結果
問題 |
No.2230 Good Omen of White Lotus
|
ユーザー |
|
提出日時 | 2025-09-14 04:28:04 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 262 ms / 2,000 ms |
コード長 | 4,282 bytes |
コンパイル時間 | 3,260 ms |
コンパイル使用メモリ | 297,260 KB |
実行使用メモリ | 25,068 KB |
最終ジャッジ日時 | 2025-09-14 04:28:15 |
合計ジャッジ時間 | 10,444 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 44 |
ソースコード
#include<bits/stdc++.h> #if __has_include(<atcoder/all>) #include<atcoder/modint> #include<atcoder/lazysegtree> #endif using namespace std; #define eb emplace_back #define LL(...) ll __VA_ARGS__;lin(__VA_ARGS__) #define RDVV(T,n,...) vec<T>__VA_ARGS__;fe(refs(__VA_ARGS__),e)e.get().resizes(n);vin(__VA_ARGS__) #define VV(n,...) RDVV(ll,n,__VA_ARGS__) #define fo(i,...) for(auto[i,i##stop,i##step]=for_range<ll>(0,__VA_ARGS__);i<i##stop;i+=i##step) #define fe(a,e,...) for(auto&&__VA_OPT__([)e __VA_OPT__(,__VA_ARGS__]):a) #define defpp template<ostream&o=cout>void pp(const auto&...a){[[maybe_unused]]const char*c="";((o<<c<<a,c=" "),...);o<<'\n';}void epp(const auto&...a){pp<cerr>(a...);} #define entry defpp void main();void main2();}int main(){my::io();my::main();}namespace my{ #define use_ml998244353 using ml=atcoder::modint998244353; namespace my{ auto&operator<<(ostream&o,const atcoder::modint998244353&x){return o<<(int)x.val();} void io(){cin.tie(nullptr)->sync_with_stdio(0);cout<<fixed<<setprecision(15);} using ll=long long; template<class T>concept modulary=requires(T t){t.mod();}; constexpr auto refs(auto&...a){return array{ref(a)...};} template<class T>constexpr auto for_range(T s,T b){T a=0;if(s)swap(a,b);return array{a-s,b,1-s*2};} void lin(auto&...a){(cin>>...>>a);} void vin(auto&...a){fo(i,(a.size()&...))(cin>>...>>a[i]);} constexpr ll size10(auto x){x|=1;ll r=0;while(x>0)x/=10,++r;return r;} template<class T>constexpr ll maxsize10(){return size10(numeric_limits<T>::max());} template<bool is_negative=false>struct infinity{ template<integral T>static constexpr T ones(size_t n){return n?ones<T>(n-1)*10+1:0;} template<integral T>constexpr operator T()const{static constexpr T v=ones<T>(maxsize10<T>())*(1-is_negative*2);return v;} constexpr auto operator-()const{return infinity<!is_negative>();} }; constexpr infinity oo; void dec(auto&...a){((--a),...);} template<class F=less<>>auto&sort(auto&a,F f={}){ranges::sort(a,f);return a;} template<class...A>using pack_back_t=tuple_element_t<sizeof...(A)-1,tuple<A...>>; } namespace my{ template<class V>constexpr int depth=0; template<class T>struct core_t_helper{using type=T;}; template<class T>using core_t=core_t_helper<T>::type; template<class V>struct vec; template<int D,class T>struct hvec_helper{using type=vec<typename hvec_helper<D-1,T>::type>;}; template<class T>struct hvec_helper<0,T>{using type=T;}; template<int D,class T>using hvec=hvec_helper<D,T>::type; template<class V>struct vec:vector<V>{ static constexpr int D=depth<V>+1; using C=core_t<V>; using vector<V>::vector; void resizes(const auto&...a){if constexpr(sizeof...(a)==D)*this=make(a...,C{});else{ }} static auto make(ll n,const auto&...a){ if constexpr(sizeof...(a)==1)return vec<C>(n,array{a...}[0]); else { } } vec&operator--(){fe(*this,e)--e;return*this;} ll size()const{return vector<V>::size();} auto&emplace_back(auto&&...a){vector<V>::emplace_back(std::forward<decltype(a)>(a)...);return*this;} }; template<class...A>requires(sizeof...(A)>=2)vec(const A&...a)->vec<hvec<sizeof...(A)-2,pack_back_t<A...>>>; } namespace my{ namespace sgt{ template<class T,auto x>T identity(){return x;} template<class T>T max(T a,T b){return a<b?b:a;} template<class F>F replace_identity(){if constexpr(modulary<F>){ }else return oo;} template<class S,class F>S replace_mapping(F f,S x){return(f==replace_identity<F>()?x:f);} template<class F>F replace_composition(F f,F g){return(f!=replace_identity<F>()?f:g);} template<class T>struct lazyseg_replace_max:atcoder::lazy_segtree<T,max<T>,identity<T,-oo>,T,replace_mapping<T,T>,replace_composition<T>,replace_identity<T>>{ using atcoder::lazy_segtree<T,max<T>,identity<T,-oo>,T,replace_mapping<T,T>,replace_composition<T>,replace_identity<T>>::lazy_segtree; ll ge_leftmost(ll l,const T&x){return this->max_right(l,[&](T v){return v<x;});} }; } } namespace my{entry void main(){ LL(H,W,N,P); VV(N,x,y);dec(x,y); vec<vec<ll>>g(H); fo(i,N)g[x[i]].eb(y[i]); sgt::lazyseg_replace_max<ll>s(vec<ll>(W,0)); fo(i,H){ fe(sort(g[i]),j){ ll v=s.get(j)+1; ll r=s.ge_leftmost(j,v); s.apply(j,r,v); } } use_ml998244353 ll X=s.get(W-1); ml p=1-ml(P).inv()*2; ml q=1-ml(P).inv(); pp(1-p.pow(X)*q.pow(H+W-3-X)); }}