結果
問題 | No.5019 Hakai Project |
ユーザー | rhoo |
提出日時 | 2023-11-19 09:12:16 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 2,921 ms / 3,000 ms |
コード長 | 42,003 bytes |
コンパイル時間 | 6,446 ms |
コンパイル使用メモリ | 225,052 KB |
実行使用メモリ | 171,776 KB |
スコア | 2,845,814,251 |
最終ジャッジ日時 | 2023-11-19 09:14:58 |
合計ジャッジ時間 | 160,676 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge15 |
純コード判定しない問題か言語 |
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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 | 2,919 ms
152,960 KB |
testcase_01 | AC | 2,918 ms
149,376 KB |
testcase_02 | AC | 2,921 ms
171,776 KB |
testcase_03 | AC | 2,917 ms
113,920 KB |
testcase_04 | AC | 2,919 ms
150,528 KB |
testcase_05 | AC | 2,917 ms
131,584 KB |
testcase_06 | AC | 2,917 ms
111,360 KB |
testcase_07 | AC | 2,919 ms
152,960 KB |
testcase_08 | AC | 2,917 ms
134,784 KB |
testcase_09 | AC | 2,918 ms
141,824 KB |
testcase_10 | AC | 2,915 ms
105,728 KB |
testcase_11 | AC | 2,918 ms
135,552 KB |
testcase_12 | AC | 2,918 ms
131,712 KB |
testcase_13 | AC | 2,918 ms
129,408 KB |
testcase_14 | AC | 2,918 ms
137,728 KB |
testcase_15 | AC | 2,917 ms
107,136 KB |
testcase_16 | AC | 2,918 ms
134,016 KB |
testcase_17 | AC | 2,918 ms
142,464 KB |
testcase_18 | AC | 2,918 ms
127,360 KB |
testcase_19 | AC | 2,918 ms
134,912 KB |
testcase_20 | AC | 2,919 ms
139,520 KB |
testcase_21 | AC | 2,920 ms
143,872 KB |
testcase_22 | AC | 2,918 ms
126,976 KB |
testcase_23 | AC | 2,919 ms
137,600 KB |
testcase_24 | AC | 2,920 ms
170,496 KB |
testcase_25 | AC | 2,918 ms
132,096 KB |
testcase_26 | AC | 2,919 ms
145,536 KB |
testcase_27 | AC | 2,920 ms
155,776 KB |
testcase_28 | AC | 2,916 ms
121,600 KB |
testcase_29 | AC | 2,918 ms
121,600 KB |
testcase_30 | AC | 2,918 ms
120,448 KB |
testcase_31 | AC | 2,917 ms
108,800 KB |
testcase_32 | AC | 2,917 ms
120,832 KB |
testcase_33 | AC | 2,919 ms
156,544 KB |
testcase_34 | AC | 2,919 ms
136,960 KB |
testcase_35 | AC | 2,918 ms
128,000 KB |
testcase_36 | AC | 2,917 ms
122,368 KB |
testcase_37 | AC | 2,916 ms
107,392 KB |
testcase_38 | AC | 2,915 ms
92,800 KB |
testcase_39 | AC | 2,920 ms
168,832 KB |
testcase_40 | AC | 2,919 ms
146,304 KB |
testcase_41 | AC | 2,919 ms
158,976 KB |
testcase_42 | AC | 2,917 ms
124,672 KB |
testcase_43 | AC | 2,920 ms
166,272 KB |
testcase_44 | AC | 2,918 ms
135,040 KB |
testcase_45 | AC | 2,916 ms
113,920 KB |
testcase_46 | AC | 2,921 ms
142,592 KB |
testcase_47 | AC | 2,920 ms
140,032 KB |
testcase_48 | AC | 2,917 ms
130,176 KB |
testcase_49 | AC | 2,920 ms
147,200 KB |
コンパイルメッセージ
warning: unused variable: `score` --> Main.rs:24:14 | 24 | let (ans,score)=solve_tsp(input,solver.state.ans); | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` | = note: `#[warn(unused_variables)]` on by default warning: variable `valid` is assigned to, but never used --> Main.rs:661:17 | 661 | let mut valid=0; | ^^^^^ | = note: consider using `_valid` instead warning: constant `M` is never used --> Main.rs:713:7 | 713 | const M:usize=20; | ^ | = note: `#[warn(dead_code)]` on by default warning: field `ratio` is never read --> Main.rs:752:5 | 742 | struct Input{ | ----- field in this struct ... 752 | ratio:f64, | ^^^^^ warning: field `dx` is never read --> Main.rs:1004:5 | 1000 | struct StaticGrid<T,const N:usize,const M:usize,const SIZE:usize>{ | ---------- field in this struct ... 1004 | dx:[usize;8], | ^^ | = note: `StaticGrid` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis warning: method `set_wall` is never used --> Main.rs:1043:8 | 1006 | impl<T,const N:usize,const M:usize,const SIZE:usize> StaticGrid<T,N,M,SIZE>{ | --------------------------------------------------------------------------- method in this implementation ... 1043 | fn set_wall(&mut self,p:usize,f:bool){ | ^^^^^^^^ warning: methods `dot`, `det`, `abs2`, and `rot90` are never used --> Main.rs:1104:8 | 1095 | impl P{ | ------ methods in this implementation ... 1104 | fn dot(self,a:P)->i64{ | ^^^ ... 1108 | fn det(self,a:P)->i64{ | ^^^ ... 1116 | fn abs2(self)->i64{ | ^^^^ ... 1121 | fn rot90(self)->P{ | ^^^^^ warning: method `clear` is never used --> Main.rs:1318:8 | 1271 | impl IndexSet{ | ------------- method in this i
ソースコード
