Submission #528161

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
528161	2022-02-19T14:34:27 Z	Jasiekstrz	Group Photo (JOI21_ho_t3)	C++17	100 / 100	212 ms	134468 KB

Main

#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=5e3;
int g[N+10];
int f[N+10][N+10];
int c[N+10][N+10];
int dp[N+10];
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		int x;
		cin>>x;
		g[x]=i;
	}
	for(int i=1;i<=n;i++)
	{
		for(int j=n-1;j>=i;j--)
			f[i][j]=f[i][j+1]+(g[j+1]<g[i]);
	}
	for(int i=n;i>=1;i--)
	{
		for(int j=i;j<=n;j++)
			c[i][j]=c[i+1][j]+j-i+2*f[i][j]-f[i][i];
	}
	//cerr<<f[1][1]<<"\n";
	for(int i=1;i<=n;i++)
	{
		dp[i]=1e9+7;
		for(int j=1;j<=i;j++)
			dp[i]=min(dp[i],dp[j-1]+c[j][i]);
		//cerr<<i<<": "<<dp[i]<<"\n";
	}
	cout<<dp[n]<<"\n";
	return 0;
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	0 ms	324 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	0 ms	324 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	456 KB	Output is correct
12	Correct	1 ms	464 KB	Output is correct
13	Correct	1 ms	464 KB	Output is correct
14	Correct	1 ms	464 KB	Output is correct
15	Correct	0 ms	464 KB	Output is correct
16	Correct	1 ms	464 KB	Output is correct
17	Correct	0 ms	464 KB	Output is correct
18	Correct	1 ms	464 KB	Output is correct
19	Correct	1 ms	456 KB	Output is correct
20	Correct	1 ms	464 KB	Output is correct

Subtask #3
32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	0 ms	324 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	456 KB	Output is correct
12	Correct	1 ms	464 KB	Output is correct
13	Correct	1 ms	464 KB	Output is correct
14	Correct	1 ms	464 KB	Output is correct
15	Correct	0 ms	464 KB	Output is correct
16	Correct	1 ms	464 KB	Output is correct
17	Correct	0 ms	464 KB	Output is correct
18	Correct	1 ms	464 KB	Output is correct
19	Correct	1 ms	456 KB	Output is correct
20	Correct	1 ms	464 KB	Output is correct
21	Correct	2 ms	2000 KB	Output is correct
22	Correct	2 ms	1984 KB	Output is correct
23	Correct	2 ms	2000 KB	Output is correct
24	Correct	1 ms	1988 KB	Output is correct
25	Correct	1 ms	2000 KB	Output is correct
26	Correct	1 ms	2000 KB	Output is correct
27	Correct	2 ms	2000 KB	Output is correct
28	Correct	1 ms	2000 KB	Output is correct
29	Correct	1 ms	2000 KB	Output is correct
30	Correct	2 ms	2000 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	0 ms	324 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	456 KB	Output is correct
12	Correct	1 ms	464 KB	Output is correct
13	Correct	1 ms	464 KB	Output is correct
14	Correct	1 ms	464 KB	Output is correct
15	Correct	0 ms	464 KB	Output is correct
16	Correct	1 ms	464 KB	Output is correct
17	Correct	0 ms	464 KB	Output is correct
18	Correct	1 ms	464 KB	Output is correct
19	Correct	1 ms	456 KB	Output is correct
20	Correct	1 ms	464 KB	Output is correct
21	Correct	2 ms	2000 KB	Output is correct
22	Correct	2 ms	1984 KB	Output is correct
23	Correct	2 ms	2000 KB	Output is correct
24	Correct	1 ms	1988 KB	Output is correct
25	Correct	1 ms	2000 KB	Output is correct
26	Correct	1 ms	2000 KB	Output is correct
27	Correct	2 ms	2000 KB	Output is correct
28	Correct	1 ms	2000 KB	Output is correct
29	Correct	1 ms	2000 KB	Output is correct
30	Correct	2 ms	2000 KB	Output is correct
31	Correct	6 ms	9260 KB	Output is correct
32	Correct	6 ms	9168 KB	Output is correct
33	Correct	8 ms	9168 KB	Output is correct
34	Correct	6 ms	9296 KB	Output is correct
35	Correct	6 ms	9264 KB	Output is correct
36	Correct	6 ms	9296 KB	Output is correct
37	Correct	6 ms	9296 KB	Output is correct
38	Correct	6 ms	9296 KB	Output is correct
39	Correct	6 ms	9296 KB	Output is correct
40	Correct	6 ms	9296 KB	Output is correct

Subtask #5
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	0 ms	324 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	456 KB	Output is correct
12	Correct	1 ms	464 KB	Output is correct
13	Correct	1 ms	464 KB	Output is correct
14	Correct	1 ms	464 KB	Output is correct
15	Correct	0 ms	464 KB	Output is correct
16	Correct	1 ms	464 KB	Output is correct
17	Correct	0 ms	464 KB	Output is correct
18	Correct	1 ms	464 KB	Output is correct
19	Correct	1 ms	456 KB	Output is correct
20	Correct	1 ms	464 KB	Output is correct
21	Correct	2 ms	2000 KB	Output is correct
22	Correct	2 ms	1984 KB	Output is correct
23	Correct	2 ms	2000 KB	Output is correct
24	Correct	1 ms	1988 KB	Output is correct
25	Correct	1 ms	2000 KB	Output is correct
26	Correct	1 ms	2000 KB	Output is correct
27	Correct	2 ms	2000 KB	Output is correct
28	Correct	1 ms	2000 KB	Output is correct
29	Correct	1 ms	2000 KB	Output is correct
30	Correct	2 ms	2000 KB	Output is correct
31	Correct	6 ms	9260 KB	Output is correct
32	Correct	6 ms	9168 KB	Output is correct
33	Correct	8 ms	9168 KB	Output is correct
34	Correct	6 ms	9296 KB	Output is correct
35	Correct	6 ms	9264 KB	Output is correct
36	Correct	6 ms	9296 KB	Output is correct
37	Correct	6 ms	9296 KB	Output is correct
38	Correct	6 ms	9296 KB	Output is correct
39	Correct	6 ms	9296 KB	Output is correct
40	Correct	6 ms	9296 KB	Output is correct
41	Correct	190 ms	134320 KB	Output is correct
42	Correct	208 ms	134284 KB	Output is correct
43	Correct	185 ms	134312 KB	Output is correct
44	Correct	188 ms	134236 KB	Output is correct
45	Correct	197 ms	134340 KB	Output is correct
46	Correct	184 ms	134340 KB	Output is correct
47	Correct	212 ms	134344 KB	Output is correct
48	Correct	202 ms	134392 KB	Output is correct
49	Correct	186 ms	134344 KB	Output is correct
50	Correct	186 ms	134344 KB	Output is correct
51	Correct	205 ms	134344 KB	Output is correct
52	Correct	190 ms	134344 KB	Output is correct
53	Correct	187 ms	134360 KB	Output is correct
54	Correct	189 ms	134340 KB	Output is correct
55	Correct	194 ms	134468 KB	Output is correct

Submission #528161

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