Submission #1104681

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1104681	2024-10-24T08:42:44 Z	Champ_Naman	Group Photo (JOI21_ho_t3)	C++17	100 / 100	692 ms	392016 KB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define nl '\n'

int pre1[5001][5001];
int pre2[5001][5001];

inline void solve(){
	int n;
	cin>>n;
	int a[n+1];
	for(int i=1; i<=n; i++) cin>>a[i];

	for(int i=1; i<=n; i++){
		for(int j=i+1; j<=n; j++){
			pre1[a[j]][a[i]]++;
			pre2[a[j]][a[i]]++;
		}
	}

	for(int i=1; i<=n; i++){
		for(int j=1; j<=n; j++){
			pre1[i][j] += pre1[i][j-1];
		}
	}

	for(int j=1; j<=n; j++){
		for(int i=1; i<=n; i++){
			pre2[i][j] += pre2[i-1][j];
		}
	}

	int dp[n+1];
	dp[0] = 0;
	for(int i=1; i<=n; i++){
		dp[i] = 1e18;
		int add = 0;

		for(int j=i; j>0; j--){
			add += pre1[j][n] - pre1[j][i];
			add += pre2[i][j] - pre2[j][j];

			dp[i] = min(dp[i], dp[j-1] + add);
		}
	}
	
	cout<<dp[n]<<nl;
}

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(NULL);cout.tie(NULL);

	int t = 1;
	//cin>>t;
	while(t--) solve();

	return 0;
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4608 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4608 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4432 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	2 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4432 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct

Subtask #3
32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4608 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4432 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	2 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4432 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	3 ms	18768 KB	Output is correct
22	Correct	3 ms	18768 KB	Output is correct
23	Correct	3 ms	18768 KB	Output is correct
24	Correct	3 ms	18768 KB	Output is correct
25	Correct	3 ms	18936 KB	Output is correct
26	Correct	3 ms	18936 KB	Output is correct
27	Correct	3 ms	18768 KB	Output is correct
28	Correct	3 ms	18768 KB	Output is correct
29	Correct	3 ms	18768 KB	Output is correct
30	Correct	3 ms	18768 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4608 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4432 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	2 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4432 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	3 ms	18768 KB	Output is correct
22	Correct	3 ms	18768 KB	Output is correct
23	Correct	3 ms	18768 KB	Output is correct
24	Correct	3 ms	18768 KB	Output is correct
25	Correct	3 ms	18936 KB	Output is correct
26	Correct	3 ms	18936 KB	Output is correct
27	Correct	3 ms	18768 KB	Output is correct
28	Correct	3 ms	18768 KB	Output is correct
29	Correct	3 ms	18768 KB	Output is correct
30	Correct	3 ms	18768 KB	Output is correct
31	Correct	10 ms	66128 KB	Output is correct
32	Correct	9 ms	66128 KB	Output is correct
33	Correct	10 ms	66128 KB	Output is correct
34	Correct	11 ms	66128 KB	Output is correct
35	Correct	10 ms	66128 KB	Output is correct
36	Correct	10 ms	66128 KB	Output is correct
37	Correct	10 ms	66104 KB	Output is correct
38	Correct	11 ms	66128 KB	Output is correct
39	Correct	10 ms	66128 KB	Output is correct
40	Correct	10 ms	66044 KB	Output is correct

Subtask #5
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4608 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4432 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	2 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4432 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	3 ms	18768 KB	Output is correct
22	Correct	3 ms	18768 KB	Output is correct
23	Correct	3 ms	18768 KB	Output is correct
24	Correct	3 ms	18768 KB	Output is correct
25	Correct	3 ms	18936 KB	Output is correct
26	Correct	3 ms	18936 KB	Output is correct
27	Correct	3 ms	18768 KB	Output is correct
28	Correct	3 ms	18768 KB	Output is correct
29	Correct	3 ms	18768 KB	Output is correct
30	Correct	3 ms	18768 KB	Output is correct
31	Correct	10 ms	66128 KB	Output is correct
32	Correct	9 ms	66128 KB	Output is correct
33	Correct	10 ms	66128 KB	Output is correct
34	Correct	11 ms	66128 KB	Output is correct
35	Correct	10 ms	66128 KB	Output is correct
36	Correct	10 ms	66128 KB	Output is correct
37	Correct	10 ms	66104 KB	Output is correct
38	Correct	11 ms	66128 KB	Output is correct
39	Correct	10 ms	66128 KB	Output is correct
40	Correct	10 ms	66044 KB	Output is correct
41	Correct	566 ms	391752 KB	Output is correct
42	Correct	647 ms	391752 KB	Output is correct
43	Correct	594 ms	392016 KB	Output is correct
44	Correct	648 ms	391952 KB	Output is correct
45	Correct	654 ms	392004 KB	Output is correct
46	Correct	607 ms	392008 KB	Output is correct
47	Correct	650 ms	392008 KB	Output is correct
48	Correct	684 ms	392000 KB	Output is correct
49	Correct	585 ms	391964 KB	Output is correct
50	Correct	631 ms	392008 KB	Output is correct
51	Correct	638 ms	391896 KB	Output is correct
52	Correct	631 ms	392008 KB	Output is correct
53	Correct	663 ms	391984 KB	Output is correct
54	Correct	664 ms	391984 KB	Output is correct
55	Correct	692 ms	391848 KB	Output is correct

Submission #1104681

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