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답안 #444804

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
444804 2021-07-15T11:38:30 Z kig9981 별자리 3 (JOI20_constellation3) C++17
35 / 100
 625 ms 91964 KB 
#include <bits/stdc++.h>

#ifdef NON_SUBMIT
#define TEST(n) (n)
#define tout cerr
#else
#define TEST(n) ((void)0)
#define tout cin
#endif

using namespace std;

const int SZ=1<<18;
vector<int> adj[200001], U[200001], P;
vector<pair<int,int>> Q[200001];
int node_cnt, L[200002][18], R[200002][18], A[200002], numL[200002], numR[200002], LR[200002], RR[200002], tree[2*SZ];
long long Ltree[200003], Rtree[200003], LD[200002], RD[200002];

void set_tree(int n, int v) {for(tree[n+=SZ]=v;n>>=1;) tree[n]=max(tree[2*n],tree[2*n+1]);}
void add_tree(long long *tree, int n, long long v) {for(;n<200003;n+=n&-n) tree[n]+=v;}
void add_tree(long long *tree, int s, int e, long long v) {add_tree(tree,s,v); add_tree(tree,e+1,-v);}

void dfs(int c, int *num, int *R)
{
	num[c]=++node_cnt;
	for(auto n: adj[c]) dfs(n,num,R);
	R[c]=node_cnt;
}

int get_lpos(int v)
{
	int bit=1, s=0, e=SZ-1;
	while(s<e) {
		int m=(s+e)>>1;
		if(tree[2*bit+1]>=v) tie(bit,s)=make_pair(2*bit+1,m+1);
		else tie(bit,e)=make_pair(2*bit,m);
	}
	return s;
}

int get_rpos(int v)
{
	int bit=1, s=0, e=SZ-1;
	while(s<e) {
		int m=(s+e)>>1;
		if(tree[2*bit]>=v) tie(bit,e)=make_pair(2*bit,m);
		else tie(bit,s)=make_pair(2*bit+1,m+1);
	}
	return s;
}

int get_max(int s, int e)
{
	int ret=-1;
	for(s+=SZ,e+=SZ;s<=e;s>>=1,e>>=1) {
		if(s&1) ret=max(ret,tree[s++]);
		if(~e&1) ret=max(ret,tree[e--]);
	}
	return ret;
}

void get_mp(int n1, int n2, int v, int bit=1, int s=0, int e=SZ-1)
{
	int m=(s+e)>>1;
	if(n2<n1 || n2<s || e<n1 || tree[bit]<v) return;
	if(s==e) {
		P.push_back(m);
		return;
	}
	get_mp(n1,n2,v,2*bit,s,m);
	get_mp(n1,n2,v,2*bit+1,m+1,e);
}

long long get_sum(long long *tree, int n)
{
	long long ret=0;
	for(;n;n-=n&-n) ret+=tree[n];
	return ret;
}

long long get_LD(int x)
{
	if(R[x][0]-x<2) return LD[x];
	long long temp=0; P.clear();
	get_mp(x+1,R[x][0]-1,get_max(x+1,R[x][0]-1));
	temp=RD[P[0]];
	for(auto p: P) temp+=LD[p];
	return LD[x]=min(LD[x],temp);
}