#![allow(non_snake_case)] // todo: tspで得られた解を自明に有効な近傍のみでlocal_search fn main(){ get_time(); let input=Input::new(); let ans=solve(&input); eprintln!("timer = {}",unsafe{TIME}); write_output(&ans); } fn solve(input:&Input)->Vec<Cmd>{ let state=State::new(input); let mut solver=SA::new(state); solver.solve(input,2.5); // todo let (ans,score)=solve_tsp(input,solver.state.ans); eprintln!("score = {}",score); ans } fn solve_tsp(input:&Input,a:Vec<usize>)->(Vec<Cmd>,i64){ let start=a.len(); let goal=a.len()+1; let med=a.len()+2; const INF:i64=i64::MAX/32; let mut dist=vec![vec![0;a.len()+3];a.len()+3]; for i in 0..a.len(){ for j in 0..a.len(){ dist[i][j]=(input.pos[a[i]].0-input.pos[a[j]].0).manh(); } } for i in 0..a.len(){ dist[i][start]=(input.pos[a[i]].0-START).manh(); dist[start][i]=dist[i][start]; dist[i][med]=INF; dist[med][i]=INF; } let mut a={ let route=solve_tsp_greedy(&dist,start); let mut route=solve_tsp_ils(&dist,route); assert!(&route[..3]==&[start,med,goal] || &route[route.len()-3..]==&[goal,med,start]); if &route[..3]==&[start,med,goal]{ let idx=route.len()-1; route[1..idx].reverse(); } let mut new=vec![!0;a.len()]; for (i,&n) in route[1..route.len()-3].iter().enumerate(){ new[i]=a[n]; } new }; let mut DP=InsertionDP::new(input,&a); let mut score=DP.solve(input,a.iter().copied()); let dist=|a:usize,b:usize|->i64{ if a&b==!0{ INF } else if a==!0{ (START-input.pos[b].0).manh() } else if b==!0{ 0 } else{ (input.pos[a].0-input.pos[b].0).manh() } }; while get_time()<=2.9{ // todo let (i,j)=(0..10) // todo .map(|_|{ let mut i=rnd::next()%(a.len()+1); let mut j; loop{ j=rnd::range_skip(0,a.len()+1,i); let abs=(i as i64-j as i64).abs(); if 1<abs{ break; } } if i>j{ (i,j)=(j,i); } (i,j) }).min_by_key(|&(i,j)|{ let (i0,i1)=(a.get(i-1).copied().unwrap_or(!0),a[i]); let (j0,j1)=(a[j-1],a.get(j).copied().unwrap_or(!0)); dist(i0,j1)+dist(i1,j0)-dist(i0,i1)-dist(j0,j1) }).unwrap(); // todo: 焼きなまし? let new=DP.solve(input,a[..i].iter().chain(a[i..j].iter().rev()).chain(a[j..].iter()).copied()); if score>=new{ score=new; a[i..j].reverse(); } } DP.solve(input,a.iter().copied()); let res=DP.restore(); let mut route=vec![(START,!0,0,vec![])]; for i in 0..a.len(){ if res[i]!=!0{ route.push((input.shop[res[i]],!0,0,vec![])); } route.push((input.pos[a[i]].0,a[i],0,vec![])); } let mut hold=vec![]; for i in (0..route.len()).rev(){ route[i].2=(hold.len() as i64+1).pow(2); if route[i].1==!0{ if i==0{ assert!(hold.is_empty()); } std::mem::swap(&mut hold,&mut route[i].3); } else{ hold.push(input.pos[route[i].1].1); } } let mut dij=Dijkstra::new(); let mut grid=input.is_block.clone(); let mut score=a.iter().map(|&n|input.cost[n]).sum::<i64>(); let mut ret=vec![]; let mut rest=IndexSet::new(input.shop.len()); rest.fill(); assert!(route[0].1==!0 && route[0].3.is_empty()); for w in route.windows(2){ let (u,v)=(w[0].0,w[1].0); let (u,v)=(input.grid.id(u),input.grid.id(v)); score+=w[0].2*dij.solve(input,&grid,u,v); if w[1].1!=!0{ for &n in &input.edge[w[1].1].1{ grid[input.to_id[n]]=false; } for &m in &input.shop_edge[w[1].1]{ if rest.contains(m){ rest.del(m); } } } let node=dij.restore(v); for w in node.windows(2){ ret.push(Move(get_dir(input.grid.pos(w[0]),input.grid.pos(w[1])) as u8)); } if w[1].1==!0{ assert!(input.grid[w[1].0]==Shop && grid[input.grid.id(w[1].0)]); ret.extend(w[1].3.iter().map(|&n|Buy(n))); } else{ ret.push(Bom(input.pos[w[1].1].1)); } } (ret,score) } const INF:i64=i64::MAX/4; const STEP:i64=1518500249; // sqrt(INF) struct Dijkstra{ prev:Vec<usize>, base:i64, dist:Vec<i64>, que:(Queue<(usize,i64)>,Queue<(usize,i64)>), } impl Dijkstra{ fn new()->Self{ let n=(N+1)*(N+1); Self{ prev:vec![!0;n], base:INF, dist:vec![INF;n], que:(Queue::new(),Queue::new()), } } fn restore(&self,mut v:usize)->Vec<usize>{ let mut route=vec![]; while v!=!0{ route.push(v); v=self.prev[v]; } route.reverse(); route } // todo: 双方向化 // grid: true->block fn solve(&mut self,input:&Input,grid:&[bool],a:usize,b:usize)->i64{ self.que.0.clear(); self.que.1.clear(); self.prev[a]=!0; self.base-=STEP; self.dist[a]=self.base-STEP; self.que.0.push_back((a,self.dist[a])); if a==b{ return 0; } loop{ let (v,dist); if !self.que.0.is_empty(){ if !self.que.1.is_empty(){ let &(_,dist0)=self.que.0.front().unwrap(); let &(_,dist1)=self.que.1.front().unwrap(); if dist0>dist1{ (v,dist)=self.que.1.pop_front().unwrap(); } else{ (v,dist)=self.que.0.pop_front().unwrap(); } } else{ (v,dist)=self.que.0.pop_front().unwrap(); } } else if !self.que.1.is_empty(){ (v,dist)=self.que.1.pop_front().unwrap(); } else{ panic!