#include <bits/stdc++.h>
using namespace std;
const int nx=3e5+5;
int n, m, h[nx], v[nx], c, dp[nx], ans;
struct fenwick
{
int d[nx];
void add(int idx, int val)
{
while (idx<nx) d[idx]=min(d[idx], val), idx+=(idx&-idx);
}
int find(int idx)
{
int tmp=INT_MAX;
while (idx>0) tmp=min(tmp, d[idx]), idx-=(idx&-idx);
return tmp;
}
} f;
int main()
{
cin.tie(NULL)->sync_with_stdio(false);
cin>>n>>m;
ans=n;
for (int i=1; i<=n; i++) cin>>h[i], h[i]-=i*m, h[i]=-h[i], v[i]=h[i];
for (int i=0; i<nx; i++) f.d[i]=1e9;
sort(v, v+n+1);
int id=lower_bound(v, v+n+1, 0)-v+1;
f.add(id, -1);
for (int i=1; i<=n; i++)
{
auto idx=lower_bound(v, v+n+1, h[i])-v+1;
dp[i]=f.find(idx)+i;
//cout<<i<<' '<<idx<<' '<<f.find(idx)<<' '<<dp[i]<<' '<<h[i]<<'\n';
f.add(idx, dp[i]-i-1);
ans=min(ans, dp[i]+n-i);
}
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1492 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
1 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1492 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
1 ms |
1492 KB |
Output is correct |
12 |
Correct |
1 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1492 KB |
Output is correct |
14 |
Correct |
1 ms |
1492 KB |
Output is correct |
15 |
Correct |
1 ms |
1492 KB |
Output is correct |
16 |
Correct |
1 ms |
1492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1492 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
1 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1492 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
1 ms |
1492 KB |
Output is correct |
12 |
Correct |
1 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1492 KB |
Output is correct |
14 |
Correct |
1 ms |
1492 KB |
Output is correct |
15 |
Correct |
1 ms |
1492 KB |
Output is correct |
16 |
Correct |
1 ms |
1492 KB |
Output is correct |
17 |
Correct |
1 ms |
1492 KB |
Output is correct |
18 |
Correct |
1 ms |
1492 KB |
Output is correct |
19 |
Correct |
1 ms |
1492 KB |
Output is correct |
20 |
Correct |
1 ms |
1492 KB |
Output is correct |
21 |
Correct |
2 ms |
1492 KB |
Output is correct |
22 |
Correct |
2 ms |
1492 KB |
Output is correct |
23 |
Correct |
2 ms |
1492 KB |
Output is correct |
24 |
Correct |
1 ms |
1492 KB |
Output is correct |
25 |
Correct |
2 ms |
1492 KB |
Output is correct |
26 |
Correct |
2 ms |
1492 KB |
Output is correct |
27 |
Correct |
1 ms |
1492 KB |
Output is correct |
28 |
Correct |
2 ms |
1492 KB |
Output is correct |
29 |
Correct |
1 ms |
1492 KB |
Output is correct |
30 |
Correct |
2 ms |
1492 KB |
Output is correct |
31 |
Correct |
1 ms |
1492 KB |
Output is correct |
32 |
Correct |
2 ms |
1492 KB |
Output is correct |
33 |
Correct |
2 ms |
1492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1492 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
2 ms |
1492 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
2 ms |
1492 KB |
Output is correct |
10 |
Correct |
2 ms |
1492 KB |
Output is correct |
11 |
Correct |
1 ms |
1492 KB |
Output is correct |
12 |
Correct |
2 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1492 KB |
Output is correct |
14 |
Correct |
2 ms |
1492 KB |
Output is correct |
15 |
Correct |
1 ms |
1492 KB |
Output is correct |
16 |
Correct |
2 ms |
1492 KB |
Output is correct |
17 |
Correct |
2 ms |
1492 KB |
Output is correct |
18 |
Correct |
1 ms |
1492 KB |
Output is correct |
19 |
Correct |
1 ms |
1492 KB |
Output is correct |
20 |
Correct |
1 ms |
1492 KB |
Output is correct |
21 |
Correct |
1 ms |
1492 KB |
Output is correct |
22 |
Correct |
1 ms |
1492 KB |
Output is correct |
23 |
Correct |
1 ms |
1492 KB |
Output is correct |
24 |
Correct |
1 ms |
1492 KB |
Output is correct |
25 |
Correct |
1 ms |
1492 KB |
Output is correct |
26 |
Correct |