long long get_RD(int x)
{
	if(x-L[x][0]<2) return RD[x];
	long long temp=0; P.clear();
	get_mp(L[x][0]+1,x-1,get_max(L[x][0]+1,x-1));
	temp=RD[P[0]];
	for(auto p: P) temp+=LD[p];
	return RD[x]=min(RD[x],temp);
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(NULL); cout.tie(NULL);
	TEST(freopen("input.txt","r",stdin));
	TEST(freopen("output.txt","w",stdout));
	TEST(freopen("debug.txt","w",stderr));
	int N, M;
	long long S=0;
	cin>>N; A[0]=A[N+1]=0x7fffffff;
	for(int i=1;i<=N;i++) {
		cin>>A[i];
		U[A[i]].push_back(i);
	}
	cin>>M;
	for(int i=0;i<M;i++) {
		int x, y, c;
		cin>>x>>y>>c;
		Q[y].emplace_back(x,c);
		S+=c;
	}
	set_tree(0,A[0]);
	for(int i=0;++i<=N;) {
		adj[L[i][0]=get_lpos(A[i])].push_back(i);
		set_tree(i,A[i]);
	}
	dfs(0,numL,LR); numL[N+1]=LR[N+1]=++node_cnt;
	memset(tree,0,sizeof(tree));
	set_tree(N+1,A[0]); R[N+1][0]=N+1;
	for(int i=N+1;--i;) {
		adj[R[i][0]=get_rpos(A[i])].push_back(i);
		adj[i].clear();
		set_tree(i,A[i]);
	}
	set_tree(0,A[0]);
	node_cnt=0; dfs(N+1,numR,RR); numR[0]=RR[0]=++node_cnt;
	R[0][0]=N+1; L[N+1][0]=0;
	for(int j=1;j<18;j++) for(int i=N+2;--i>=0;) {
		L[i][j]=L[L[i][j-1]][j-1];
		R[i][j]=R[R[i][j-1]][j-1];
	}
	for(int y=0;++y<=N;) {
		for(auto[x,c]: Q[y]) {
			int l=x, r=x;
			long long v;
			for(int j=18;--j>=0;) {
				if(A[L[l][j]]<y) l=L[l][j];
				if(A[R[r][j]]<y) r=R[r][j];
			}
			l=L[l][0]; r=R[r][0];
			v=get_sum(Ltree,numL[x])+get_sum(Rtree,numR[x])-c;
			LD[l]=min(LD[l],v); RD[r]=min(RD[r],v);
		}
		for(auto x: U[y]) {
			add_tree(Ltree,numL[x],LR[x],get_RD(x));
			add_tree(Rtree,numR[x],RR[x],get_LD(x));
		}
	}
	cout<<S+get_LD(0)<<'\n';
	return 0;
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 16588 KB Output is correct
2 Correct 10 ms 16588 KB Output is correct
3 Correct 9 ms 16684 KB Output is correct
4 Correct 10 ms 16588 KB Output is correct
5 Correct 10 ms 16592 KB Output is correct
6 Correct 10 ms 16588 KB Output is correct
7 Correct 9 ms 16552 KB Output is correct
8 Correct 9 ms 16588 KB Output is correct
9 Correct 10 ms 16588 KB Output is correct
10 Correct 10 ms 16656 KB Output is correct
11 Correct 10 ms 16592 KB Output is correct
12 Correct 10 ms 16612 KB Output is correct
13 Correct 11 ms 16660 KB Output is correct
14 Correct 11 ms 16592 KB Output is correct
15 Correct 10 ms 16620 KB Output is correct
16 Correct 10 ms 16588 KB Output is correct
17 Correct 11 ms 16648 KB Output is correct
18 Correct 12 ms 16588 KB Output is correct
19 Correct 11 ms 16588 KB Output is correct
20 Correct 11 ms 16668 KB Output is correct
21 Correct 11 ms 16652 KB Output is correct
22 Correct 11 ms 16592 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 16588 KB Output is correct
2 Correct 10 ms 16588 KB Output is correct
3 Correct 9 ms 16684 KB Output is correct
4 Correct 10 ms 16588 KB Output is correct
5 Correct 10 ms 16592 KB Output is correct
6 Correct 10 ms 16588 KB Output is correct
7 Correct 9 ms 16552 KB Output is correct
8 Correct 9 ms 16588 KB Output is correct
9 Correct 10 ms 16588 KB Output is correct
10 Correct 10 ms 16656 KB Output is correct
11 Correct 10 ms 16592 KB Output is correct
12 Correct 10 ms 16612 KB Output is correct
13 Correct 11 ms 16660 KB Output is correct
14 Correct 11 ms 16592 KB Output is correct
15 Correct 10 ms 16620 KB Output is correct
16 Correct 10 ms 16588 KB Output is correct
17 Correct 11 ms 16648 KB Output is correct
18 Correct 12 ms 16588 KB Output is correct
19 Correct 11 ms 16588 KB Output is correct
20 Correct 11 ms 16668 KB Output is correct
21 Correct 11 ms 16652 KB Output is correct
22 Correct 11 ms 16592 KB Output is correct
23 Correct 14 ms 17100 KB Output is correct
24 Correct 13 ms 17100 KB Output is correct
25 Correct 14 ms 17100 KB Output is correct
26 Correct 14 ms 17108 KB Output is correct
27 Correct 14 ms 17008 KB Output is correct
28 Correct 14 ms 17116 KB Output is correct
29 Correct 14 ms 17108 KB Output is correct
30 Correct 14 ms 17100 KB Output is correct
31 Correct 15 ms 17100 KB Output is correct
32 Correct 14 ms 17100 KB Output is correct
33 Correct 13 ms 17096 KB Output is correct
34 Correct 14 ms 17100 KB Output is correct
35 Correct 14 ms 17100 KB Output is correct
36 Correct 13 ms 17144 KB Output is correct
37 Correct 14 ms 17100 KB Output is correct
38 Correct 14 ms 17208 KB Output is correct
39 Correct 13 ms 17056 KB Output is correct
40 Correct 13 ms 17060 KB Output is correct
41 Correct 12 ms 16988 KB Output is correct
42 Correct 12 ms 17024 KB Output is correct
43 Correct 13 ms 17100 KB Output is correct
44 Correct 13 ms 16988 KB Output is correct

