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제출 #815716

#제출 시각아이디문제언어결과실행 시간메모리
815716jeff252Garden (JOI23_garden)C++14
100 / 100
324 ms6324 KiB
#include<bits/stdc++.h> #define fi first #define se second #define pitem item* using namespace std; typedef long long ll; typedef unsigned long long ull; typedef vector<int> vi; typedef vector<ll> vl; const int N=5e3+10; const int SS=1<<19; const int INFi=2e9; const ll INFl=1e16; const ll mod2=998244353; const ll mod=1e9+7; const ll mod3=2027865967; const ll p=70032301; const ull p2=913; const int L=20; int t[N],n,m,d; pair<int,int> li[N]; bitset<N> tr[N],m1,m2,moz; vi g[N*2]; void solve(){ cin>>n>>m>>d; for(int i=1;i<=n;i++){ int a,b; cin>>a>>b; m1[a]=1,m2[b]=1; } for(int i=1;i<=m;i++){ int a,b; cin>>a>>b; tr[a][b]=1; moz[b]=1; } for(int i=0;i<d;i++){ if(m2[i]) continue; for(int i2=d*2-1;i2>=d;i2--){ if(tr[i2-d][i]){ g[i2].push_back(i); break; } } } int res=INFi; for(int i=d-1;i>=0;i--){ for(auto u:g[i+d]){ for(int i2=i+d-1;i2>=i;i2--){ int id=(i2>=d?i2-d:i2); if(tr[id][u]){ g[i2].push_back(u); break; } } } int pop=-1,maxir=0; for(int i2=0;i2<d;i2++){ li[i2].fi=pop; if(m2[i2] or moz[i2]) pop=i2; } int ost=pop; pop=-1; for(int i2=d-1;i2>=0;i2--){ li[i2].se=pop; if(pop!=-1){ maxir=max(maxir,pop-i2-1); } if(m2[i2] or moz[i2]) pop=i2; } int pierw=pop,pom=0; for(int i2=i;i2<i+d;i2++){ int id=(i2>=d?i2-d:i2); if(m1[id]) pom=i2; } for(int i2=i;i2<i+d;i2++){ for(auto u:g[i2]){ if(li[u].fi==-1){ pierw=li[u].se; li[li[u].se].fi=-1; } if(li[u].se==-1){ ost=li[u].fi; li[li[u].fi].se=-1; } if(li[u].se!=-1 and li[u].fi!=-1){ maxir=max(maxir,li[u].se-li[u].fi-1); li[li[u].fi].se=li[u].se; li[li[u].se].fi=li[u].fi; } } if(i2>=pom){ res=min(res,(i2-i+1)*min(d-maxir,ost-pierw+1)); } } } cout<<res<<"\n"; } int main(){ ios_base::sync_with_stdio(0),cin.tie(0); int tt=1; while(tt--) solve(); }
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