#include<bits/stdc++.h>
using namespace std;
#define optimizar_io ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);cout.setf(ios::fixed);cout.precision(9);
#pragma GCC optimize("Ofast")
typedef long long ll;
struct Fenwick_tree {
ll n;
vector<ll> T;
void update(ll a, ll b) {
for(; a<n; a+=(a&(-a)))
T[a]+=b;
}
ll query(ll a) {
ll ans=0;
for(; a>0; a-=(a&(-a)))
ans+=T[a];
return ans;
}
ll query(ll a, ll b) { return query(b) - query(a-1); }
Fenwick_tree(ll N){
n = N * 2;
T.assign(n, 0);
}
};
int main()
{
optimizar_io
ll n;
cin>>n;
ll cad[n+1];
for(int i=1; i<=n; i++)
cin>>cad[i];
ll dp1[n+1][n+1];
ll dp[n+1];
for(int i=1; i<=n; i++)
{
Fenwick_tree asd(n+5);
dp[i]=1e9;
ll cont=0;
for(int j=0; j<=n; j++)
{
dp1[i][j]=0;
}
for(int j=1; j<=n; j++)
{
if(cad[j]<i) continue;
//if(cad[j]==4){ cout<<asd.query(i,cad[j])<<" "<<asd.query(cad[j],n)<<" "<<(cad[j]-i)-asd.query(i,cad[j])<<"\n";}
dp1[i][cad[j]]+=asd.query(i,cad[j]);
dp1[i][cad[j]]+=asd.query(cad[j],n);
dp1[i][cad[j]]-=(cad[j]-i)-asd.query(i,cad[j]);
asd.update(cad[j],1);
}
for(int j=1; j<=n; j++)
dp1[i][j]+=dp1[i][j-1];
}
dp[0]=0;
for(int i=1; i<=n; i++)
{
for(int j=1; j<=i; j++)
{
dp[i]=min(dp[i],dp[j-1]+dp1[j][i]);
}
}
cout<<dp[n];
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:40:12: warning: unused variable 'cont' [-Wunused-variable]
40 | ll cont=0;
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
456 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 |
456 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
456 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
456 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 |
456 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
456 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
604 KB |
Output is correct |
22 |
Correct |
1 ms |
604 KB |
Output is correct |
23 |
Correct |
2 ms |
920 KB |
Output is correct |
24 |
Correct |
1 ms |
604 KB |
Output is correct |
25 |
Correct |
1 ms |
856 KB |
Output is correct |
26 |
Correct |
1 ms |
604 KB |
Output is correct |
27 |
Correct |
2 ms |
604 KB |
Output is correct |
28 |
Correct |
1 ms |
604 KB |
Output is correct |
29 |
Correct |
1 ms |
604 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
456 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 |
456 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
456 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
604 KB |
Output is correct |
22 |
Correct |
1 ms |
604 KB |
Output is correct |
23 |
Correct |
2 ms |
920 KB |
Output is correct |
24 |
Correct |
1 ms |
604 KB |
Output is correct |
25 |
Correct |
1 ms |
856 KB |
Output is correct |
26 |
Correct |
1 ms |
604 KB |
Output is correct |
27 |
Correct |
2 ms |
604 KB |
Output is correct |
28 |
Correct |
1 ms |
604 KB |
Output is correct |
29 |
Correct |
1 ms |
604 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
31 |
Correct |
17 ms |
5468 KB |
Output is correct |
32 |
Correct |
17 ms |
5468 KB |
Output is correct |
33 |
Correct |
17 ms |
5316 KB |
Output is correct |
34 |
Correct |
15 ms |
5464 KB |
Output is correct |
35 |
Correct |
18 ms |
5468 KB |
Output is correct |
36 |
Correct |
16 ms |
5464 KB |
Output is correct |
37 |
Correct |
16 ms |
5468 KB |
Output is correct |
38 |
Correct |
16 ms |
5464 KB |
Output is correct |
39 |
Correct |
17 ms |
5468 KB |
Output is correct |
40 |
Correct |
15 ms |
5280 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
456 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 |
456 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
456 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
604 KB |
Output is correct |
22 |
Correct |
1 ms |
604 KB |
Output is correct |
23 |
Correct |
2 ms |
920 KB |
Output is correct |
24 |
Correct |
1 ms |
604 KB |
Output is correct |
25 |
Correct |
1 ms |
856 KB |
Output is correct |
26 |
Correct |
1 ms |
604 KB |
Output is correct |
27 |
Correct |
2 ms |
604 KB |
Output is correct |
28 |
Correct |
1 ms |
604 KB |
Output is correct |
29 |
Correct |
1 ms |
604 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
31 |
Correct |
17 ms |
5468 KB |
Output is correct |
32 |
Correct |
17 ms |
5468 KB |
Output is correct |
33 |
Correct |
17 ms |
5316 KB |
Output is correct |
34 |
Correct |
15 ms |
5464 KB |
Output is correct |
35 |
Correct |
18 ms |
5468 KB |
Output is correct |
36 |
Correct |
16 ms |
5464 KB |
Output is correct |
37 |
Correct |
16 ms |
5468 KB |
Output is correct |
38 |
Correct |
16 ms |
5464 KB |
Output is correct |
39 |
Correct |
17 ms |
5468 KB |
Output is correct |
40 |
Correct |
15 ms |
5280 KB |
Output is correct |
41 |
Correct |
905 ms |
196148 KB |
Output is correct |
42 |
Correct |
876 ms |
196432 KB |
Output is correct |
43 |
Correct |
874 ms |
196344 KB |
Output is correct |
44 |
Correct |
876 ms |
196308 KB |
Output is correct |
45 |
Correct |
879 ms |
196304 KB |
Output is correct |
46 |
Correct |
873 ms |
196528 KB |
Output is correct |
47 |
Correct |
854 ms |
196152 KB |
Output is correct |
48 |
Correct |
857 ms |
196176 KB |
Output is correct |
49 |
Correct |
865 ms |
196384 KB |
Output is correct |
50 |
Correct |
851 ms |
196268 KB |
Output is correct |
51 |
Correct |
862 ms |
196384 KB |
Output is correct |
52 |
Correct |
862 ms |
196396 KB |
Output is correct |
53 |
Correct |
852 ms |
196432 KB |
Output is correct |
54 |
Correct |
860 ms |
196384 KB |
Output is correct |
55 |
Correct |
863 ms |
196380 KB |
Output is correct |