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 16588 KB Output is correct
2 Correct 10 ms 16588 KB Output is correct
3 Correct 9 ms 16684 KB Output is correct
4 Correct 10 ms 16588 KB Output is correct
5 Correct 10 ms 16592 KB Output is correct
6 Correct 10 ms 16588 KB Output is correct
7 Correct 9 ms 16552 KB Output is correct
8 Correct 9 ms 16588 KB Output is correct
9 Correct 10 ms 16588 KB Output is correct
10 Correct 10 ms 16656 KB Output is correct
11 Correct 10 ms 16592 KB Output is correct
12 Correct 10 ms 16612 KB Output is correct
13 Correct 11 ms 16660 KB Output is correct
14 Correct 11 ms 16592 KB Output is correct
15 Correct 10 ms 16620 KB Output is correct
16 Correct 10 ms 16588 KB Output is correct
17 Correct 11 ms 16648 KB Output is correct
18 Correct 12 ms 16588 KB Output is correct
19 Correct 11 ms 16588 KB Output is correct
20 Correct 11 ms 16668 KB Output is correct
21 Correct 11 ms 16652 KB Output is correct
22 Correct 11 ms 16592 KB Output is correct
23 Correct 14 ms 17100 KB Output is correct
24 Correct 13 ms 17100 KB Output is correct
25 Correct 14 ms 17100 KB Output is correct
26 Correct 14 ms 17108 KB Output is correct
27 Correct 14 ms 17008 KB Output is correct
28 Correct 14 ms 17116 KB Output is correct
29 Correct 14 ms 17108 KB Output is correct
30 Correct 14 ms 17100 KB Output is correct
31 Correct 15 ms 17100 KB Output is correct
32 Correct 14 ms 17100 KB Output is correct
33 Correct 13 ms 17096 KB Output is correct
34 Correct 14 ms 17100 KB Output is correct
35 Correct 14 ms 17100 KB Output is correct
36 Correct 13 ms 17144 KB Output is correct
37 Correct 14 ms 17100 KB Output is correct
38 Correct 14 ms 17208 KB Output is correct
39 Correct 13 ms 17056 KB Output is correct
40 Correct 13 ms 17060 KB Output is correct
41 Correct 12 ms 16988 KB Output is correct
42 Correct 12 ms 17024 KB Output is correct
43 Correct 13 ms 17100 KB Output is correct
44 Correct 13 ms 16988 KB Output is correct
45 Correct 624 ms 72196 KB Output is correct
46 Correct 611 ms 71488 KB Output is correct
47 Correct 594 ms 70920 KB Output is correct
48 Correct 616 ms 72076 KB Output is correct
49 Correct 594 ms 70600 KB Output is correct
50 Correct 605 ms 70476 KB Output is correct
51 Correct 625 ms 70540 KB Output is correct
52 Correct 615 ms 71788 KB Output is correct
53 Correct 600 ms 71632 KB Output is correct
54 Correct 567 ms 77884 KB Output is correct
55 Correct 582 ms 75716 KB Output is correct
56 Correct 552 ms 74432 KB Output is correct
57 Correct 539 ms 73872 KB Output is correct
58 Correct 410 ms 73796 KB Output is correct
59 Correct 403 ms 73412 KB Output is correct
60 Runtime error 181 ms 91964 KB Execution killed with signal 11
61 Halted 0 ms 0 KB -