ODT&(Avito Code Challenge 2018 G题)

Posted 2020-11-09 wang9897

记录大模拟一般新数据结构(ODT)

#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define s second
#define f first
#define inc(i,l,r) for(int i=l;i<=r;i++)
#define dec(i,r,l) for(int i=r;i>=l;i--)
const int MAXN=2e5+10;
const ll mod=998244353;
using namespace std;
ll read(){  
    ll x=0,f=1;char ch=getchar();  
    while(!isdigit(ch)){if(ch==‘-‘)f=-1;ch=getchar();}  
    while(isdigit(ch))x=x*10+ch-‘0‘,ch=getchar();  
    return f*x;  
}
set<pii>s[MAXN];
set<pii>::iterator ite,ip,id;
int n,q;
typedef struct node{
	ll tag1,tag2,sum;int l,r;
}node;
node d[MAXN<<2];
void push(int x){
	if(d[x].tag1>1){
		d[x<<1].tag1*=d[x].tag1;d[x<<1].tag1%=mod;
		d[x<<1|1].tag1*=d[x].tag1;d[x<<1|1].tag1%=mod;
		d[x<<1].tag2*=d[x].tag1;d[x<<1].tag2%=mod;
		d[x<<1|1].tag2*=d[x].tag1;d[x<<1|1].tag2%=mod;
		d[x<<1].sum*=d[x].tag1;d[x<<1].sum%=mod;
		d[x<<1|1].sum*=d[x].tag1;d[x<<1|1].sum%=mod;
		d[x].tag1=1; 
	}
	if(d[x].tag2){
		d[x<<1].tag2+=d[x].tag2;d[x<<1].tag2%=mod;
		d[x<<1|1].tag2+=d[x].tag2;d[x<<1|1].tag2%=mod;
		d[x<<1].sum+=1ll*(d[x<<1].r-d[x<<1].l+1)*d[x].tag2;
		d[x<<1].sum%=mod;
		d[x<<1|1].sum+=1ll*(d[x<<1|1].r-d[x<<1|1].l+1)*d[x].tag2;
		d[x<<1|1].sum%=mod;
		d[x].tag2=0;
	}
}
void up(int x){d[x].sum=d[x<<1].sum+d[x<<1|1].sum;}
void built(int rt,int l,int r){
	if(l==r){d[rt].l=d[rt].r=l;d[rt].tag1=1;d[rt].tag2=d[rt].sum=0;return ;}
	int mid=(l+r)>>1;
	built(rt<<1,l,mid);
	built(rt<<1|1,mid+1,r);
	d[rt].l=d[rt<<1].l;d[rt].r=d[rt<<1|1].r;
	d[rt].tag1=1;d[rt].tag2=d[rt].sum=0;
	up(rt);
}
void update1(int rt,int l,int r,int ql,int qr){
	if(ql<=l&&r<=qr){
		d[rt].tag1*=2ll;d[rt].tag2*=2ll;d[rt].sum*=2ll;
		d[rt].tag1%=mod;d[rt].tag2%=mod;d[rt].sum%=mod;
		return ;
	}
	push(rt);
	int mid=(l+r)>>1;
	if(ql<=mid)update1(rt<<1,l,mid,ql,qr);
	if(qr>mid)update1(rt<<1|1,mid+1,r,ql,qr);
	up(rt);
}
//新建 
void update2(int rt,int l,int r,int ql,int qr){
	if(ql<=l&&r<=qr){
		d[rt].tag2+=1ll;d[rt].sum+=1ll*(r-l+1);
		d[rt].tag2%=mod;d[rt].sum%=mod;
		return ;
	}
	push(rt);
	int mid=(l+r)>>1;
	if(ql<=mid)update2(rt<<1,l,mid,ql,qr);
	if(qr>mid)update2(rt<<1|1,mid+1,r,ql,qr);
	up(rt);
}
ll sum=0;
void querty(int rt,int l,int r,int ql,int qr){
	if(ql<=l&&r<=qr){
		sum+=d[rt].sum;sum%=mod;
		return ;
	}
	int mid=(l+r)>>1;
	push(rt);
	if(ql<=mid)querty(rt<<1,l,mid,ql,qr);
	if(qr>mid)querty(rt<<1|1,mid+1,r,ql,qr);
	up(rt);
}
int main(){
	n=read();q=read(); 
	built(1,1,n);
	int op,l,r,vul;
	for(int i=1;i<=q;i++){
		op=read();l=read();r=read();
		if(op==1){
			vul=read();int flag1=0,flag2=0;
			ite=s[vul].lower_bound(make_pair(l,0));
			if(s[vul].begin()==s[vul].end()){
				s[vul].insert(make_pair(l,r));
				update2(1,1,n,l,r);
				continue;
			}
			//	cout<<ite->first<<" "<<ite->second<<endl;
		//	cout<<s[vul].size()<<"----"<<endl;
			if(ite==s[vul].end()){
				//cout<<"sb"<<endl;
				ite--;
				if(ite->second<l){
				s[vul].insert(make_pair(l,r));
				update2(1,1,n,l,r);
				continue;					
				}
				else{
					int l1=ite->first;int r1=ite->second;
