Submission #1112558

#TimeUsernameProblemLanguageResultExecution timeMemory
1112558PioneerNew Home (APIO18_new_home)C++17
0 / 100
3097 ms231028 KiB
#include <bits/stdc++.h> #pragma GCC optimize("Ofast") // #pragma GCC target("avx2") #define ll long long // #define int ll #define all(v) v.begin(),v.end() #define sz(s) ((int)s.size()) #define pb push_back #define F first #define S second #define pii pair<int,int> #define ppb pop_back #define lb lower_bound #define ub upper_bound using namespace std; const int inf=1e8; const int MAX=3e5+10; const int mod=1e9+7; int binpow(int a,int n){ if(!n)return 1; if(n%2==1)return a*binpow(a,n-1)%mod; int k=binpow(a,n/2); return k*k%mod; } int n,k,q,m; int a[MAX],b[MAX],x[MAX],t[MAX]; int l[MAX],y[MAX]; vector<int> events[MAX+MAX],zap[MAX+MAX]; multiset<int> st[MAX]; vector<int> tim,pos; struct segtree{ multiset<int> t[4*2*MAX]; int mx[4*2*MAX]; segtree(){ memset(mx,-1,sizeof(mx)); } void add(int v,int tl,int tr,int pos,int x){ if(tl==tr){ t[v].insert(x); mx[v]=*t[v].rbegin(); return; } int tm=(tl+tr)/2; if(pos<=tm){ add(2*v,tl,tm,pos,x); } else{ add(2*v+1,tm+1,tr,pos,x); } mx[v]=max(mx[2*v],mx[2*v+1]); } void del(int v,int tl,int tr,int pos,int x){ if(tl==tr){ t[v].erase(t[v].find(x)); if(t[v].empty())mx[v]=-1; else mx[v]=*t[v].rbegin(); return; } int tm=(tl+tr)/2; if(pos<=tm){ del(2*v,tl,tm,pos,x); } else{ del(2*v+1,tm+1,tr,pos,x); } mx[v]=max(mx[2*v],mx[2*v+1]); } int get(int v,int tl,int tr,int l,int r){ if(l>r||tl>r||l>tr)return 0; if(l<=tl&&tr<=r)return mx[v]; int tm=(tl+tr)/2; return max(get(2*v,tl,tm,l,r),get(2*v+1,tm+1,tr,l,r)); } }tree; int cnt[MAX],col; int getx(int x){ return lb(all(pos),x)-pos.begin(); } void add(int id){ if(cnt[t[id]]==0)col++; cnt[t[id]]++; if(st[t[id]].count(x[id]))st[t[id]].insert(x[id]); else{ auto l=--st[t[id]].lb(x[id]); auto r=st[t[id]].lb(x[id]); int LL=getx(*l+1); if(!(*l==-1&&*r==inf+1))tree.del(1,0,m-1,LL,*r-1); tree.add(1,0,m-1,LL,x[id]-1); tree.add(1,0,m-1,getx(x[id]+1),*r-1); st[t[id]].insert(x[id]); } } void del(int id){ id=-id; cnt[t[id]]--; if(cnt[t[id]]==0)col--; st[t[id]].erase(st[t[id]].find(x[id])); if(!st[t[id]].count(x[id])){ auto l=--st[t[id]].lb(x[id]); auto r=st[t[id]].lb(x[id]); int LL=getx(*l+1); tree.del(1,0,m-1,LL,x[id]-1); tree.del(1,0,m-1,getx(x[id]+1),*r-1); if(!(*l==-1&&*r==inf+1))tree.add(1,0,m-1,LL,*r-1); } } bool check(int l,int r){ l=max(l,0); r=min(r,inf); l=ub(all(pos),l)-pos.begin()-1; if(tree.get(1,0,m-1,0,l)>=r)return 0; return 1; } int ans[MAX]; void solve(){ cin>>n>>k>>q; pos.pb(0),pos.pb(inf); for(int i=1;i<=n;i++){ cin>>x[i]>>t[i]>>a[i]>>b[i]; tim.pb(a[i]); tim.pb(b[i]+1); pos.pb(x[i]+1); pos.pb(x[i]-1); } for(int i=1;i<=q;i++){ cin>>l[i]>>y[i]; tim.pb(y[i]); } sort(all(tim)); tim.erase(unique(all(tim)),tim.end()); sort(all(pos)); pos.erase(unique(all(pos)),pos.end()); for(int i=1;i<=n;i++){ a[i]=lb(all(tim),a[i])-tim.begin(); b[i]=lb(all(tim),b[i]+1)-tim.begin(); events[a[i]].pb(i); events[b[i]].pb(-i); } for(int i=1;i<=q;i++){ y[i]=lb(all(tim),y[i])-tim.begin(); zap[y[i]].pb(i); } for(int i=1;i<=k;i++){ st[i].insert(-1); st[i].insert(inf+1); } m=sz(pos); for(int i=0;i<sz(tim);i++){ for(auto id:events[i]){ if(id>0){ add(id); } else{ del(id); } } for(int id:zap[i]){ if(col!=k){ ans[id]=-1; } else{ int L=0,R=max(x[id],inf-x[id]),res=max(x[id],inf-x[id]); while(L<=R){ int mid=(L+R)/2; if(check(l[id]-mid,l[id]+mid)){ R=mid-1,res=mid; } else L=mid+1; } ans[id]=res; } } } for(int i=1;i<=q;i++)cout<<ans[i]<<"\n"; } signed main(){ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int t=1; // cin>>t; while(t--)solve(); }
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