#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define pb(e) push_back(e)
#define sv(a) sort(a.begin(),a.end())
#define sa(a,n) sort(a,a+n)
#define mp(a,b) make_pair(a,b)
#define vf first
#define vs second
#define ar array
#define all(x) x.begin(),x.end()
const int inf = 0x3f3f3f3f;
const int mod = 1000000007;
const double PI=3.14159265358979323846264338327950288419716939937510582097494459230;
bool remender(ll a , ll b){return a%b;}
struct Fen {
vector<ll> tree;
void init(int n){
tree.assign(n + 1 , 0LL);
}
void set(int i , ll val , int n){
i++;
while(i <= n){
tree[i] += val;
i += (i & (-i));
}
}
ll sum(int i){
i++;
ll ans = 0;
while(i > 0){
ans += tree[i];
i -= (i & (-i));
}
return ans;
}
void build(vector<int>& a){
int n = a.size();
for(int i = 0; i < n; i++){
set(i , a[i] , n);
}
}
};
void solve(){
int n;
cin >> n;
int arr[n + 1];
for (int i = 1; i <= n; i++) {
cin >> arr[i];
}
int dp[n + 1];
dp[0] = 0;
int pos[n + 1];
for (int i = 1; i <= n; i++) {
for (int j = 1, cur = 1; j <= n; j++) {
if (arr[j] <= i)
pos[arr[j]] = cur++;
}
Fen ft;
ft.init(n + 5);
int cost = 0;
dp[i] = 1e9;
for (int j = i; j >= 1; j--) {
int loc = pos[j] - ft.sum(pos[j]);
cost += i - loc - 2 * ft.sum(pos[j] - 1);
ft.set(pos[j], 1 , n + 2);
dp[i] = min(dp[i], dp[j - 1] + cost);
}
}
cout << dp[n];
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
//int t;cin >> t;while(t--)
solve();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
312 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
312 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
1 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
312 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
1 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
204 KB |
Output is correct |
| 31 |
Correct |
10 ms |
204 KB |
Output is correct |
| 32 |
Correct |
10 ms |
332 KB |
Output is correct |
| 33 |
Correct |
10 ms |
204 KB |
Output is correct |
| 34 |
Correct |
10 ms |
204 KB |
Output is correct |
| 35 |
Correct |
10 ms |
308 KB |
Output is correct |
| 36 |
Correct |
11 ms |
332 KB |
Output is correct |
| 37 |
Correct |
10 ms |
332 KB |
Output is correct |
| 38 |
Correct |
10 ms |
312 KB |
Output is correct |
| 39 |
Correct |
12 ms |
328 KB |
Output is correct |
| 40 |
Correct |
10 ms |
332 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
312 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
0 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
1 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
1 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
1 ms |
204 KB |
Output is correct |
| 31 |
Correct |
10 ms |
204 KB |
Output is correct |
| 32 |
Correct |
10 ms |
332 KB |
Output is correct |
| 33 |
Correct |
10 ms |
204 KB |
Output is correct |
| 34 |
Correct |
10 ms |
204 KB |
Output is correct |
| 35 |
Correct |
10 ms |
308 KB |
Output is correct |
| 36 |
Correct |
11 ms |
332 KB |
Output is correct |
| 37 |
Correct |
10 ms |
332 KB |
Output is correct |
| 38 |
Correct |
10 ms |
312 KB |
Output is correct |
| 39 |
Correct |
12 ms |
328 KB |
Output is correct |
| 40 |
Correct |
10 ms |
332 KB |
Output is correct |
| 41 |
Correct |
455 ms |
408 KB |
Output is correct |
| 42 |
Correct |
456 ms |
452 KB |
Output is correct |
| 43 |
Correct |
445 ms |
408 KB |
Output is correct |
| 44 |
Correct |
468 ms |
452 KB |
Output is correct |
| 45 |
Correct |
454 ms |
408 KB |
Output is correct |
| 46 |
Correct |
455 ms |
332 KB |
Output is correct |
| 47 |
Correct |
451 ms |
424 KB |
Output is correct |
| 48 |
Correct |
448 ms |
412 KB |
Output is correct |
| 49 |
Correct |
454 ms |
412 KB |
Output is correct |
| 50 |
Correct |
450 ms |
412 KB |
Output is correct |
| 51 |
Correct |
452 ms |
452 KB |
Output is correct |
| 52 |
Correct |
448 ms |
332 KB |
Output is correct |
| 53 |
Correct |
455 ms |
424 KB |
Output is correct |
| 54 |
Correct |
452 ms |
408 KB |
Output is correct |
| 55 |
Correct |
448 ms |
452 KB |
Output is correct |