					s[vul].erase(make_pair(l1,r1));
					s[vul].insert(make_pair(l1,l-1));
					s[vul].insert(make_pair(l,r1));
				}
			}
			else if(ite==s[vul].begin()&&ite->first!=l){
			//	cout<<"AC"<<endl;
				if(r<ite->first){
					s[vul].insert(make_pair(l,r));
					update2(1,1,n,l,r);continue;
				}
				else{
					flag1=1;
					//cout<<"AC"<<endl;
					//cout<<ite->first<<" "<<ite->second<<endl;
					s[vul].insert(make_pair(l,ite->first-1));
					update2(1,1,n,l,ite->first-1);
				}
			}
			else if(ite->first!=l){
				//cout<<ite->first<<" "<<ite->second<<endl;
				int lx=ite->first;ite--;
				if(ite->second<l){
					flag1=1;
					if(lx<=r){
					s[vul].insert(make_pair(l,lx-1));
					update2(1,1,n,l,lx-1);}
					else{
						s[vul].insert(make_pair(l,r));
						update2(1,1,n,l,r);
						continue;
					}
				}
				else{
					int l1=ite->first;int r1=ite->second;
					//cout<<l1<<" "<<r1<<endl;
					s[vul].erase(make_pair(l1,r1));
					s[vul].insert(make_pair(l1,l-1));
					s[vul].insert(make_pair(l,r1));
				}
			}
		//	cout<<"SB"<<endl;
			ip=s[vul].lower_bound(make_pair(r,0));
			//if(ip==s[vul].end())cout<<"Yes"<<endl;
			//cout<<ip->first<<" "<<ip->second<<endl;
			if(ip==s[vul].end()||ip->first>r){
				ip--;
				if(ip->second<r){
					flag2=1;
					//cout<<"AC"<<endl;
					//cout<<ip->second<<endl;
					update2(1,1,n,ip->second+1,r);
					//if(r==ip->second+1)s[vul].insert(make_pair(r,r));
					if(r!=ip->second+1) s[vul].insert(make_pair(ip->second+1,r-1)),flag2=2;
					s[vul].insert(make_pair(r,r));
				}
				else{
					int l1=ip->first;int r1=ip->second;
					//cout<<l1<<" "<<r1<<endl;
					s[vul].erase(make_pair(l1,r1));
					if(l1!=r) s[vul].insert(make_pair(l1,r-1));
					s[vul].insert(make_pair(r,r));
					if(r!=r1) s[vul].insert(make_pair(r+1,r1));
				}
			}
			else{
				int l1=ip->first;int r1=ip->second;
				//cout<<l1<<" "<<r1<<endl;
				s[vul].erase(make_pair(l1,r1));
				s[vul].insert(make_pair(r,r));
				if(r!=r1) s[vul].insert(make_pair(r+1,r1));
			}
			ite=s[vul].lower_bound(make_pair(l,0));
			ip=s[vul].lower_bound(make_pair(r,0));
			if(flag2==2)ip--;
			//cout<<ite->first<<" "<<ite->second<<endl;
			//cout<<flag1<<endl;
			id=s[vul].end();
			if(!flag1) update1(1,1,n,ite->first,ite->second);
			//else id=ite;
			id=ite;ite++;
			//cout<<flag1<<endl;
			if(ite!=s[vul].end()&&id!=ip){
			//cout<<"AC"<<endl;
			for(;ite!=ip;ite++){
				//cout<<"sb"<<endl;
				if(ite->first-id->second>1){
					update2(1,1,n,id->second+1,ite->first-1);
				}
				update1(1,1,n,ite->first,ite->second);
				id=ite;
			}
			if(ip->first-id->second>1){
				//cout<<"sb"<<endl;
				update2(1,1,n,id->second+1,ip->first-1);			
			}
			if(!flag2) update1(1,1,n,ip->first,ip->second);}
			//cout<<flag2<<endl;
			ite=s[vul].lower_bound(make_pair(l,0));
			ip=s[vul].lower_bound(make_pair(r,0));
			ip++;
			s[vul].erase(ite,ip);
			s[vul].insert(make_pair(l,r));
		}
		else{
			sum=0;
			//cout<<l<<" "<<r<<endl;
			querty(1,1,n,l,r);
			printf("%lld\n",sum);
		}
	}
	return 0;
}