답안 #856889

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
856889	2023-10-04T19:04:02 Z	StefanSebez	Group Photo (JOI21_ho_t3)	C++14	100 / 100	876 ms	856 KB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N=5050;
const int inf=1e17;
int n,T[N];
int a[N],ind[N],dp[N];
void Update(int i,int qval){
	while(i<=n){
		T[i]+=qval;
		i+=i&(-i);
	}
}
int Get(int i){
	int sum=0;
	while(i>=1){
		sum+=T[i];
		i-=i&(-i);
	}
	return sum;
}
/*int lc[2*N],rc[2*N],sum[2*N],nc,root;
void Update(int &c,int ss,int se,int qind,int qval){
	if(!c) c=++nc;
	if(ss==se) {sum[c]=qval;return;}
	int mid=(ss+se)/2;
	if(qind<=mid) Update(lc[c],ss,mid,qind,qval);
	else Update(rc[c],mid+1,se,qind,qval);
	sum[c]=sum[lc[c]]+sum[rc[c]];
}
int Get(int c,int ss,int se,int qs,int qe){
	if(se<ss) return 0;
	if(qs<=ss && se<=qe) return sum[c];
	else if(qe<ss || se<qs) return 0;
	int mid=(ss+se)/2;
	return Get(lc[c],ss,mid,qs,qe)+Get(rc[c],mid+1,se,qs,qe);
}*/
signed main()
{
    cin>>n;
    for(int i=1;i<=n;i++){
		cin>>a[i];
		ind[a[i]]=i;
	}
	for(int i=1;i<=n;i++) dp[i]=inf;
    dp[n+1]=0;
    for(int i=n;i>=1;i--){
		int s=0,b[n+1]={0};
		for(int j=i;j<=n;j++) Update(ind[j],1);
		for(int j=i;j<=n;j++) b[j]=Get(ind[j])-1;
		for(int j=i;j<=n;j++) Update(ind[j],-1);
		for(int j=i;j<=n;j++){
			int k=ind[j],x=Get(n)-Get(k-1);
			s-=x;
			s+=b[j];
			dp[i]=min(dp[i],dp[j+1]+s);
			Update(k,1);
		}
		for(int j=i;j<=n;j++) Update(ind[j],-1);
		/*for(int j=i;j<=n;j++) Update(root,1,n,ind[j],1);
		for(int j=i;j<=n;j++) b[j]=Get(root,1,n,1,ind[j])-1;
		for(int j=i;j<=n;j++) Update(root,1,n,ind[j],0);
		for(int j=i;j<=n;j++){
			int k=ind[j],x=Get(root,1,n,k,n);
			s-=x;
			s+=b[j];
			dp[i]=min(dp[i],dp[j+1]+s);
			Update(root,1,n,k,1);
		}
		for(int j=i;j<=n;j++) Update(root,1,n,ind[j],0);*/
	}
	cout<<dp[1]<<endl;
    return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	600 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	600 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	600 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	600 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	13 ms	344 KB	Output is correct
32	Correct	12 ms	476 KB	Output is correct
33	Correct	11 ms	344 KB	Output is correct
34	Correct	11 ms	348 KB	Output is correct
35	Correct	11 ms	472 KB	Output is correct
36	Correct	11 ms	348 KB	Output is correct
37	Correct	13 ms	348 KB	Output is correct
38	Correct	11 ms	348 KB	Output is correct
39	Correct	11 ms	724 KB	Output is correct
40	Correct	11 ms	472 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	600 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	13 ms	344 KB	Output is correct
32	Correct	12 ms	476 KB	Output is correct
33	Correct	11 ms	344 KB	Output is correct
34	Correct	11 ms	348 KB	Output is correct
35	Correct	11 ms	472 KB	Output is correct
36	Correct	11 ms	348 KB	Output is correct
37	Correct	13 ms	348 KB	Output is correct
38	Correct	11 ms	348 KB	Output is correct
39	Correct	11 ms	724 KB	Output is correct
40	Correct	11 ms	472 KB	Output is correct
41	Correct	871 ms	856 KB	Output is correct
42	Correct	874 ms	628 KB	Output is correct
43	Correct	870 ms	624 KB	Output is correct
44	Correct	872 ms	628 KB	Output is correct
45	Correct	870 ms	604 KB	Output is correct
46	Correct	863 ms	628 KB	Output is correct
47	Correct	862 ms	640 KB	Output is correct
48	Correct	876 ms	624 KB	Output is correct
49	Correct	868 ms	852 KB	Output is correct
50	Correct	864 ms	628 KB	Output is correct
51	Correct	862 ms	848 KB	Output is correct
52	Correct	859 ms	852 KB	Output is correct
53	Correct	860 ms	644 KB	Output is correct
54	Correct	876 ms	600 KB	Output is correct
55	Correct	865 ms	624 KB	Output is correct

답안 #856889

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 36.0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
36.0 / 36.0