Submission #1086235

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1086235	2024-09-09T19:35:52 Z	vako_p	Group Photo (JOI21_ho_t3)	C++14	100 / 100	255 ms	196696 KB

Main

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back

const int mxN = 5005; 
ll n,a[mxN],cnt[mxN][mxN],dp[mxN],idx[mxN];
 
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        idx[a[i]] = i;
    }
    for(int i = 1; i <= n; i++){
    	for(int j = 1; j <= n; j++){
    		cnt[i][j] = cnt[i - 1][j] + (a[i] >= j);
		}
	}
	for(int i = 1; i <= n; i++){
		ll sum = 0;
		dp[i] = 1e18;
		for(int j = i; j > 0; j--){
			sum += (i - j) + cnt[idx[j]][i + 1];
 			sum -= cnt[idx[j]][j + 1] - cnt[idx[j]][i + 1];
			dp[i] = min(dp[i], dp[j - 1] + sum);
		}
	}
	cout << dp[n];
}

Subtask #1
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	344 KB	Output is correct
8	Correct	360 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	348 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 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	344 KB	Output is correct
8	Correct	0 ms	360 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	344 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	1 ms	344 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 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	344 KB	Output is correct
8	Correct	0 ms	360 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	344 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	1 ms	344 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 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	1372 KB	Output is correct
22	Correct	1 ms	1372 KB	Output is correct
23	Correct	1 ms	1372 KB	Output is correct
24	Correct	1 ms	1368 KB	Output is correct
25	Correct	1 ms	1372 KB	Output is correct
26	Correct	1 ms	1488 KB	Output is correct
27	Correct	1 ms	1372 KB	Output is correct
28	Correct	1 ms	1624 KB	Output is correct
29	Correct	1 ms	1372 KB	Output is correct
30	Correct	1 ms	1372 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 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	344 KB	Output is correct
8	Correct	0 ms	360 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	344 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	1 ms	344 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 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	1372 KB	Output is correct
22	Correct	1 ms	1372 KB	Output is correct
23	Correct	1 ms	1372 KB	Output is correct
24	Correct	1 ms	1368 KB	Output is correct
25	Correct	1 ms	1372 KB	Output is correct
26	Correct	1 ms	1488 KB	Output is correct
27	Correct	1 ms	1372 KB	Output is correct
28	Correct	1 ms	1624 KB	Output is correct
29	Correct	1 ms	1372 KB	Output is correct
30	Correct	1 ms	1372 KB	Output is correct
31	Correct	5 ms	8540 KB	Output is correct
32	Correct	5 ms	8628 KB	Output is correct
33	Correct	6 ms	8536 KB	Output is correct
34	Correct	6 ms	8540 KB	Output is correct
35	Correct	7 ms	8540 KB	Output is correct
36	Correct	6 ms	8540 KB	Output is correct
37	Correct	5 ms	8508 KB	Output is correct
38	Correct	5 ms	8536 KB	Output is correct
39	Correct	6 ms	8540 KB	Output is correct
40	Correct	5 ms	8540 KB	Output is correct

Subtask #5
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 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	344 KB	Output is correct
8	Correct	0 ms	360 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	344 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	1 ms	344 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 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	1372 KB	Output is correct
22	Correct	1 ms	1372 KB	Output is correct
23	Correct	1 ms	1372 KB	Output is correct
24	Correct	1 ms	1368 KB	Output is correct
25	Correct	1 ms	1372 KB	Output is correct
26	Correct	1 ms	1488 KB	Output is correct
27	Correct	1 ms	1372 KB	Output is correct
28	Correct	1 ms	1624 KB	Output is correct
29	Correct	1 ms	1372 KB	Output is correct
30	Correct	1 ms	1372 KB	Output is correct
31	Correct	5 ms	8540 KB	Output is correct
32	Correct	5 ms	8628 KB	Output is correct
33	Correct	6 ms	8536 KB	Output is correct
34	Correct	6 ms	8540 KB	Output is correct
35	Correct	7 ms	8540 KB	Output is correct
36	Correct	6 ms	8540 KB	Output is correct
37	Correct	5 ms	8508 KB	Output is correct
38	Correct	5 ms	8536 KB	Output is correct
39	Correct	6 ms	8540 KB	Output is correct
40	Correct	5 ms	8540 KB	Output is correct
41	Correct	236 ms	196176 KB	Output is correct
42	Correct	212 ms	196180 KB	Output is correct
43	Correct	240 ms	196296 KB	Output is correct
44	Correct	219 ms	196432 KB	Output is correct
45	Correct	207 ms	196436 KB	Output is correct
46	Correct	224 ms	196284 KB	Output is correct
47	Correct	227 ms	196464 KB	Output is correct
48	Correct	208 ms	196688 KB	Output is correct
49	Correct	218 ms	196432 KB	Output is correct
50	Correct	235 ms	196696 KB	Output is correct
51	Correct	236 ms	196312 KB	Output is correct
52	Correct	237 ms	196312 KB	Output is correct
53	Correct	252 ms	196444 KB	Output is correct
54	Correct	250 ms	196568 KB	Output is correct
55	Correct	255 ms	196292 KB	Output is correct

Submission #1086235

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