답안 #574323

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
574323	2022-06-08T10:23:59 Z	benson1029	Group Photo (JOI21_ho_t3)	C++14	100 / 100	356 ms	67540 KB

Main

#include<bits/stdc++.h>
using namespace std;

int n;
int a[5005];
int par[5005][5005];
int dp[5005];

int main() {
	cin >> n;
	for(int i=1; i<=n; i++) cin >> a[i];
	
	int ans = 0;
	for(int i=1; i<=n; i++) {
		for(int j=i+1; j<=n; j++) {
			if(a[i] > a[j]) {
				par[a[j]][a[i]]++;
				ans++;
			}
		}
	}
	
	for(int l=0; l<n; l++) {
		for(int i=1; i<=n-l; i++) {
			int j = i+l;
			par[i][j] += par[i+1][j] + par[i][j-1] - par[i+1][j-1];
		}
	}
	
	for(int i=1; i<=n; i++) {
		dp[i] = -1e9;
		for(int j=0; j<i; j++) {
			dp[i] = max(dp[i], dp[j] + 2*par[j+1][i] - (i-j)*(i-j-1)/2);
		}
	}
	
	cout << ans-dp[n] << "\n";
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	312 KB	Output is correct
15	Correct	1 ms	304 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	312 KB	Output is correct
18	Correct	0 ms	304 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	312 KB	Output is correct
15	Correct	1 ms	304 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	312 KB	Output is correct
18	Correct	0 ms	304 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	2 ms	1108 KB	Output is correct
22	Correct	1 ms	1108 KB	Output is correct
23	Correct	1 ms	1108 KB	Output is correct
24	Correct	1 ms	1108 KB	Output is correct
25	Correct	1 ms	1076 KB	Output is correct
26	Correct	1 ms	1108 KB	Output is correct
27	Correct	1 ms	1108 KB	Output is correct
28	Correct	1 ms	1108 KB	Output is correct
29	Correct	2 ms	1068 KB	Output is correct
30	Correct	1 ms	1108 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	312 KB	Output is correct
15	Correct	1 ms	304 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	312 KB	Output is correct
18	Correct	0 ms	304 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	2 ms	1108 KB	Output is correct
22	Correct	1 ms	1108 KB	Output is correct
23	Correct	1 ms	1108 KB	Output is correct
24	Correct	1 ms	1108 KB	Output is correct
25	Correct	1 ms	1076 KB	Output is correct
26	Correct	1 ms	1108 KB	Output is correct
27	Correct	1 ms	1108 KB	Output is correct
28	Correct	1 ms	1108 KB	Output is correct
29	Correct	2 ms	1068 KB	Output is correct
30	Correct	1 ms	1108 KB	Output is correct
31	Correct	5 ms	4692 KB	Output is correct
32	Correct	4 ms	4788 KB	Output is correct
33	Correct	4 ms	4692 KB	Output is correct
34	Correct	6 ms	4692 KB	Output is correct
35	Correct	5 ms	4692 KB	Output is correct
36	Correct	5 ms	4692 KB	Output is correct
37	Correct	5 ms	4688 KB	Output is correct
38	Correct	5 ms	4692 KB	Output is correct
39	Correct	5 ms	4692 KB	Output is correct
40	Correct	5 ms	4788 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	312 KB	Output is correct
15	Correct	1 ms	304 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	312 KB	Output is correct
18	Correct	0 ms	304 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	2 ms	1108 KB	Output is correct
22	Correct	1 ms	1108 KB	Output is correct
23	Correct	1 ms	1108 KB	Output is correct
24	Correct	1 ms	1108 KB	Output is correct
25	Correct	1 ms	1076 KB	Output is correct
26	Correct	1 ms	1108 KB	Output is correct
27	Correct	1 ms	1108 KB	Output is correct
28	Correct	1 ms	1108 KB	Output is correct
29	Correct	2 ms	1068 KB	Output is correct
30	Correct	1 ms	1108 KB	Output is correct
31	Correct	5 ms	4692 KB	Output is correct
32	Correct	4 ms	4788 KB	Output is correct
33	Correct	4 ms	4692 KB	Output is correct
34	Correct	6 ms	4692 KB	Output is correct
35	Correct	5 ms	4692 KB	Output is correct
36	Correct	5 ms	4692 KB	Output is correct
37	Correct	5 ms	4688 KB	Output is correct
38	Correct	5 ms	4692 KB	Output is correct
39	Correct	5 ms	4692 KB	Output is correct
40	Correct	5 ms	4788 KB	Output is correct
41	Correct	313 ms	67216 KB	Output is correct
42	Correct	345 ms	67276 KB	Output is correct
43	Correct	304 ms	67284 KB	Output is correct
44	Correct	323 ms	67308 KB	Output is correct
45	Correct	302 ms	67308 KB	Output is correct
46	Correct	319 ms	67540 KB	Output is correct
47	Correct	313 ms	67312 KB	Output is correct
48	Correct	316 ms	67216 KB	Output is correct
49	Correct	310 ms	67236 KB	Output is correct
50	Correct	310 ms	67404 KB	Output is correct
51	Correct	356 ms	67328 KB	Output is correct
52	Correct	324 ms	67324 KB	Output is correct
53	Correct	342 ms	67236 KB	Output is correct
54	Correct	311 ms	67432 KB	Output is correct
55	Correct	339 ms	67428 KB	Output is correct

답안 #574323

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