Submission #522255

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
522255	2022-02-04T10:32:00 Z	AdamGS	Group Photo (JOI21_ho_t3)	C++17	100 / 100	639 ms	263584 KB

Main

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=5e3+7, INF=1e9+7;
int T[LIM], mniejsze[LIM], ile[LIM][LIM], ile2[LIM][LIM], dp[LIM][LIM], mi[LIM];
int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n;
	cin >> n;
	rep(i, n) {
		cin >> T[i]; --T[i];
	}
	rep(i, n) {
		rep(j, i) ++ile[T[i]][T[j]];
		for(int j=i+1; j<n; ++j) ++ile2[T[i]][T[j]];
		for(int j=n-2; j>=0; --j) {
			ile[T[i]][j]+=ile[T[i]][j+1];
			ile2[T[i]][j]+=ile2[T[i]][j+1];
		}
		for(int j=i; j<n; ++j) if(T[i]>T[j]) ++mniejsze[T[i]];
	}
	rep(i, n) {
		int akt=0;
		for(int j=i; j>0; --j) {
			akt+=mniejsze[j];
			akt-=ile[j][j]-ile[j][i+1];
			akt+=ile2[j][j]-ile2[j][i+1];
			dp[i][j]=mi[j-1]+akt;
		}
		akt-=ile[0][0]-ile[0][i+1];
		akt+=ile2[0][0]-ile2[0][i+1];
		dp[i][0]=akt;
		mi[i]=INF;
		rep(j, i+1) mi[i]=min(mi[i], dp[i][j]);
	}
	int ans=INF;
	rep(i, n) ans=min(ans, dp[n-1][i]);
	cout << ans << '\n';
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	320 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	320 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct
11	Correct	0 ms	460 KB	Output is correct
12	Correct	1 ms	460 KB	Output is correct
13	Correct	0 ms	460 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct
16	Correct	1 ms	588 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	588 KB	Output is correct
19	Correct	1 ms	588 KB	Output is correct
20	Correct	0 ms	588 KB	Output is correct

Subtask #3
32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	320 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct
11	Correct	0 ms	460 KB	Output is correct
12	Correct	1 ms	460 KB	Output is correct
13	Correct	0 ms	460 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct
16	Correct	1 ms	588 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	588 KB	Output is correct
19	Correct	1 ms	588 KB	Output is correct
20	Correct	0 ms	588 KB	Output is correct
21	Correct	2 ms	3020 KB	Output is correct
22	Correct	2 ms	3020 KB	Output is correct
23	Correct	2 ms	3020 KB	Output is correct
24	Correct	2 ms	3148 KB	Output is correct
25	Correct	2 ms	3020 KB	Output is correct
26	Correct	2 ms	3020 KB	Output is correct
27	Correct	2 ms	3020 KB	Output is correct
28	Correct	2 ms	3148 KB	Output is correct
29	Correct	2 ms	3020 KB	Output is correct
30	Correct	2 ms	3148 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	320 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct
11	Correct	0 ms	460 KB	Output is correct
12	Correct	1 ms	460 KB	Output is correct
13	Correct	0 ms	460 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct
16	Correct	1 ms	588 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	588 KB	Output is correct
19	Correct	1 ms	588 KB	Output is correct
20	Correct	0 ms	588 KB	Output is correct
21	Correct	2 ms	3020 KB	Output is correct
22	Correct	2 ms	3020 KB	Output is correct
23	Correct	2 ms	3020 KB	Output is correct
24	Correct	2 ms	3148 KB	Output is correct
25	Correct	2 ms	3020 KB	Output is correct
26	Correct	2 ms	3020 KB	Output is correct
27	Correct	2 ms	3020 KB	Output is correct
28	Correct	2 ms	3148 KB	Output is correct
29	Correct	2 ms	3020 KB	Output is correct
30	Correct	2 ms	3148 KB	Output is correct
31	Correct	15 ms	16188 KB	Output is correct
32	Correct	15 ms	16204 KB	Output is correct
33	Correct	14 ms	16180 KB	Output is correct
34	Correct	15 ms	16204 KB	Output is correct
35	Correct	14 ms	16196 KB	Output is correct
36	Correct	16 ms	16292 KB	Output is correct
37	Correct	15 ms	16192 KB	Output is correct
38	Correct	18 ms	16276 KB	Output is correct
39	Correct	15 ms	16196 KB	Output is correct
40	Correct	15 ms	16204 KB	Output is correct

Subtask #5
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	320 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct
11	Correct	0 ms	460 KB	Output is correct
12	Correct	1 ms	460 KB	Output is correct
13	Correct	0 ms	460 KB	Output is correct
14	Correct	1 ms	460 KB	Output is correct
15	Correct	1 ms	460 KB	Output is correct
16	Correct	1 ms	588 KB	Output is correct
17	Correct	1 ms	588 KB	Output is correct
18	Correct	1 ms	588 KB	Output is correct
19	Correct	1 ms	588 KB	Output is correct
20	Correct	0 ms	588 KB	Output is correct
21	Correct	2 ms	3020 KB	Output is correct
22	Correct	2 ms	3020 KB	Output is correct
23	Correct	2 ms	3020 KB	Output is correct
24	Correct	2 ms	3148 KB	Output is correct
25	Correct	2 ms	3020 KB	Output is correct
26	Correct	2 ms	3020 KB	Output is correct
27	Correct	2 ms	3020 KB	Output is correct
28	Correct	2 ms	3148 KB	Output is correct
29	Correct	2 ms	3020 KB	Output is correct
30	Correct	2 ms	3148 KB	Output is correct
31	Correct	15 ms	16188 KB	Output is correct
32	Correct	15 ms	16204 KB	Output is correct
33	Correct	14 ms	16180 KB	Output is correct
34	Correct	15 ms	16204 KB	Output is correct
35	Correct	14 ms	16196 KB	Output is correct
36	Correct	16 ms	16292 KB	Output is correct
37	Correct	15 ms	16192 KB	Output is correct
38	Correct	18 ms	16276 KB	Output is correct
39	Correct	15 ms	16196 KB	Output is correct
40	Correct	15 ms	16204 KB	Output is correct
41	Correct	612 ms	263244 KB	Output is correct
42	Correct	600 ms	263348 KB	Output is correct
43	Correct	594 ms	263364 KB	Output is correct
44	Correct	594 ms	263300 KB	Output is correct
45	Correct	611 ms	263372 KB	Output is correct
46	Correct	604 ms	263356 KB	Output is correct
47	Correct	613 ms	263584 KB	Output is correct
48	Correct	610 ms	263380 KB	Output is correct
49	Correct	629 ms	263344 KB	Output is correct
50	Correct	595 ms	263440 KB	Output is correct
51	Correct	599 ms	263364 KB	Output is correct
52	Correct	613 ms	263512 KB	Output is correct
53	Correct	598 ms	263556 KB	Output is correct
54	Correct	639 ms	263380 KB	Output is correct
55	Correct	602 ms	263568 KB	Output is correct

Submission #522255

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