(); } if self.dist[v]!=dist{ continue; } for dd in input.grid.dd{ let nv=v+dd; if input.grid.is_wall(nv) || self.dist[nv]<self.base{ continue; } let weight=grid[nv] as i64+1; let dist=dist+weight; self.prev[nv]=v; if nv==b{ return dist-(self.base-STEP); } self.dist[nv]=dist; if weight==1{ self.que.0.push_back((nv,dist)); } else{ self.que.1.push_back((nv,dist)); } } } } } const MAX_HOLD:usize=5; // todo // 挿入dpではない // 両方からDPして遅延評価するやつで高速化 struct InsertionDP{ ratio:Vec<f64>, dp:Vec<(f64,usize)>, next:Vec<(f64,usize)>, rest:IndexSet, t:Vec<(i64,i64,usize)>, cht:ConvexHallTrick, track:Track<usize>, last_ans:usize, } impl InsertionDP{ fn new(input:&Input,a:&[usize])->Self{ // let mut ratio=vec![]; // let mut r=input.ratio; // for _ in 0..=a.len(){ // ratio.push(r+1.); // r*=0.3; // } let ratio=vec![1.;a.len()+1]; // todo: n個終わったときの辺の重み Self{ ratio, dp:vec![(0.,!0);MAX_HOLD], next:vec![(0.,!0);MAX_HOLD], rest:IndexSet::new(input.shop.len()), t:vec![], cht:ConvexHallTrick::new(), track:Track::new(), last_ans:!0, } } // todo: 復元をしないことで高速化 fn solve(&mut self,input:&Input,iter:impl Iterator<Item=usize>)->f64{ self.track.clear(); use std::f64::INFINITY as INF; self.dp.fill((INF,!0)); self.dp[0].0=0.; self.rest.fill(); let mut p0=START; // todo: 残り個数から自明に不可能なHOLDを見ないようにして高速化 for (i,n) in iter.enumerate(){ let p1=input.pos[n].0; let add=(p0-p1).manh() as f64*self.ratio[i]; for j in 1..MAX_HOLD{ let id=self.track.push(self.dp[j].1,!0); self.next[j-1]=(self.dp[j].0+add*(j+1) as f64*(j+1) as f64,id); } self.next[MAX_HOLD-1]=(INF,!0); if !self.rest.is_empty(){ self.t.clear(); self.t.extend(self.rest.to_slice().iter().map(|&k|((p1-input.shop[k]).manh(),(p0-input.shop[k]).manh(),k))); self.t.sort_unstable_by_key(|t|t.0); self.cht.clear(); for &(a,b,k) in self.t.iter().rev(){ self.cht.add(a,b,k); } for j in 0..MAX_HOLD{ // prev-i間で一番近いばくだんやによる let mul=(j as i64+2)*(j as i64+2); let (k,add)=self.cht.get(mul); let new=self.dp[0].0+add as f64*self.ratio[i]; if self.next[j].0>new{ let id=self.track.push(self.dp[0].1,k); self.next[j]=(new,id); } } } for &m in &input.shop_edge[n]{ if self.rest.contains(m){ self.rest.del(m); } } p0=p1; std::mem::swap(&mut self.dp,&mut self.next); } self.last_ans=self.dp[0].1; self.dp[0].0 } fn restore(&self)->Vec<usize>{ self.track.restore(self.last_ans) } } #[derive(Clone)] struct State{ ans:Vec<usize>, used:Vec<bool>, cnt:Vec<usize>, set:IndexSet, } impl State{ fn new(input:&Input)->State{ let mut cnt=vec![0;input.cand.len()]; let mut used=vec![false;input.edge.len()]; let mut ans=vec![]; for i in 0..input.cand.len(){ if cnt[i]!=0{ continue; } let new=input.cand[i].choice(); ans.push(new); assert!(!used[new]); used[new]=true; for &a in &input.edge[new].1{ cnt[a]+=1; } } assert!(cnt.iter().all(|&n|0<n)); State{ans,cnt,used,set:IndexSet::new(input.cand.len())} } fn no(&self)->i64{ self.set.len() as i64 } fn score(&self,input:&Input)->i64{ self.ans.iter().map(|&i|input.edge[i].0).sum() } #[track_caller] fn debug(&self,input:&Input){ let mut used=vec![false;input.edge.len()]; let mut cnt=vec![0;input.cand.len()]; for &i in &self.ans{ used[i]=true; for &j in &input.edge[i].1{ cnt[j]+=1; } } assert!(cnt==self.cnt); assert!(used==self.used); for i in 0..input.cand.len(){ if cnt[i]==0{ assert!(self.set.contains(i)); } else{ assert!