1 ms |
1492 KB |
Output is correct |
27 |
Correct |
1 ms |
1492 KB |
Output is correct |
28 |
Correct |
1 ms |
1492 KB |
Output is correct |
29 |
Correct |
1 ms |
1492 KB |
Output is correct |
30 |
Correct |
1 ms |
1492 KB |
Output is correct |
31 |
Correct |
1 ms |
1492 KB |
Output is correct |
32 |
Correct |
1 ms |
1492 KB |
Output is correct |
33 |
Correct |
1 ms |
1492 KB |
Output is correct |
34 |
Correct |
2 ms |
1492 KB |
Output is correct |
35 |
Correct |
2 ms |
1492 KB |
Output is correct |
36 |
Correct |
2 ms |
1492 KB |
Output is correct |
37 |
Correct |
1 ms |
1492 KB |
Output is correct |
38 |
Correct |
1 ms |
1492 KB |
Output is correct |
39 |
Correct |
1 ms |
1492 KB |
Output is correct |
40 |
Correct |
1 ms |
1492 KB |
Output is correct |
41 |
Correct |
1 ms |
1492 KB |
Output is correct |
42 |
Correct |
2 ms |
1492 KB |
Output is correct |
43 |
Correct |
2 ms |
1492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1492 KB |
Output is correct |
2 |
Correct |
2 ms |
1492 KB |
Output is correct |
3 |
Correct |
2 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1492 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
1 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1492 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
2 ms |
1492 KB |
Output is correct |
10 |
Correct |
2 ms |
1492 KB |
Output is correct |
11 |
Correct |
1 ms |
1492 KB |
Output is correct |
12 |
Correct |
1 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1492 KB |
Output is correct |
14 |
Correct |
1 ms |
1492 KB |
Output is correct |
15 |
Correct |
2 ms |
1492 KB |
Output is correct |
16 |
Correct |
2 ms |
1492 KB |
Output is correct |
17 |
Correct |
2 ms |
1492 KB |
Output is correct |
18 |
Correct |
1 ms |
1492 KB |
Output is correct |
19 |
Correct |
2 ms |
1492 KB |
Output is correct |
20 |
Correct |
2 ms |
1492 KB |
Output is correct |
21 |
Correct |
1 ms |
1492 KB |
Output is correct |
22 |
Correct |
2 ms |
1492 KB |
Output is correct |
23 |
Correct |
1 ms |
1492 KB |
Output is correct |
24 |
Correct |
2 ms |
1492 KB |
Output is correct |
25 |
Correct |
1 ms |
1492 KB |
Output is correct |
26 |
Correct |
2 ms |
1492 KB |
Output is correct |
27 |
Correct |
2 ms |
1492 KB |
Output is correct |
28 |
Correct |
1 ms |
1492 KB |
Output is correct |
29 |
Correct |
1 ms |
1492 KB |
Output is correct |
30 |
Correct |
1 ms |
1492 KB |
Output is correct |
31 |
Correct |
1 ms |
1492 KB |
Output is correct |
32 |
Correct |
1 ms |
1492 KB |
Output is correct |
33 |
Correct |
1 ms |
1492 KB |
Output is correct |
34 |
Correct |
1 ms |
1492 KB |
Output is correct |
35 |
Correct |
1 ms |
1492 KB |
Output is correct |
36 |
Correct |
1 ms |
1492 KB |
Output is correct |
37 |
Correct |
1 ms |
1492 KB |
Output is correct |
38 |
Correct |
1 ms |
1492 KB |
Output is correct |
39 |
Correct |
1 ms |
1492 KB |
Output is correct |
40 |
Correct |
1 ms |
1492 KB |
Output is correct |
41 |
Correct |
1 ms |
1492 KB |
Output is correct |
42 |
Correct |
1 ms |
1492 KB |
Output is correct |
43 |
Correct |
1 ms |
1492 KB |
Output is correct |
44 |
Correct |
28 ms |
3816 KB |
Output is correct |
45 |
Correct |
61 ms |
5712 KB |
Output is correct |
46 |
Correct |
57 ms |
5760 KB |
Output is correct |
47 |
Correct |
67 ms |
5708 KB |
Output is correct |
48 |
Correct |
31 ms |
4684 KB |
Output is correct |
49 |
Correct |
31 ms |
4940 KB |
Output is correct |
50 |
Correct |
29 ms |
5680 KB |
Output is correct |
51 |
Correct |
28 ms |
5680 KB |
Output is correct |
52 |
Correct |
27 ms |
4708 KB |
Output is correct |
53 |
Correct |
25 ms |
5044 KB |
Output is correct |
54 |
Correct |
33 ms |
4836 KB |
Output is correct |
55 |
Correct |
33 ms |
4860 KB |
Output is correct |