Submission #942246

# Submission time Handle Problem Language Result Execution time Memory
942246 2024-03-10T11:40:20 Z MilosMilutinovic Harvest (JOI20_harvest) C++14
5 / 100
185 ms 234576 KB
#include<bits/stdc++.h>
 
#define pb push_back
#define fi first
#define se second
#define mp make_pair
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef long double ld;
 
template <typename T> bool chkmin(T &x,T y){return x>y?x=y,1:0;}
template <typename T> bool chkmax(T &x,T y){return x<y?x=y,1:0;}
 
ll readint(){
	ll x=0,f=1; char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	return x*f;
}

int n,m,l,c,q,T,tsz;
int a[200005],b[200005],prv[200005],deg[200005],rt[200005],fenw[200005],dfn[200005],dfo[200005],cnt[10000005],ls[10000005],rs[10000005],root[200005];
ll d[200005],sum[10000005];
vector<pair<ll,int>> qs[200005];
vector<array<ll,4>> ev;
vector<ll> my[200005];
ll ans[200005];
vector<int> topo,ch[200005];
bool oncyc[200005];

ll calc(ll x){return x>=c?x:((c-x+l-1)/l)*1ll*l+x;}
ll divb(ll x,ll y){return x>=0?x-x%y:x-((y+(x%y))%y);}

int getprv(int x){
	int d=c%l;
	if(a[1]<=x-d){
		int l=1,r=n,p=1;
		while(l<=r){
			int mid=(l+r)/2;
			if(a[mid]<=x-d) l=mid+1,p=mid; 
			else r=mid-1;
		}
		return p;
	}else{
		int l=1,r=n,p=1;
		while(l<=r){
			int mid=(l+r)/2;
			if(x+::l-a[mid]>=d) l=mid+1,p=mid; 
			else r=mid-1;
		}
		return p;
	}
}

void change(int p,int v){
	for(;p<200005;p|=p+1) fenw[p]+=v;  
}

int ask(int p){
	int v=0;
	for(;p>=0;p=(p&(p+1))-1) v+=fenw[p];
	return v;
}

void dfs1(int x,ll d){
	dfn[x]=++T;
	for(auto&p:my[x]) ev.pb({d+p,0,dfn[x],0});
	for(auto&p:qs[x]) ev.pb({p.fi+d,1,x,p.se});
	for(auto&p:my[x]) my[rt[x]].pb(p+d);
	for(int v:ch[x]){
		rt[v]=rt[x];
		ll w=calc(a[x]<=a[v]?a[v]-a[x]:a[v]+l-a[x]);
		dfs1(v,d+w);
	}
	dfo[x]=T;
}

/*void modifyy(int&id,int l,int r,int p,ll v){
	if(!id) id=++tsz,cnt[id]=sum[id]=ls[id]=rs[id]=0;
	sum[id]+=v;
	cnt[id]++;  
	if(l==r) return;
	int mid=(l+r)/2;
	if(p<=mid) modifyy(ls[id],l,mid,p,v);
	else modifyy(rs[id],mid+1,r,p,v);
}

void modifyx(int x,int y,ll v){
	for(;x<200000;x|=(x+1)) modifyy(root[x],0,200000,y,v);
}

pair<ll,int> queryy(int id,int l,int r,int ql,int qr){
	if(ql<=l&&r<=qr) return mp(sum[id],cnt[id]);
	int mid=(l+r)/2;
	if(qr<=mid) return queryy(ls[id],l,mid,ql,qr);
	else if(ql>mid) return queryy(rs[id],mid+1,r,ql,qr);
	pair<ll,int> lv=queryy(ls[id],l,mid,ql,qr);
	pair<ll,int> rv=queryy(rs[id],mid+1,r,ql,qr);
	return mp(lv.fi+rv.fi,lv.se+rv.se);
}

pair<ll,int> queryx(int x1,int x2,int y1,int y2){
	pair<ll,int> ret=mp(0ll,0);
	for(int x=x2;x>=0;x=(x&(x+1))-1){
		pair<ll,int> f=queryy(root[x],0,200000,y1,y2);
		ret.fi+=f.fi; 
		ret.se+=f.se;
	}
	for(int x=x1-1;x>=0;x=(x&(x+1))-1){
		pair<ll,int> f=queryy(root[x],0,200000,y1,y2);
		ret.fi-=f.fi;
		ret.se-=f.se;
	}
	return ret;
}

void clrx(int x){ 
	for(;x<200000;x|=(x+1)) root[x]=0;
}*/

ll S[6005][6005];
int C[6005][6005];

void modifyx(int x,int y,ll v,int c){
	for(int i=x;i<6005;i|=(i+1)){
		for(int j=y;j<6005;j|=(j+1)){
			S[i][j]+=v;
			C[i][j]+=c;
		}
	}
}

