()); } STDIN.with(|r| { let mut r = r.borrow_mut(); let mut s = vec![]; loop { let buf = r.fill_buf().unwrap(); if buf.is_empty() { break; } if let Some(i) = buf.iter().position(u8::is_ascii_whitespace) { s.extend_from_slice(&buf[..i]); r.consume(i + 1); if !s.is_empty() { break; } } else { s.extend_from_slice(buf); let n = buf.len(); r.consume(n); } } std::str::from_utf8(&s).unwrap().parse().unwrap() }) } pub fn write(f: F) where F: FnOnce(&mut std::io::BufWriter), { use std::cell::RefCell; use std::io::*; thread_local! { pub static STDOUT: RefCell>> = RefCell::new(BufWriter::new(stdout().lock())); } STDOUT.with(|w| f(&mut w.borrow_mut())) }