(!self.set.contains(i)); } } } fn add(&mut self,input:&Input,i:usize){ for &n in &input.edge[i].1{ if self.cnt[n]==0{ self.set.del(n); } self.cnt[n]+=1; } } fn del(&mut self,input:&Input,i:usize){ for &n in &input.edge[i].1{ self.cnt[n]-=1; if self.cnt[n]==0{ self.set.add(n); } } } fn try_add(&mut self,input:&Input,i:usize)->i64{ -input.edge[i].1.iter().map(|&n|(self.cnt[n]==0) as i64).sum::<i64>() } // todo: これの枝刈り fn try_del(&mut self,input:&Input,i:usize)->i64{ input.edge[i].1.iter().map(|&n|(self.cnt[n]==1) as i64).sum::<i64>() } } fn trans_del(input:&Input,state:&mut State,add:f64,score:&mut i64,k:f64)->bool{ let old=*score as f64+state.no() as f64*k; let idx=rnd::next()%state.ans.len(); let a=state.ans[idx]; let diff=state.try_del(input,a); let new_score=*score-input.edge[a].0; let new=new_score as f64+(state.no()+diff) as f64*k; let diff=new-old; if diff<=add{ state.del(input,a); state.used[a]=false; *score=new_score; state.ans.swap_remove(idx); true } else{ false } } fn trans_add(input:&Input,state:&mut State,add:f64,score:&mut i64,k:f64)->bool{ let old=*score as f64+state.no() as f64*k; let a=if !state.set.is_empty(){ input.cand[state.set.rand()].choice() } else{ let mut a=!0; for _ in 0..10{ a=rnd::next()%input.edge.len(); if !state.used[a]{ break; } } if a==!0{ return false; } a }; let diff=state.try_add(input,a); let new_score=*score+input.edge[a].0; let new=new_score as f64+(state.no()+diff) as f64*k; let diff=new-old; if diff<=add{ state.add(input,a); state.used[a]=true; *score=new_score; state.ans.push(a); true } else{ false } } fn trans_del_add(input:&Input,state:&mut State,add:f64,score:&mut i64,k:f64)->bool{ let old=*score as f64+state.no() as f64*k; let idx=rnd::next()%state.ans.len(); let a=state.ans[idx]; state.del(input,a); if state.set.is_empty(){ state.ans.swap_remove(idx); state.used[a]=false; *score-=input.edge[a].0; return true; } let mut b=!0; for _ in 0..10{ b=input.cand[state.set.rand()].choice(); if a!=b{ break; } } if b==!0{ return false; } let diff=state.try_add(input,b); let new_score=*score-input.edge[a].0+input.edge[b].0; let new=new_score as f64+(state.no()+diff) as f64*k; let diff=new-old; if diff<=add{ state.add(input,b); state.used[a]=false; state.used[b]=true; *score=new_score; state.ans[idx]=b; true } else{ state.add(input,a); false } } fn trans(input:&Input,state:&mut State,add:f64,score:&mut i64,k:f64)->bool{ let t=rnd::nextf(); const C:f64=0.01; if !state.ans.is_empty() && t<=C{ // todo trans_del(input,state,add,score,k) } else if state.ans.is_empty() || t<=C+C{ // todo trans_add(input,state,add,score,k) } else{ trans_del_add(input,state,add,score,k) } } struct SA{ start:f64, tl:f64, time:f64, heat:f64, K:f64, table:[f64;65536], state:State, } impl SA{ fn new(state:State)->SA{ let mut table=[0.;65536]; for i in 0..65536{ table[i]=((i as f64+0.5)/65536.).ln(); } rnd::shuffle(&mut table); SA{ start:0., tl:0., time:0., heat:0., K:1., table, state, } } fn update(&mut self)->bool{ self.time=(get_time()-self.start)/self.tl; if self.time>=1.{ return false; } // todo const T0:f64=10.; const T1:f64=0.01; self.heat=T0*(T1/T0).powf(self.time.powf(1.5)); // todo const K0:f64=10.; const K1:f64=200.; self.K=K0+(K1-K0)*self.time; true } fn solve(&mut self,input:&Input,tl:f64){ self.start=get_time(); assert!(self.start<tl); self.tl=tl-self.start; let mut valid=0; let mut score=self.state.score(input); let mut best_score=score; let mut best=self.state.clone(); let mut iter=0; // let mut cand=self.state.clone(); // let mut cand_score=INF; // let mut stay=0; while iter&255!=0 || self.update(){ iter+=1; let add=-self.heat*self.table[iter&65535]; // 最小化 // let add=0.; valid+=trans(input,&mut self.state,add,&mut score,self.K) as usize; if 0.1<self.time{ if best_score>score && self.state.set.is_empty(){ best_score=score; best=self.state.clone(); } // if cand.set.len() as f64*self.K+cand_score as f64>self.state.set.len() as f64*self.K+score as f64{ // stay=0; // cand_score=score; // cand=self.state.clone(); // } else{ // stay+=1; // if stay>=50000{ // eprintln!("RollBack"); // stay=0; // score=cand_score; // self.state=cand.clone(); // } // } } } assert!(self.state.score(input)==score); self.state.debug(input); self.state=best; // eprintln!("score = {}",best_score); // eprintln!("iter = {}",iter); // eprintln!("ratio = {:.3}",valid as f64/iter as f64); } } const N:usize=50; const M:usize=20; const START:P=P(0,0); #[derive(Clone,Copy,PartialEq,Eq)] enum Cell{ Empty, Wall, Shop, } use Cell::*; #[derive(Clone,Copy,PartialEq,Eq)] enum Cmd{ Move(u8), Buy(usize), Bom(usize), } use Cmd::*; type Grid<T>=grid_type!