#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll a,b,c,d,i,e,f,g,n,m,k,l;
ll A[5003],B[5003],C[5003][5003],D[5003][5003],dp[5003];
int main() {
cin>>n;
for(ll i=1;i<=n;i++) {
cin>>A[i];
B[A[i]]=i;
dp[i]=1e18;
}
for(ll i=1;i<=n;i++) {
for(ll j=n;j>=1;j--) {
C[i][j]=C[i][j+1];
if(B[j]<B[i]) C[i][j]++;
}
}
for(ll i=1;i<=n;i++) {
for(ll j=i;j<=n;j++) {
D[i][j]=C[j][i]+D[i][j-1]-((j-1)-i+1-(C[j][i]-C[j][j+1]));
}
}
for(ll i=1;i<=n;i++) {
for(ll j=i-1;j>=0;j--) {
dp[i]=min(dp[i],dp[j]+D[j+1][i]);
}
}
cout<<dp[n];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
304 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 |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
304 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 |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 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 |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
304 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 |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 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 |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
2 ms |
2356 KB |
Output is correct |
22 |
Correct |
2 ms |
2380 KB |
Output is correct |
23 |
Correct |
2 ms |
2380 KB |
Output is correct |
24 |
Correct |
2 ms |
2348 KB |
Output is correct |
25 |
Correct |
2 ms |
2380 KB |
Output is correct |
26 |
Correct |
2 ms |
2380 KB |
Output is correct |
27 |
Correct |
2 ms |
2380 KB |
Output is correct |
28 |
Correct |
2 ms |
2380 KB |
Output is correct |
29 |
Correct |
2 ms |
2380 KB |
Output is correct |
30 |
Correct |
3 ms |
2380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
304 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 |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 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 |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
2 ms |
2356 KB |
Output is correct |
22 |
Correct |
2 ms |
2380 KB |
Output is correct |
23 |
Correct |
2 ms |
2380 KB |
Output is correct |
24 |
Correct |
2 ms |
2348 KB |
Output is correct |
25 |
Correct |
2 ms |
2380 KB |
Output is correct |
26 |
Correct |
2 ms |
2380 KB |
Output is correct |
27 |
Correct |
2 ms |
2380 KB |
Output is correct |
28 |
Correct |
2 ms |
2380 KB |
Output is correct |
29 |
Correct |
2 ms |
2380 KB |
Output is correct |
30 |
Correct |
3 ms |
2380 KB |
Output is correct |
31 |
Correct |
17 ms |
14220 KB |
Output is correct |
32 |
Correct |
14 ms |
14252 KB |
Output is correct |
33 |
Correct |
14 ms |
14312 KB |
Output is correct |
34 |
Correct |
14 ms |
14284 KB |
Output is correct |
35 |
Correct |
14 ms |
14284 KB |
Output is correct |
36 |
Correct |
15 ms |
14372 KB |
Output is correct |
37 |
Correct |
14 ms |
14288 KB |
Output is correct |
38 |
Correct |
14 ms |
14284 KB |
Output is correct |
39 |
Correct |
15 ms |
14284 KB |
Output is correct |
40 |
Correct |
15 ms |
14256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
304 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 |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
460 KB |
Output is correct |
12 |
Correct |
1 ms |
460 KB |
Output is correct |
13 |
Correct |
1 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 |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
1 ms |
460 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
2 ms |
2356 KB |
Output is correct |
22 |
Correct |
2 ms |
2380 KB |
Output is correct |
23 |
Correct |
2 ms |
2380 KB |
Output is correct |
24 |
Correct |
2 ms |
2348 KB |
Output is correct |
25 |
Correct |
2 ms |
2380 KB |
Output is correct |
26 |
Correct |
2 ms |
2380 KB |
Output is correct |
27 |
Correct |
2 ms |
2380 KB |
Output is correct |
28 |
Correct |
2 ms |
2380 KB |
Output is correct |
29 |
Correct |
2 ms |
2380 KB |
Output is correct |
30 |
Correct |
3 ms |
2380 KB |
Output is correct |
31 |
Correct |
17 ms |
14220 KB |
Output is correct |
32 |
Correct |
14 ms |
14252 KB |
Output is correct |
33 |
Correct |
14 ms |
14312 KB |
Output is correct |
34 |
Correct |
14 ms |
14284 KB |
Output is correct |
35 |
Correct |
14 ms |
14284 KB |
Output is correct |
36 |
Correct |
15 ms |
14372 KB |
Output is correct |
37 |
Correct |
14 ms |
14288 KB |
Output is correct |
38 |
Correct |
14 ms |
14284 KB |
Output is correct |
39 |
Correct |
15 ms |
14284 KB |
Output is correct |
40 |
Correct |
15 ms |
14256 KB |
Output is correct |
41 |
Correct |
740 ms |
312900 KB |
Output is correct |
42 |
Correct |
728 ms |
313048 KB |
Output is correct |
43 |
Correct |
740 ms |
313184 KB |
Output is correct |
44 |
Correct |
734 ms |
313132 KB |
Output is correct |
45 |
Correct |
729 ms |
313308 KB |
Output is correct |
46 |
Correct |
717 ms |
313180 KB |
Output is correct |
47 |
Correct |
720 ms |
313196 KB |
Output is correct |
48 |
Correct |
737 ms |
313284 KB |
Output is correct |
49 |
Correct |
717 ms |
313184 KB |
Output is correct |
50 |
Correct |
717 ms |
313192 KB |
Output is correct |
51 |
Correct |
729 ms |
313200 KB |
Output is correct |
52 |
Correct |
739 ms |
313220 KB |
Output is correct |
53 |
Correct |
723 ms |
313152 KB |
Output is correct |
54 |
Correct |
723 ms |
313412 KB |
Output is correct |
55 |
Correct |
734 ms |
313156 KB |
Output is correct |