pair<ll,int> query(int x,int y){
	pair<ll,int> ret=mp(0ll,0);
	for(int i=x;i>=0;i=(i&(i+1))-1){
		for(int j=y;j>=0;j=(j&(j+1))-1){
			ret.fi+=S[i][j];
			ret.se+=C[i][j];
		}
	}
	return ret;
}

pair<ll,int> queryx(int x1,int x2,int y1,int y2){
	pair<ll,int> ret=query(x2,y2);
	ret.fi-=query(x2,y1-1).fi;
	ret.se-=query(x2,y1-1).se;
	ret.fi-=query(x1-1,y2).fi;
	ret.se-=query(x1-1,y2).se;
	ret.fi+=query(x1-1,y1-1).fi;
	ret.se+=query(x1-1,y1-1).se;
	return ret;
}

int main(){
	n=readint(); m=readint(); l=readint(); c=readint();
	for(int i=1;i<=n;i++) a[i]=readint();
	for(int i=1;i<=m;i++) b[i]=readint();
	q=readint();
	for(int i=1;i<=q;i++){
		int v=readint();
		ll t=readint();
		qs[v].pb(mp(t,i));
	}
	for(int i=1;i<=n;i++) prv[i]=getprv(a[i]);
	for(int i=1;i<=m;i++){
		int idx;
		if(a[1]<=b[i]){
			int l=1,r=n;
			while(l<=r){
				int mid=(l+r)/2;
				if(a[mid]<=b[i]) idx=mid,l=mid+1;
				else r=mid-1;
			}
		}else idx=n;
		my[idx].pb((b[i]-a[idx]+l)%l);
	}
	for(int i=1;i<=n;i++) deg[prv[i]]++;
	for(int i=1;i<=n;i++) if(deg[i]==0) topo.pb(i);
	for(int i=0;i<(int)topo.size();i++){
		int v=topo[i];
		deg[prv[v]]--;
		if(deg[prv[v]]==0) topo.pb(prv[v]);
	}
	for(int i=1;i<=n;i++) oncyc[i]=true;
	for(int i:topo) oncyc[i]=false;
	for(int i=1;i<=n;i++) ch[prv[i]].pb(i);
	for(int i=1;i<=n;i++){
		if(oncyc[i]||!oncyc[prv[i]]) continue;
		rt[i]=prv[i];
		ll w=calc(a[prv[i]]<=a[i]?a[i]-a[prv[i]]:a[i]+l-a[prv[i]]);
		T=0;
		ev.clear();
		dfs1(i,w);
		sort(ev.begin(),ev.end());
		for(auto&p:ev){
			if(p[1]==0){
				change(p[2],1);
			}else{
				ans[p[3]]=ask(dfo[p[2]])-ask(dfn[p[2]]-1);
			}
		}
		for(auto&p:ev) if(p[1]==0) change(p[2],-1);
	}
	for(int i=1;i<=n;i++){
		if(!oncyc[i]) continue;
		vector<int> f;
		int ver=i;
		while(oncyc[ver]){
			f.pb(ver);
			oncyc[ver]=false;
			ver=prv[ver];
		}
		int sz=(int)f.size();
		d[0]=0;
		for(int i=1;i<sz;i++){
			ll w=calc(a[f[i]]<=a[f[i-1]]?a[f[i-1]]-a[f[i]]:a[f[i-1]]+l-a[f[i]]);
			d[i]=d[i-1]+w;
		}
		ll len=d[sz-1]+calc(a[f[0]]<=a[f.back()]?a[f.back()]-a[f[0]]:a[f.back()]+l-a[f[0]]);
		if(f.size()==1) len=calc(l);
		vector<ll> xs1,xs2;
		for(int i=0;i<sz;i++){
			for(auto&p:my[f[i]]){
				xs1.pb(d[i]-p);
				xs2.pb(d[i]-p-divb(d[i]-p,len));
			}
			for(auto&p:qs[f[i]]){
				xs1.pb(-(p.fi-d[i]));
				xs2.pb(len-(p.fi-d[i]-divb(p.fi-d[i],len)));
			}
		}
		sort(xs1.begin(),xs1.end());
		xs1.erase(unique(xs1.begin(),xs1.end()),xs1.end());
		sort(xs2.begin(),xs2.end());
		xs2.erase(unique(xs2.begin(),xs2.end()),xs2.end());
		int sz1=(int)xs1.size(),sz2=(int)xs2.size();
		vector<ll> vec;
		for(int i=0;i<sz;i++){
			for(auto&p:my[f[i]]){
				int idx1=(int)(lower_bound(xs1.begin(),xs1.end(),d[i]-p)-xs1.begin());
				int idx2=(int)(lower_bound(xs2.begin(),xs2.end(),d[i]-p-divb(d[i]-p,len))-xs2.begin());
				modifyx(idx1,idx2,divb(d[i]-p,len),1);
				vec.pb(d[i]-p);
			}
			for(auto&p:qs[f[i]]){
				int idx1=(int)(lower_bound(xs1.begin(),xs1.end(),-(p.fi-d[i]))-xs1.begin());
