oj.uz

답안 #544220

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
544220 2022-04-01T12:21:22 Z Antekb Fire (JOI20_ho_t5) C++14
6 / 100
 1000 ms 25072 KB 
#include<bits/stdc++.h>
#define st first
#define nd second
using namespace std;
using ll = long long;
const int N=1<<18;
int tab[N], L[N], R[N];
int ile[N+N];
ll sum[N+N];
set<int> S;
int n;
int pra(int i){
	//cout<<i<<" "<<ile[n+N+1]<<endl;
	//assert(ile[N+n+1]);
	for(i+=N; i>0; i/=2){
		if((i&1)==0 && ile[i+1]){
			i++;
			while(i<N){
				if(ile[i+i])i=i+i;
				else i=i+i+1;
			}
			//cout<<"? "<<i-N<<endl;
			return i-N;
		}
	}
	assert(false);
	return 0;
}
int lew(int i){
	for(i+=N; i>0; i/=2){
		if((i&1) && ile[i-1]){
			i--;
			while(i<N){
				if(ile[i+i+1])i=i+i+1;
				else i=i+i;
			}
			//cout<<"? "<<i-N<<endl;
			return i-N;
		}
	}
	assert(false);
	return 0;
}
void upd(int i){
	if(i==0 || i==n+1)return;
	//cout<<i<<"u"<<endl;
	if(S.find(i)!=S.end())S.erase(S.find(i));
	//cout<<i<<"a"<<lew(i)<<" "<<tab[lew(i)]<<" "<<tab[i]<<"\n";
	L[i]=(tab[lew(i)]>tab[i]);
	R[i]=(tab[pra(i)]<tab[i]);
	if(L[i]^R[i]){
		S.insert(i);
	}
	//cout<<i<<"u"<<endl;
}
void usun(int i){
	//cout<<"- "<<i<<endl;
	int ii=i;
	for(i+=N; i>0; i>>=1){
		sum[i]-=tab[ii];
		ile[i]--;
		//assert(ile[i]>=0);
	}
	upd(lew(ii));
	upd(pra(ii));
	if(S.find(ii)!=S.end())S.erase(S.find(ii));
}
void dodaj(int i){
	int ii=i;
	for(i+=N; i>0; i>>=1){
		sum[i]+=tab[ii];
		ile[i]++;
	}
}
ll quer(int k){
	ll ans=0;
	int v=1;
	while(v<N){
		if(ile[v+v]<=k){
			k-=ile[v+v];
			ans+=sum[v+v];
			v=v+v+1;
		}
		else v=v+v;
	}
	if(k)ans+=k*1ll*tab[v-N];
	return ans;
}
int main(){
	int q;
	cin>>n>>q;
	tab[0]=0;
	ile[N]=1;
	for(int i=1; i<=n; i++){
		cin>>tab[i];
		ile[N+i]=1;
		sum[N+i]=tab[i];
	}
	tab[n+1]=1e9+5;
	ile[n+1+N]=1;
	for(int i=N-1; i>0; i--){
		ile[i]=ile[i+i]+ile[i+i+1];
		sum[i]=sum[i+i]+sum[i+i+1];
	}
	for(int i=1; i<=n; i++){
		upd(i);
		//cout<<L[i]<<" "<<R[i]<<"\n";
	}
	vector<pair<pair<int, int>, pair<int, int> > > Q(q);
	for(int i=0; i<q; i++){
		Q[i].st.nd=i;
		cin>>Q[i].st.st>>Q[i].nd.st>>Q[i].nd.nd;
		Q[i].nd.nd++;
	}
	vector<ll> ans(q);
	sort(Q.begin(), Q.end());
	int wsk=0;
	//assert(S.find(0)==S.end());
	for(int t=1; t<=n; t++){
		//cout<<t<<"aaa"<<endl;
		vector<int> V, V2;
		for(auto it=S.begin(); it!=S.end(); it++){
			//cout<<*it<<"\n";
			//V.push_back(*it);
			if(L[*it])V.push_back(*it);
			else V2.push_back(*it);
		}
		/*for(int i:V)
		{
			//assert(i!=0);
			if(L[i]){
				//cout<<"- "<<i<<endl;
				usun(i);
			}
			else{
				//cout<<"+ "<<i<<endl;
				dodaj(i);
			}
		}*/
		for(int i:V2)dodaj(i);
		for(int i:V)usun(i);
		//return 0;
		/*if(t==1){
			cout<<quer(1)<<" "<<quer(2)<<" "<<quer(3)<<" "<<quer(4)<<"\n";
		}*/
		while(wsk<q && Q[wsk].st.st==t){
			ans[Q[wsk].st.nd]=quer(Q[wsk].nd.nd)-quer(Q[wsk].nd.st);
			wsk++;
		}
	}
	for(int i=0; i<q; i++)cout<<ans[i]<<"\n";
}

Subtask #1
0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3412 KB Output is correct
2 Incorrect 3 ms 3412 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3412 KB Output is correct
2 Execution timed out 1086 ms 24972 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3412 KB Output is correct
2 Execution timed out 1087 ms 25072 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 371 ms 22620 KB Output is correct
2 Correct 385 ms 22512 KB Output is correct
3 Correct 376 ms 22968 KB Output is correct
4 Correct 394 ms 22924 KB Output is correct
5 Correct 377 ms 22648 KB Output is correct
6 Correct 377 ms 22464 KB Output is correct
7 Correct 373 ms 22768 KB Output is correct
8 Correct 382 ms 22728 KB Output is correct
9 Correct 381 ms 22704 KB Output is correct
10 Correct 374 ms 22720 KB Output is correct
11 Correct 379 ms 22844 KB Output is correct
12 Correct 377 ms 22884 KB Output is correct
13 Correct 381 ms 22764 KB Output is correct
14 Correct 378 ms 22732 KB Output is correct

Subtask #5
0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3412 KB Output is correct
2 Incorrect 3 ms 3412 KB Output isn't correct
3 Halted 0 ms 0 KB -