#include <bits/stdc++.h>
//#define int long long
#define fastio cin.tie(0), cout.tie(0), ios::sync_with_stdio(0);
using namespace std;
// how to include ordered_set?
int main(){
int n, tmp, mindp;
cin >> n;
vector<int> p(n+1), dp(n+1, 0);
for(int i=1; i<=n; i++){
cin >> tmp;
p[tmp] = i;
}
for(int i=1; i<=n; i++){
tmp = 0;
for(int j=1; j<i; j++) tmp += (p[j]>p[i]);
dp[i-1] +=tmp;
mindp = dp[i-1];
for(int j=i-2; j>-1; j--){
(p[i]>p[j+1])?(tmp++):(tmp--);
dp[j] += tmp;
mindp = min(mindp, dp[j]);
}
dp[i] = mindp;
}
cout << dp[n] << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
292 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
292 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
296 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
296 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
292 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
296 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
296 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
304 KB |
Output is correct |
26 |
Correct |
1 ms |
296 KB |
Output is correct |
27 |
Correct |
1 ms |
300 KB |
Output is correct |
28 |
Correct |
1 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
300 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
292 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
296 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
296 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
304 KB |
Output is correct |
26 |
Correct |
1 ms |
296 KB |
Output is correct |
27 |
Correct |
1 ms |
300 KB |
Output is correct |
28 |
Correct |
1 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
300 KB |
Output is correct |
31 |
Correct |
2 ms |
212 KB |
Output is correct |
32 |
Correct |
2 ms |
300 KB |
Output is correct |
33 |
Correct |
2 ms |
212 KB |
Output is correct |
34 |
Correct |
2 ms |
212 KB |
Output is correct |
35 |
Correct |
2 ms |
212 KB |
Output is correct |
36 |
Correct |
2 ms |
212 KB |
Output is correct |
37 |
Correct |
2 ms |
212 KB |
Output is correct |
38 |
Correct |
2 ms |
212 KB |
Output is correct |
39 |
Correct |
3 ms |
212 KB |
Output is correct |
40 |
Correct |
2 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
292 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
296 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
296 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
300 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
304 KB |
Output is correct |
26 |
Correct |
1 ms |
296 KB |
Output is correct |
27 |
Correct |
1 ms |
300 KB |
Output is correct |
28 |
Correct |
1 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
300 KB |
Output is correct |
31 |
Correct |
2 ms |
212 KB |
Output is correct |
32 |
Correct |
2 ms |
300 KB |
Output is correct |
33 |
Correct |
2 ms |
212 KB |
Output is correct |
34 |
Correct |
2 ms |
212 KB |
Output is correct |
35 |
Correct |
2 ms |
212 KB |
Output is correct |
36 |
Correct |
2 ms |
212 KB |
Output is correct |
37 |
Correct |
2 ms |
212 KB |
Output is correct |
38 |
Correct |
2 ms |
212 KB |
Output is correct |
39 |
Correct |
3 ms |
212 KB |
Output is correct |
40 |
Correct |
2 ms |
212 KB |
Output is correct |
41 |
Correct |
52 ms |
348 KB |
Output is correct |
42 |
Correct |
54 ms |
460 KB |
Output is correct |
43 |
Correct |
55 ms |
340 KB |
Output is correct |
44 |
Correct |
54 ms |
340 KB |
Output is correct |
45 |
Correct |
52 ms |
340 KB |
Output is correct |
46 |
Correct |
53 ms |
340 KB |
Output is correct |
47 |
Correct |
53 ms |
340 KB |
Output is correct |
48 |
Correct |
52 ms |
340 KB |
Output is correct |
49 |
Correct |
52 ms |
340 KB |
Output is correct |
50 |
Correct |
52 ms |
340 KB |
Output is correct |
51 |
Correct |
53 ms |
348 KB |
Output is correct |
52 |
Correct |
52 ms |
312 KB |
Output is correct |
53 |
Correct |
52 ms |
340 KB |
Output is correct |
54 |
Correct |
52 ms |
340 KB |
Output is correct |
55 |
Correct |
53 ms |
340 KB |
Output is correct |