				int idx2=(int)(lower_bound(xs2.begin(),xs2.end(),len-(p.fi-d[i]-divb(p.fi-d[i],len)))-xs2.begin());
				pair<ll,int> tmp=queryx(idx1,sz1-1,0,sz2-1);
				ll s=(tmp.fi+tmp.se*1ll*divb(p.fi-d[i],len))/len+tmp.se;
				s=0;
				for(auto&pp:vec){
					if(pp+(p.fi-d[i])<0) continue;
					s+=(divb(pp,len)+divb(p.fi-d[i],len)+len)/len;
				}
				ans[p.se]+=s+queryx(idx1,sz1-1,idx2,sz2-1).se;
			}
		}
		//clrx(root,0,sz1-1,0,sz2-1);
		while(tsz){
			ls[tsz]=rs[tsz]=sum[tsz]=cnt[tsz]=0;
			tsz--;
		}
		for(int i=0;i<sz;i++){
			for(auto&p:my[f[i]]){
				int idx1=(int)(lower_bound(xs1.begin(),xs1.end(),d[i]-p)-xs1.begin());
				int idx2=(int)(lower_bound(xs2.begin(),xs2.end(),d[i]-p-divb(d[i]-p,len))-xs2.begin());
				modifyx(idx1,idx2,-divb(d[i]-p,len),-1);
			}
		}
		for(int i=0;i<sz;i++){
			for(int j=0;j<i;j++){
				for(auto&p:my[f[i]]){
					for(auto&pp:qs[f[j]]){
						ans[pp.se]+=max(0ll,pp.fi-(i<=j?d[j]-d[i]:d[j]+len-d[i])-p+len)/len;
					}
				}
			}
		}
	}
	for(int i=1;i<=q;i++) printf("%lld\n",ans[i]);
}
# Verdict Execution time Memory Grader output
1 Correct 9 ms 34136 KB Output is correct
2 Correct 12 ms 52496 KB Output is correct
3 Correct 185 ms 208672 KB Output is correct
4 Correct 36 ms 218388 KB Output is correct
5 Correct 35 ms 217364 KB Output is correct
6 Correct 33 ms 214928 KB Output is correct
7 Correct 32 ms 215920 KB Output is correct
8 Correct 31 ms 215636 KB Output is correct
9 Correct 32 ms 219988 KB Output is correct
10 Correct 35 ms 222928 KB Output is correct
11 Correct 34 ms 222924 KB Output is correct
12 Correct 75 ms 234576 KB Output is correct
13 Correct 104 ms 207440 KB Output is correct
14 Correct 68 ms 127316 KB Output is correct
15 Correct 33 ms 215876 KB Output is correct
16 Correct 33 ms 215824 KB Output is correct
17 Correct 33 ms 215888 KB Output is correct
18 Correct 31 ms 217112 KB Output is correct
19 Correct 32 ms 215828 KB Output is correct
20 Correct 32 ms 217104 KB Output is correct
# Verdict Execution time Memory Grader output
1 Runtime error 82 ms 48396 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 9 ms 34136 KB Output is correct
2 Correct 12 ms 52496 KB Output is correct
3 Correct 185 ms 208672 KB Output is correct
4 Correct 36 ms 218388 KB Output is correct
5 Correct 35 ms 217364 KB Output is correct
6 Correct 33 ms 214928 KB Output is correct
7 Correct 32 ms 215920 KB Output is correct
8 Correct 31 ms 215636 KB Output is correct
9 Correct 32 ms 219988 KB Output is correct
10 Correct 35 ms 222928 KB Output is correct
11 Correct 34 ms 222924 KB Output is correct
12 Correct 75 ms 234576 KB Output is correct
13 Correct 104 ms 207440 KB Output is correct
14 Correct 68 ms 127316 KB Output is correct
15 Correct 33 ms 215876 KB Output is correct
16 Correct 33 ms 215824 KB Output is correct
17 Correct 33 ms 215888 KB Output is correct
18 Correct 31 ms 217112 KB Output is correct
19 Correct 32 ms 215828 KB Output is correct
20 Correct 32 ms 217104 KB Output is correct
21 Runtime error 82 ms 48396 KB Execution killed with signal 11
22 Halted 0 ms 0 KB -