#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define pii pair<int,int>
using namespace __gnu_pbds;
using namespace std;
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define f first
#define int long long
#define s second
#define pii pair<int,int>
template<class T>bool umax(T &a,T b){if(a<b){a=b;return true;}return false;}
template<class T>bool umin(T &a,T b){if(b<a){a=b;return true;}return false;}
typedef tree<int, null_type, less_equal<int>, rb_tree_tag,
tree_order_statistics_node_update> ordered_set;
const int N = 1e6 + 5 ;
const int inf = 1e17 + 7;
const int mod = 1e9 + 7;
int n,m,k;
void solve(){
cin >> n >> m;
vector<int>a(n + 1);
for(int i = 0;i<n;i++){
cin >> a[i];
}
vector<int>dp(n + 1),v(n + 1,-inf);
for(int i = n - 1;i>=0;i--){
int it = upper_bound(all(v),a[i]) - v.begin() - 1;
v[it] = a[i];
if(i > 0){
dp[i - 1] = v.end() - upper_bound(all(v), a[i - 1] - m);
}
}
int ans = v.end() - upper_bound(all(v), -inf + 1);
for(int i = 0;i<n;i++){
v[i] = inf;
}
for(int i = 0;i<n - 1;i++){
int it = lower_bound(all(v), a[i]) - v.begin();
v[it] = a[i];
umax(ans, dp[i] + it + 1);
}
cout<< ans <<"\n";
}
signed main()
{
// freopen("seq.in", "r", stdin);
// freopen("seq.out", "w", stdout);
ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
int tt=1;//cin>>tt;
while(tt--)solve();
}
//spizdil u Alihan_8
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
352 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
352 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
352 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 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 |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
352 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
50 ms |
4956 KB |
Output is correct |
2 |
Correct |
50 ms |
4952 KB |
Output is correct |
3 |
Correct |
49 ms |
4956 KB |
Output is correct |
4 |
Correct |
48 ms |
5104 KB |
Output is correct |
5 |
Correct |
34 ms |
4952 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
1628 KB |
Output is correct |
2 |
Correct |
11 ms |
1628 KB |
Output is correct |
3 |
Correct |
12 ms |
1628 KB |
Output is correct |
4 |
Correct |
9 ms |
1624 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
9 ms |
1628 KB |
Output is correct |
7 |
Correct |
9 ms |
1880 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
21 ms |
2652 KB |
Output is correct |
2 |
Correct |
21 ms |
2820 KB |
Output is correct |
3 |
Correct |
42 ms |
4952 KB |
Output is correct |
4 |
Correct |
35 ms |
4956 KB |
Output is correct |
5 |
Correct |
18 ms |
2824 KB |
Output is correct |
6 |
Correct |
28 ms |
4700 KB |
Output is correct |
7 |
Correct |
31 ms |
4696 KB |
Output is correct |
8 |
Correct |
17 ms |
2652 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
352 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 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 |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
352 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
50 ms |
4956 KB |
Output is correct |
28 |
Correct |
50 ms |
4952 KB |
Output is correct |
29 |
Correct |
49 ms |
4956 KB |
Output is correct |
30 |
Correct |
48 ms |
5104 KB |
Output is correct |
31 |
Correct |
34 ms |
4952 KB |
Output is correct |
32 |
Correct |
11 ms |
1628 KB |
Output is correct |
33 |
Correct |
11 ms |
1628 KB |
Output is correct |
34 |
Correct |
12 ms |
1628 KB |
Output is correct |
35 |
Correct |
9 ms |
1624 KB |
Output is correct |
36 |
Correct |
0 ms |
344 KB |
Output is correct |
37 |
Correct |
9 ms |
1628 KB |
Output is correct |
38 |
Correct |
9 ms |
1880 KB |
Output is correct |
39 |
Correct |
21 ms |
2652 KB |
Output is correct |
40 |
Correct |
21 ms |
2820 KB |
Output is correct |
41 |
Correct |
42 ms |
4952 KB |
Output is correct |
42 |
Correct |
35 ms |
4956 KB |
Output is correct |
43 |
Correct |
18 ms |
2824 KB |
Output is correct |
44 |
Correct |
28 ms |
4700 KB |
Output is correct |
45 |
Correct |
31 ms |
4696 KB |
Output is correct |
46 |
Correct |
17 ms |
2652 KB |
Output is correct |
47 |
Correct |
24 ms |
2652 KB |
Output is correct |
48 |
Correct |
23 ms |
2792 KB |
Output is correct |
49 |
Correct |
49 ms |
4956 KB |
Output is correct |
50 |
Correct |
35 ms |
5208 KB |
Output is correct |
51 |
Correct |
29 ms |
3932 KB |
Output is correct |
52 |
Correct |
36 ms |
4956 KB |
Output is correct |
53 |
Correct |
33 ms |
4956 KB |
Output is correct |
54 |
Correct |
33 ms |
4956 KB |
Output is correct |
55 |
Correct |
39 ms |
5112 KB |
Output is correct |