(T,N,N); struct Input{ grid:Grid<Cell>, is_block:Vec<bool>, shop:Vec<P>, edge:Vec<(i64,Vec<usize>)>, // 同じ位置での下位互換は予め除かれる cost:Vec<i64>, shop_edge:Vec<Vec<usize>>, pos:Vec<(P,usize)>, cand:Vec<Vec<usize>>, to_id:Vec<usize>, ratio:f64, } impl Input{ fn new()->Input{ let mut scan=Scanner::new(); input!{ scan, n:usize, m:usize, a:[Chars;n], bom:[(i64,[(i64,i64)]);m], } assert!((n,m)==(N,M)); let mut grid=vec![vec![Empty;N];N]; let mut shop=vec![]; let mut shop_id=vec![vec![!0;N];N]; for i in 0..N{ for j in 0..N{ grid[i][j]=match a[i][j]{ '.'=>Empty, '#'=>Wall, '@'=>{ shop_id[i][j]=shop.len(); shop.push(P::new(i,j)); Shop }, _=>panic!(), }; } } let grid=Grid::new(&grid,Empty); let mut edge=vec![]; let mut pos=vec![]; let mut id=vec![!0;grid.len()]; let mut to_id=vec![]; let mut is=0; let mut is_block=vec![false;grid.len()]; let mut cnt=0; for i in 0..N{ for j in 0..N{ let p=P::new(i,j); if grid[p]!=Empty{ is_block[grid.id(p)]=true; cnt+=1; id[grid.id(p)]=is; to_id.push(grid.id(p)); is+=1; } } } let ratio=cnt as f64/(N*N) as f64; let mut seen=vec![0;grid.len()]; let mut at=0; let mut cost=vec![]; for i in 0..N{ for j in 0..N{ let p=P::new(i,j); for i in 0..m{ at+=1; let add=bom[i].1.iter().map(|np|p+P(np.0,np.1)) .filter(|&p|p.in_range(N,N)) .map(|p|{seen[grid.id(p)]=at;id[grid.id(p)]}) .filter(|&n|n!=!0) .collect::<Vec<_>>(); let mut add_cost=bom[i].0; // todo if let Some(min)=shop.iter().filter(|&&np|seen[grid.id(np)]!=at).map(|&np|(np-p).manh()).min(){ add_cost+=(min as f64*4.).round() as i64; } cost.push(bom[i].0); edge.push((add_cost,add)); pos.push((p,i)); } } } let mut shop_edge=vec![vec![];edge.len()]; for (i,t) in edge.iter().enumerate(){ for &n in &t.1{ let id=shop_id[grid.pos(to_id[n])]; if id!=!0{ shop_edge[i].push(id); } } } let mut cand=vec![vec![];is]; for i in 0..edge.len(){ for &n in &edge[i].1{ cand[n].push(i); } } let mut t=vec![]; for i in 0..is{ t.clear(); std::mem::swap(&mut t,&mut cand[i]); let sum=t.iter().map(|&a|edge[a].1.len() as f64/edge[a].0 as f64).sum::<f64>(); for &a in &t{ let ratio=edge[a].1.len() as f64/edge[a].0 as f64/sum; for _ in 0..(ratio*t.len() as f64).round() as i64{ cand[i].push(a); } } } assert!(cand.iter().all(|t|!t.is_empty())); Input{grid,is_block,shop,edge,cost,shop_edge,pos,cand,to_id,ratio} } } fn write_output(ans:&[Cmd]){ println!("{}",ans.len()); for &c in ans{ match c{ Move(dir)=>println!("1 {}",DC[dir as usize]), Buy(id)=>println!("2 {}",id+1), Bom(id)=>println!("3 {}",id+1), } } } #[allow(unused)] fn get_time()->f64{ static mut START:f64=-1.; let time=std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap().as_secs_f64(); unsafe{ if START<0.{ START=time; } #[cfg(local)]{ (time-START)*1.6 } #[cfg(not(local))]{ time-START } } } #[macro_export] macro_rules! timer{ ()=>{ #[cfg(local)] let _timer=Timer(get_time()); } } static mut TIME:f64=0.; struct Timer(f64); impl Drop for Timer{ fn drop(&mut self){ unsafe{ TIME+=get_time()-self.0 } } } #[allow(unused)] mod rnd { const C:u128=0x2360ED051FC65DA44385DF649FCCF645; static mut N:u128=C; pub fn set_seed(seed:u128){ unsafe{ N^=seed&!1; } } pub fn next()->usize{ unsafe{ let x=N; N*=C; (x as usize^(x>>64) as usize).rotate_right((x>>122) as u32) } } pub fn hash()->u64{ next() as u64 } pub fn nextf()->f64{ unsafe{ std::mem::transmute::<u64,f64>(0x3ff0000000000000|(next() as u64)>>12)-1. } } pub fn range(a:usize,b:usize)->usize{ assert!(a<b); next()%(b-a)+a } pub fn range_skip(a:usize,b:usize,skip:usize)->usize{ assert!(a<=skip && skip<b); let ret=range(a,b-1); ret+(skip<=ret) as usize } pub fn rangei(a:i64,b:i64)->i64{ assert!(a<b); (next()%((b-a) as usize)) as i64+a } pub fn shuffle<T>(list:&mut [T]){ for i in (0..list.len()).rev(){ list.swap(i,next()%(i+1)); } } pub fn nextl(n:usize)->usize{ (next()%n).min(next()%n) } pub fn nexte(n:usize)->usize{ (range(1,n+1) as f64*nextf()) as usize } } trait RandomChoice{ type Output; fn choice(&self)->Self::Output; } impl<T:Copy> RandomChoice for [T]{ type Output=T; fn choice(&self)->T{ self[rnd::next()%self.len()] } } #[derive(Clone)] struct StaticGrid<T,const N:usize,const M:usize,const SIZE:usize>{ wall:[bool;SIZE], item:[T;SIZE], dd:[usize;4], dx:[usize;8], } impl<T,const N:usize,const M:usize,const SIZE:usize> StaticGrid<T,N,M,SIZE>{ // wall:=wallのときのitem fn new(grid:&Vec<Vec<T>>,wall:T)->Self where T:Copy{ assert!