#include <bits/stdc++.h>
// author : a1abay
#define pb push_back
#define all(v) v.begin(), v.end()
#define int ll
#define gcd(a, b) __gcd(a, b)
#define lcm(a, b) (a*b / (__gcd(a, b)))
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
typedef long long ll;
const int inf = 1e9 + 7;
const int inff = 1e18 + 7;
const int sz = 2e5 + 5;
using namespace std;
int n, x;
int a[sz];
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n >> x;
for(int i = 0; i < n; i++)cin >> a[i];
vector<int> dp(n + 5, inff);
vector<int> l(n + 5, 0), r(n + 5, 0);
for(int i = 0; i < n; i++)
{
int ind = lower_bound(all(dp), a[i]) - dp.begin();
dp[ind] = a[i];
l[i] = ind + 1;
}
int mx = 0;
dp = vector<int>(n + 5, inff);
for(int i = n - 1; i >= 0; i--)
{
int pos = lower_bound(all(dp), -(a[i] - x)) - dp.begin();
int ind = lower_bound(all(dp), -a[i]) - dp.begin();
dp[ind] = -a[i];
mx = max(mx, l[i] + pos);
}
cout << mx;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
352 KB |
Output is correct |
2 |
Correct |
0 ms |
460 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 |
344 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 |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
352 KB |
Output is correct |
2 |
Correct |
0 ms |
460 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 |
344 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 |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 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 |
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 |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
352 KB |
Output is correct |
2 |
Correct |
0 ms |
460 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 |
344 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 |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 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 |
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 |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
472 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
49 ms |
10192 KB |
Output is correct |
2 |
Correct |
49 ms |
10068 KB |
Output is correct |
3 |
Correct |
49 ms |
10068 KB |
Output is correct |
4 |
Correct |
49 ms |
10072 KB |
Output is correct |
5 |
Correct |
36 ms |
9300 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
2908 KB |
Output is correct |
2 |
Correct |
11 ms |
2908 KB |
Output is correct |
3 |
Correct |
11 ms |
2908 KB |
Output is correct |
4 |
Correct |
9 ms |
2600 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
9 ms |
2652 KB |
Output is correct |
7 |
Correct |
10 ms |
2896 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
21 ms |
5212 KB |
Output is correct |
2 |
Correct |
21 ms |
5212 KB |
Output is correct |
3 |
Correct |
47 ms |
10372 KB |
Output is correct |
4 |
Correct |
36 ms |
9300 KB |
Output is correct |
5 |
Correct |
19 ms |
4956 KB |
Output is correct |
6 |
Correct |
29 ms |
9052 KB |
Output is correct |
7 |
Correct |
33 ms |
9552 KB |
Output is correct |
8 |
Correct |
18 ms |
5208 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
352 KB |
Output is correct |
2 |
Correct |
0 ms |
460 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 |
344 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 |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 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 |
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 |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
472 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
344 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
49 ms |
10192 KB |
Output is correct |
28 |
Correct |
49 ms |
10068 KB |
Output is correct |
29 |
Correct |
49 ms |
10068 KB |
Output is correct |
30 |
Correct |
49 ms |
10072 KB |
Output is correct |
31 |
Correct |
36 ms |
9300 KB |
Output is correct |
32 |
Correct |
12 ms |
2908 KB |
Output is correct |
33 |
Correct |
11 ms |
2908 KB |
Output is correct |
34 |
Correct |
11 ms |
2908 KB |
Output is correct |
35 |
Correct |
9 ms |
2600 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
9 ms |
2652 KB |
Output is correct |
38 |
Correct |
10 ms |
2896 KB |
Output is correct |
39 |
Correct |
21 ms |
5212 KB |
Output is correct |
40 |
Correct |
21 ms |
5212 KB |
Output is correct |
41 |
Correct |
47 ms |
10372 KB |
Output is correct |
42 |
Correct |
36 ms |
9300 KB |
Output is correct |
43 |
Correct |
19 ms |
4956 KB |
Output is correct |
44 |
Correct |
29 ms |
9052 KB |
Output is correct |
45 |
Correct |
33 ms |
9552 KB |
Output is correct |
46 |
Correct |
18 ms |
5208 KB |
Output is correct |
47 |
Correct |
24 ms |
5344 KB |
Output is correct |
48 |
Correct |
23 ms |
5212 KB |
Output is correct |
49 |
Correct |
49 ms |
10076 KB |
Output is correct |
50 |
Correct |
36 ms |
9308 KB |
Output is correct |
51 |
Correct |
29 ms |
6996 KB |
Output is correct |
52 |
Correct |
37 ms |
9296 KB |
Output is correct |
53 |
Correct |
30 ms |
9300 KB |
Output is correct |
54 |
Correct |
35 ms |
10064 KB |
Output is correct |
55 |
Correct |
38 ms |
10116 KB |
Output is correct |