#include <iostream>
#include <algorithm>
using namespace std;
int arr[200001], len[200001];
int *lis;
int main() {
int n, x; cin >> n >> x;
for (int i = 0; i < n; i++) cin >> arr[i];
lis = new int[n];
fill(lis, lis+n, __INT_MAX__);
int mx = 0, l = 0;
for (int i = 0; i < n; ++i) {
int *j = lower_bound(lis, lis+mx, arr[i]);
*j = arr[i];
len[i] = j-lis + 1;
mx = max(mx, len[i]);
} l = mx;
fill (lis, lis+n, __INT_MAX__);
for (int i = n-1; i >= 0; --i) {
int* pos = lower_bound(lis, lis+l, -arr[i] + x);
mx = max(mx, len[i] + int(pos-lis));
int* insert_pos = lower_bound(lis, lis+l, -arr[i]);
*insert_pos = -arr[i];
}
cout << mx << endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
1 ms |
436 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
504 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
1 ms |
436 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
504 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
336 KB |
Output is correct |
14 |
Correct |
1 ms |
336 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
1 ms |
336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
1 ms |
436 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
504 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
336 KB |
Output is correct |
14 |
Correct |
1 ms |
336 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
1 ms |
336 KB |
Output is correct |
19 |
Correct |
1 ms |
336 KB |
Output is correct |
20 |
Correct |
1 ms |
336 KB |
Output is correct |
21 |
Correct |
1 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
336 KB |
Output is correct |
25 |
Correct |
1 ms |
336 KB |
Output is correct |
26 |
Correct |
1 ms |
504 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
76 ms |
2772 KB |
Output is correct |
2 |
Correct |
75 ms |
2640 KB |
Output is correct |
3 |
Correct |
77 ms |
2616 KB |
Output is correct |
4 |
Correct |
82 ms |
2632 KB |
Output is correct |
5 |
Correct |
52 ms |
2788 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
848 KB |
Output is correct |
2 |
Correct |
18 ms |
848 KB |
Output is correct |
3 |
Correct |
20 ms |
848 KB |
Output is correct |
4 |
Correct |
14 ms |
848 KB |
Output is correct |
5 |
Correct |
1 ms |
588 KB |
Output is correct |
6 |
Correct |
13 ms |
848 KB |
Output is correct |
7 |
Correct |
16 ms |
848 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
36 ms |
1524 KB |
Output is correct |
2 |
Correct |
42 ms |
1560 KB |
Output is correct |
3 |
Correct |
77 ms |
2632 KB |
Output is correct |
4 |
Correct |
54 ms |
2632 KB |
Output is correct |
5 |
Correct |
26 ms |
1616 KB |
Output is correct |
6 |
Correct |
54 ms |
2632 KB |
Output is correct |
7 |
Correct |
61 ms |
2440 KB |
Output is correct |
8 |
Correct |
34 ms |
1616 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
1 ms |
436 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
504 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
10 |
Correct |
1 ms |
336 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
336 KB |
Output is correct |
14 |
Correct |
1 ms |
336 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
336 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
1 ms |
336 KB |
Output is correct |
19 |
Correct |
1 ms |
336 KB |
Output is correct |
20 |
Correct |
1 ms |
336 KB |
Output is correct |
21 |
Correct |
1 ms |
336 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
1 ms |
336 KB |
Output is correct |
24 |
Correct |
1 ms |
336 KB |
Output is correct |
25 |
Correct |
1 ms |
336 KB |
Output is correct |
26 |
Correct |
1 ms |
504 KB |
Output is correct |
27 |
Correct |
76 ms |
2772 KB |
Output is correct |
28 |
Correct |
75 ms |
2640 KB |
Output is correct |
29 |
Correct |
77 ms |
2616 KB |
Output is correct |
30 |
Correct |
82 ms |
2632 KB |
Output is correct |
31 |
Correct |
52 ms |
2788 KB |
Output is correct |
32 |
Correct |
18 ms |
848 KB |
Output is correct |
33 |
Correct |
18 ms |
848 KB |
Output is correct |
34 |
Correct |
20 ms |
848 KB |
Output is correct |
35 |
Correct |
14 ms |
848 KB |
Output is correct |
36 |
Correct |
1 ms |
588 KB |
Output is correct |
37 |
Correct |
13 ms |
848 KB |
Output is correct |
38 |
Correct |
16 ms |
848 KB |
Output is correct |
39 |
Correct |
36 ms |
1524 KB |
Output is correct |
40 |
Correct |
42 ms |
1560 KB |
Output is correct |
41 |
Correct |
77 ms |
2632 KB |
Output is correct |
42 |
Correct |
54 ms |
2632 KB |
Output is correct |
43 |
Correct |
26 ms |
1616 KB |
Output is correct |
44 |
Correct |
54 ms |
2632 KB |
Output is correct |
45 |
Correct |
61 ms |
2440 KB |
Output is correct |
46 |
Correct |
34 ms |
1616 KB |
Output is correct |
47 |
Correct |
42 ms |
1608 KB |
Output is correct |
48 |
Correct |
36 ms |
1616 KB |
Output is correct |
49 |
Correct |
73 ms |
2632 KB |
Output is correct |
50 |
Correct |
51 ms |
2644 KB |
Output is correct |
51 |
Correct |
40 ms |
2120 KB |
Output is correct |
52 |
Correct |
52 ms |
2684 KB |
Output is correct |
53 |
Correct |
53 ms |
2632 KB |
Output is correct |
54 |
Correct |
74 ms |
2632 KB |
Output is correct |
55 |
Correct |
66 ms |
2532 KB |
Output is correct |