(grid.len()==N && grid.iter().all(|t|t.len()==M)); let mut item=[wall;SIZE]; let mut wall=[true;SIZE]; for i in 0..N{ for j in 0..M{ item[(i+1)*(M+1)+j+1]=grid[i][j]; wall[(i+1)*(M+1)+j+1]=false; } } StaticGrid{ wall,item, dd:[!0,!M,1,M+1], dx:[!0,!M-1,!M,!M+1,1,M+2,M+1,M], } } const fn len(&self)->usize{ SIZE } fn id(&self,p:P)->usize{ (p.0 as usize+1)*(M+1)+p.1 as usize+1 } fn pos(&self,p:usize)->P{ P::new(p/(M+1)-1,p%(M+1)-1) } // 壁でないものから8近傍以内のアクセスであれば正しい値が返ってくる fn is_wall(&self,p:usize)->bool{ self.wall[p] } fn set_wall(&mut self,p:usize,f:bool){ self.wall[p]=f; } } impl<T,const N:usize,const M:usize,const SIZE:usize> Index<usize> for StaticGrid<T,N,M,SIZE>{ type Output=T; fn index(&self,n:usize)->&T{ &self.item[n] } } impl<T,const N:usize,const M:usize,const SIZE:usize> IndexMut<usize> for StaticGrid<T,N,M,SIZE>{ fn index_mut(&mut self,n:usize)->&mut T{ &mut self.item[n] } } impl<T,const N:usize,const M:usize,const SIZE:usize> Index<P> for StaticGrid<T,N,M,SIZE>{ type Output=T; fn index(&self,n:P)->&T{ &self.item[self.id(n)] } } impl<T,const N:usize,const M:usize,const SIZE:usize> IndexMut<P> for StaticGrid<T,N,M,SIZE>{ fn index_mut(&mut self,n:P)->&mut T{ let n=self.id(n); &mut self.item[n] } } impl<T,const N:usize,const M:usize,const SIZE:usize> Index<(usize,usize)> for StaticGrid<T,N,M,SIZE>{ type Output=T; fn index(&self,n:(usize,usize))->&T{ &self.item[self.id(P::new(n.0,n.1))] } } impl<T,const N:usize,const M:usize,const SIZE:usize> IndexMut<(usize,usize)> for StaticGrid<T,N,M,SIZE>{ fn index_mut(&mut self,n:(usize,usize))->&mut T{ let n=self.id(P::new(n.0,n.1)); &mut self.item[n] } } #[macro_export] macro_rules! grid_type{ ($t:ident,$n:expr,$m:expr)=>{ StaticGrid<$t,{$n},{$m},{($m+1)*($n+2)+1}> } } #[derive(Clone,Copy,PartialEq,Eq,PartialOrd,Ord,Debug,Default,Hash)] struct P(i64,i64); impl P{ fn new(a:usize,b:usize)->P{ P(a as i64,b as i64) } fn in_range(self,h:usize,w:usize)->bool{ h>self.0 as usize && w>self.1 as usize } fn dot(self,a:P)->i64{ self.0*a.0+self.1*a.1 } fn det(self,a:P)->i64{ self.0*a.1-self.1*a.0 } fn manh(self)->i64{ self.0.abs()+self.1.abs() } fn abs2(self)->i64{ self.dot(self) } // 時計回りに90度 fn rot90(self)->P{ P(-self.1,self.0) } } use std::ops::*; impl Add for P{ type Output=P; fn add(self,a:P)->P{ P(self.0+a.0,self.1+a.1) } } impl Sub for P{ type Output=P; fn sub(self,a:P)->P{ P(self.0-a.0,self.1-a.1) } } impl Mul<i64> for P{ type Output=P; fn mul(self,a:i64)->P{ P(self.0*a,self.1*a) } } impl Div<i64> for P{ type Output=P; fn div(self,a:i64)->P{ P(self.0/a,self.1/a) } } impl Neg for P{ type Output=P; fn neg(self)->P{ P(-self.0,-self.1) } } impl AddAssign for P{ fn add_assign(&mut self,a:P){ *self=*self+a; } } impl SubAssign for P{ fn sub_assign(&mut self,a:P){ *self=*self-a; } } impl MulAssign<i64> for P{ fn mul_assign(&mut self,a:i64){ *self=*self*a; } } impl DivAssign<i64> for P{ fn div_assign(&mut self,a:i64){ *self=*self/a; } } impl<T:Index<usize>> Index<P> for [T]{ type Output=T::Output; fn index(&self,idx:P)->&T::Output{ &self[idx.0 as usize][idx.1 as usize] } } impl<T:IndexMut<usize>> IndexMut<P> for [T]{ fn index_mut(&mut self,idx:P)->&mut T::Output{ &mut self[idx.0 as usize][idx.1 as usize] } } impl<T:Index<usize>> Index<P> for Vec<T>{ type Output=T::Output; fn index(&self,idx:P)->&T::Output{ &self[idx.0 as usize][idx.1 as usize] } } impl<T:IndexMut<usize>> IndexMut<P> for Vec<T>{ fn index_mut(&mut self,idx:P)->&mut T::Output{ &mut self[idx.0 as usize][idx.1 as usize] } } const DD:[P;4]=[P(0,-1),P(-1,0),P(0,1),P(1,0)]; const DC:[char;4]=['L','U','R','D']; fn get_dir(a:P,b:P)->usize{ (0..4).find(|&i|DD[i]==b-a).unwrap() } struct Scanner{ stack:std::str::SplitAsciiWhitespace<'static> } impl Scanner{ fn new()->Self{ use std::io::Read; let mut tmp=String::new(); std::io::stdin().read_to_string(&mut tmp).unwrap(); Self{stack:Box::leak(tmp.into_boxed_str()).split_ascii_whitespace()} } fn read<T:std::str::FromStr>(&mut self)->T{ self.stack.next().unwrap().parse::<T>().unwrap_or_else(|_|panic!("parse error {}",std::any::type_name::<T>())) } } #[macro_export] macro_rules! input{ ($scan:expr $(,)?)