#include <bits/stdc++.h>
#define ll long long
#define s second
#define f first
#define pb push_back
#define pii pair <int,int>
#define left (h<<1),l,(l + r)/2
#define right ((h<<1)|1),(l + r)/2 + 1,r
#define int ll
using namespace std;
const int N = 5e3 + 3,inf = 1e18;
int a[N],dp[N],id[N],b[N],val[N],pr[N];
signed main() {
ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
int n;
cin>>n;
for (int i = 1; i <= n; i++)
cin >> a[i],dp[i] = inf,id[a[i]] = i;
//neli
for (int i = 1; i <= n; i++){
int c=0;
for (int j = 1; j <= n; j++){
if (a[j] > i) ++c;
val[j] = c;
}
for (int j = 1; j <= n; j++){
pr[j] = pr[j - 1] + val[id[j]];
}
for (int k = 1; k <= i; k++){
int cost = pr[i] - pr[i - k]; //marcxniv ramdenia i-ze meti
//anti inverse ebis raodenoba [i - k + 1, i] shualedshi
for (int j = 1; j <= n; j++)
b[j] = 0;
for (int j = i; j >= i - k + 1; j--){
b[id[j]] = 1;
for (int w = id[j] + 1; w <= n; w++)
cost += b[w];
}
dp[i] = min(dp[i],dp[i - k] + cost);
}
}
cout<<dp[n];
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
504 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
504 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 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 |
344 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
504 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 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 |
344 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
75 ms |
592 KB |
Output is correct |
| 22 |
Correct |
73 ms |
464 KB |
Output is correct |
| 23 |
Correct |
70 ms |
464 KB |
Output is correct |
| 24 |
Correct |
70 ms |
472 KB |
Output is correct |
| 25 |
Correct |
69 ms |
344 KB |
Output is correct |
| 26 |
Correct |
71 ms |
344 KB |
Output is correct |
| 27 |
Correct |
70 ms |
464 KB |
Output is correct |
| 28 |
Correct |
68 ms |
460 KB |
Output is correct |
| 29 |
Correct |
71 ms |
460 KB |
Output is correct |
| 30 |
Correct |
72 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
504 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 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 |
344 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
75 ms |
592 KB |
Output is correct |
| 22 |
Correct |
73 ms |
464 KB |
Output is correct |
| 23 |
Correct |
70 ms |
464 KB |
Output is correct |
| 24 |
Correct |
70 ms |
472 KB |
Output is correct |
| 25 |
Correct |
69 ms |
344 KB |
Output is correct |
| 26 |
Correct |
71 ms |
344 KB |
Output is correct |
| 27 |
Correct |
70 ms |
464 KB |
Output is correct |
| 28 |
Correct |
68 ms |
460 KB |
Output is correct |
| 29 |
Correct |
71 ms |
460 KB |
Output is correct |
| 30 |
Correct |
72 ms |
348 KB |
Output is correct |
| 31 |
Execution timed out |
5058 ms |
348 KB |
Time limit exceeded |
| 32 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
504 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 |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
600 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 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 |
344 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
75 ms |
592 KB |
Output is correct |
| 22 |
Correct |
73 ms |
464 KB |
Output is correct |
| 23 |
Correct |
70 ms |
464 KB |
Output is correct |
| 24 |
Correct |
70 ms |
472 KB |
Output is correct |
| 25 |
Correct |
69 ms |
344 KB |
Output is correct |
| 26 |
Correct |
71 ms |
344 KB |
Output is correct |
| 27 |
Correct |
70 ms |
464 KB |
Output is correct |
| 28 |
Correct |
68 ms |
460 KB |
Output is correct |
| 29 |
Correct |
71 ms |
460 KB |
Output is correct |
| 30 |
Correct |
72 ms |
348 KB |
Output is correct |
| 31 |
Execution timed out |
5058 ms |
348 KB |
Time limit exceeded |
| 32 |
Halted |
0 ms |
0 KB |
- |