=>{}; ($scan:expr, mut $name:ident:$t:tt $($rest:tt)*)=>{ let mut $name=read_value!($scan,$t); input!{$scan $($rest)*} }; ($scan:expr, $name:ident:$t:tt $($rest:tt)*)=>{ let $name=read_value!($scan,$t); input!{$scan $($rest)*} }; } #[macro_export] macro_rules! read_value{ ($scan:expr, ($($t:tt),*))=>{ ($(read_value!($scan, $t)),*) }; ($scan:expr, [$t:tt;$len:expr])=>{ (0..$len).map(|_|read_value!($scan,$t)).collect::<Vec<_>>() }; ($scan:expr, [$t:tt])=>{ (0..$scan.read()).map(|_|read_value!($scan,$t)).collect::<Vec<_>>() }; ($scan:expr, Chars)=>{ read_value!($scan,String).chars().collect::<Vec<char>>() }; ($scan:expr, Usize1)=>{ read_value!($scan,usize)-1 }; ($scan:expr, $t:ty)=>{ $scan.read::<$t>() }; } #[derive(Clone)] struct IndexSet{ pos:Vec<usize>, que:Vec<usize>, len:usize } impl IndexSet{ fn new(n:usize)->Self{ IndexSet{ pos:(0..n).collect(), que:(0..n).collect(), len:0 } } fn add(&mut self,a:usize){ let p=self.pos[a]; assert!(self.len<=p); self.que.swap(p,self.len); self.pos.swap(a,self.que[p]); self.len+=1; } fn del(&mut self,a:usize){ let p=self.pos[a]; assert!(p<self.len); self.que.swap(p,self.len-1); self.pos.swap(a,self.que[p]); self.len-=1; } fn rand(&self)->usize{ self.que[rnd::next()%self.len] } fn to_slice(&self)->&[usize]{ &self.que[..self.len] } fn contains(&self,v:usize)->bool{ self.pos[v]<self.len } fn is_empty(&self)->bool{ self.len==0 } fn len(&self)->usize{ self.len } fn clear(&mut self){ self.len=0; } fn fill(&mut self){ self.len=self.pos.len(); } } impl std::cmp::PartialEq for IndexSet{ fn eq(&self,a:&IndexSet)->bool{ self.pos.len()==a.pos.len() && self.len==a.len && self.to_slice().iter().all(|&n|a.contains(n)) } } #[derive(PartialEq,PartialOrd)] struct O<T:PartialEq+PartialOrd>(T); impl<T:PartialEq+PartialOrd> Eq for O<T>{} impl<T:PartialEq+PartialOrd> Ord for O<T>{ fn cmp(&self,a:&O<T>)->std::cmp::Ordering{ self.0.partial_cmp(&a.0).unwrap() } } struct Queue<T>{ data:Vec<T>, head:usize, } impl<T> Queue<T>{ fn new()->Self{ Queue{ data:vec![], head:0, } } fn clear(&mut self){ self.data.clear(); self.head=0; } fn is_empty(&self)->bool{ self.head==self.data.len() } fn len(&self)->usize{ self.data.len()-self.head } fn push_back(&mut self,v:T){ self.data.push(v); } fn pop_front(&mut self)->Option<T> where T:Copy{ if self.head==self.data.len(){ None } else{ self.head+=1; Some(self.data[self.head-1]) } } fn front(&self)->Option<&T>{ if self.is_empty(){ None } else{ Some(&self.data[self.head]) } } fn to_slice(&self)->&[T]{ &self.data[self.head..] } } impl<T> Deref for Queue<T>{ type Target=[T]; fn deref(&self)->&[T]{ &self.data[self.head..] } } impl<T> DerefMut for Queue<T>{ fn deref_mut(&mut self)->&mut [T]{ &mut self.data[self.head..] } } impl<T> Index<usize> for Queue<T>{ type Output=T; fn index(&self,n:usize)->&T{ let idx=self.head+n; assert!(self.head<=idx); &self.data[idx] } } impl<T> IndexMut<usize> for Queue<T>{ fn index_mut(&mut self,n:usize)->&mut T{ let idx=self.head+n; assert!(self.head<=idx); &mut self.data[idx] } } // https://atcoder.jp/contests/hokudai-hitachi2019-1/submissions/10518254 // kickしてから2-opt,3-optで局所最適にするのを1近傍とした山登り // 枝刈りをそれなりに入れてる fn get_score(dist:&Vec<Vec<i64>>,route:&[usize])->i64{ route.windows(2).map(|w|dist[w[0]][w[1]]).sum() } // mv: (i, dir) fn apply_move<const K:usize>(tour:&mut [usize],idx:&mut [usize],mv:&[(usize,usize);K],BF:&mut Vec<usize>){ let mut ids=[!0;K]; let mut it=0..; ids.fill_with(||it.next().unwrap()); ids.sort_unstable_by_key(|&i|mv[i].0); let mut order=[0;K]; for i in 0..K{ order[ids[i]]=i; } let mut i=ids[0]; let mut dir=0; BF.clear(); loop { let (j,rev)=if dir==mv[i].1{ ((i+1)%K,0) } else{ ((i+K-1)%K,1) }; if mv[j].1==rev{ if order[j]==K-1{ break; } i=ids[order[j]+1]; dir=0; BF.extend_from_slice(&tour[mv[j].0+1..mv[i].0+1]); } else{ i=ids[order[j]-1]; dir=1; BF.extend(tour[mv[i].0+1..mv[j].0+1].iter().rev().cloned()); } } assert_eq!(BF.len(),mv[ids[K-1]].0-mv[ids[0]].0); tour[mv[ids[0]].0+1..mv[ids[K-1]].0+1].copy_from_slice(&BF); for i in mv[ids[0]].0+1..mv[ids[K-1]].0+1{ idx[tour[i]]=i; } } const FEASIBLE3:[bool;64]=[false,false,false,true,false,true,true,true,true,true,true,false,true,false,false,false,false,false,false,false,false,false,false,false,false,false,false,true,false,true,true,true,true,true,true,false,true,false,false,false,false,false,false,false,false,false,false,false,false,false,false,true,false,true,true,true,true,true,true,false,true,false,false,false]; // 一番近いやつを追加していく fn solve_tsp_greedy(dist:&Vec<Vec<i64>>,start:usize)->Vec<usize>{ let mut ret=vec![start]; let mut rest:Vec<_>=(0..dist.len()).filter(|&i|i!=start).collect(); while !rest.is_empty(){ let last=*ret.last().unwrap(); let idx=(0..rest.len()).min_by_key(|&i|O(dist[last][rest[i]])).unwrap(); ret.push(rest.swap_remove(idx)); } ret.push(start); ret } // routeは初期解を指定可能 fn solve_tsp_ils(dist:&Vec<Vec<i64>>,mut route:Vec<usize>)->Vec<usize>{ let n=dist.len(); assert_eq!(n,route.len()-1); let mut f=vec![vec![];n]; for i in 0..n{ for j in 0..n{ if i!=j{ f[i].push((dist[i][j],j)); } } f[i].sort_unstable_by_key(|t|O(t.0)); } let mut idx=vec![!0;n]; let (mut min_score,mut best)=(get_score(&dist,&route),route.clone()); let mut BF=vec![]; for _ in 0..5{ // todo let mut cost=get_score(&dist,&route); for i in 0..n{ idx[route[i]]=i; } loop { let mut ok=false; for i in 0..n{ for di in 0..2{ 'a: for &(ij,vj) in &f[route[i+di]]{ if dist[route[i]][route[i+1]]-ij<=0{ break; } for dj in 0..2{ let j=if idx[vj]==0 && dj==0{ n-1 } else { idx[vj]-1+dj }; let gain=dist[route[i]][route[i+1]]-ij+dist[route[j]][route[j+1]]; let diff=gain-dist[route[j+dj]][route[i+1-di]]; if di!=dj && diff>0{ cost-=diff; apply_move(&mut route,&mut idx,&[(i,di),(j,dj)],&mut BF); ok=true; break 'a; } for &(jk,vk) in &f[route[j+dj]]{ if gain-jk<=0{ break; } for dk in 0..2{ let k=if idx[vk]==0 && dk==0{ n-1 } else { idx[vk]-1+dk }; if i==k || j==k{ continue; } let diff=gain-jk+dist[route[k]][route[k+1]]-dist[route[k+dk]][route[i+1-di]]; if diff>0{ let mask=((i<j) as usize)<<5 | ((i<k) as usize)<<4 | ((j<k) as usize)<<3 | di<<2 | dj<<1 | dk; if FEASIBLE3[mask]{ cost-=diff; apply_move(&mut route,&mut idx,&[(i,di),(j,dj),(k,dk)],&mut BF); ok=true; break 'a; } } } } } } } } if !ok{ break; } } if min_score>cost{ min_score=cost; best.clear(); best.extend(&route); } else{ route.clear(); route.extend(&best); } if rnd::next()&1==0{ // double bridge let mut is=[!0;4]; loop{ is.fill_with(||rnd::next()%n+1); is.sort_unstable(); if is[0]!=is[1] && is[1]!=is[2] && is[2]!=is[3]{ break; } } BF.clear(); let it=route[is[2]..is[3]].iter().chain(&route[is[1]..is[2]]).chain(&route[is[0]..is[1]]); BF.extend(it.cloned()); route[is[0]..is[3]].copy_from_slice(&BF); } else{ for _ in 0..6{ loop{ let i=rnd::next()%(n-1); let j=rnd::next()%(n-1); if i<j && j-i<n-2{ route[i+1..j].reverse(); break; } } } } } best } struct ConvexHallTrick(Vec<((i64,i64),usize)>,usize); impl ConvexHallTrick{ fn new()->Self{ Self(vec![],0) } fn clear(&mut self){ self.0.clear(); self.1=0; } // y=ax+bを追加 // aが単調減少の必要がある fn add(&mut self,a:i64,b:i64,id:usize){ loop{ let len=self.0.len(); if len<2 || !check(self.0[len-2].0,self.0[len-1].0,(a,b)){ break; } self.0.pop().unwrap(); } self.0.push(((a,b),id)); } fn f(&self,i:usize,x:i64)->i64{ self.0[i].0.0*x+self.0[i].0.1 } // f(x)の最小値 // xは単調増加の必要がある fn get(&mut self,x:i64)->(usize,i64){ while self.0.len()-self.1>=2 && self.f(self.1,x)>=self.f(self.1+1,x){ self.1+=1; } (self.0[self.1].1,self.f(self.1,x)) } } fn check(l0:(i64,i64),l1:(i64,i64),l2:(i64,i64))->bool{ (l1.0-l0.0)*(l2.1-l1.1)>=(l1.1-l0.1)*(l2.0-l1.0) } struct Track<T>(Vec<(usize,T)>); impl<T> Track<T>{ fn new()->Self{ Track(vec![]) } fn clear(&mut self){ self.0.clear(); } fn push(&mut self,prev:usize,v:T)->usize{ self.0.push((prev,v)); self.0.len()-1 } fn restore(&self,mut idx:usize)->Vec<T> where T:Clone{ let mut ret=vec![]; while idx!=!0{ let (prev,v)=self.0[idx].clone(); ret.push(v); idx=prev; } ret.reverse(); ret } } impl<T> Index<usize> for Track<T>{ type Output=T; fn index(&self,idx:usize)->&T{ &self.0[idx].1 } } #[macro_export]#[cfg(not(local))]macro_rules! eprint{($($_:tt)*)=>{}} #[macro_export]#[cfg(not(local))]macro_rules! eprintln{($($_:tt)*)=>{}} #[macro_export]#[cfg(not(local))]macro_rules! assert{($($_:tt)*)=>{}} #[macro_export]#[cfg(not(local))]macro_rules! assert_eq{($($_:tt)*)=>{}} #[macro_export]#[cfg(not(local))]macro_rules! assert_ne{($($_:tt)*)=>{}}