#include <bits/stdc++.h>
using namespace std;
using lint = long long;
const lint INF = 1e15;
lint N, X;
lint A[200005];
lint lis[200005];
lint lds[200005];
lint anslis[200005];
lint LIS() {
for (int i = 0; i <= N; i++) lis[i] = INF, lds[i] = -INF;
lis[0] = -INF, lds[N] = INF;
lint res = 0;
for (lint i = 0; i < N; i++) {
lint j = lower_bound(lis, lis + N + 1, A[i]) - lis;
lis[j] = A[i], res = max(res, j);
anslis[i] = j;
}
for (lint i = N - 1; i >= 0; i--) {
lint j = upper_bound(lds, lds + N + 1, A[i] - X) - lds;
res = max(res, anslis[i] + N - j);
j = upper_bound(lds, lds + N + 1, A[i]) - lds - 1;
lds[j] = A[i];
}
return res;
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> N >> X;
for (int i = 0; i < N; i++) cin >> A[i];
lint ans = LIS();
cout << ans << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
4 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
4 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
4 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
4 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
6 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
384 KB |
Output is correct |
| 18 |
Correct |
4 ms |
256 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
4 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
4 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
6 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
384 KB |
Output is correct |
| 18 |
Correct |
4 ms |
256 KB |
Output is correct |
| 19 |
Correct |
5 ms |
384 KB |
Output is correct |
| 20 |
Correct |
5 ms |
384 KB |
Output is correct |
| 21 |
Correct |
5 ms |
384 KB |
Output is correct |
| 22 |
Correct |
5 ms |
384 KB |
Output is correct |
| 23 |
Correct |
5 ms |
384 KB |
Output is correct |
| 24 |
Correct |
5 ms |
384 KB |
Output is correct |
| 25 |
Correct |
5 ms |
384 KB |
Output is correct |
| 26 |
Correct |
5 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
77 ms |
8568 KB |
Output is correct |
| 2 |
Correct |
73 ms |
8440 KB |
Output is correct |
| 3 |
Correct |
75 ms |
8568 KB |
Output is correct |
| 4 |
Correct |
76 ms |
8568 KB |
Output is correct |
| 5 |
Correct |
56 ms |
7800 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
20 ms |
2432 KB |
Output is correct |
| 2 |
Correct |
21 ms |
2432 KB |
Output is correct |
| 3 |
Correct |
21 ms |
2432 KB |
Output is correct |
| 4 |
Correct |
18 ms |
2176 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
18 ms |
2176 KB |
Output is correct |
| 7 |
Correct |
19 ms |
2432 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
36 ms |
4472 KB |
Output is correct |
| 2 |
Correct |
36 ms |
4472 KB |
Output is correct |
| 3 |
Correct |
71 ms |
8568 KB |
Output is correct |
| 4 |
Correct |
55 ms |
7808 KB |
Output is correct |
| 5 |
Correct |
33 ms |
4096 KB |
Output is correct |
| 6 |
Correct |
50 ms |
7416 KB |
Output is correct |
| 7 |
Correct |
57 ms |
8184 KB |
Output is correct |
| 8 |
Correct |
33 ms |
4480 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
4 ms |
384 KB |
Output is correct |
| 9 |
Correct |
4 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
256 KB |
Output is correct |
| 11 |
Correct |
4 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
6 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
384 KB |
Output is correct |
| 18 |
Correct |
4 ms |
256 KB |
Output is correct |
| 19 |
Correct |
5 ms |
384 KB |
Output is correct |
| 20 |
Correct |
5 ms |
384 KB |
Output is correct |
| 21 |
Correct |
5 ms |
384 KB |
Output is correct |
| 22 |
Correct |
5 ms |
384 KB |
Output is correct |
| 23 |
Correct |
5 ms |
384 KB |
Output is correct |
| 24 |
Correct |
5 ms |
384 KB |
Output is correct |
| 25 |
Correct |
5 ms |
384 KB |
Output is correct |
| 26 |
Correct |
5 ms |
384 KB |
Output is correct |
| 27 |
Correct |
77 ms |
8568 KB |
Output is correct |
| 28 |
Correct |
73 ms |
8440 KB |
Output is correct |
| 29 |
Correct |
75 ms |
8568 KB |
Output is correct |
| 30 |
Correct |
76 ms |
8568 KB |
Output is correct |
| 31 |
Correct |
56 ms |
7800 KB |
Output is correct |
| 32 |
Correct |
20 ms |
2432 KB |
Output is correct |
| 33 |
Correct |
21 ms |
2432 KB |
Output is correct |
| 34 |
Correct |
21 ms |
2432 KB |
Output is correct |
| 35 |
Correct |
18 ms |
2176 KB |
Output is correct |
| 36 |
Correct |
5 ms |
384 KB |
Output is correct |
| 37 |
Correct |
18 ms |
2176 KB |
Output is correct |
| 38 |
Correct |
19 ms |
2432 KB |
Output is correct |
| 39 |
Correct |
36 ms |
4472 KB |
Output is correct |
| 40 |
Correct |
36 ms |
4472 KB |
Output is correct |
| 41 |
Correct |
71 ms |
8568 KB |
Output is correct |
| 42 |
Correct |
55 ms |
7808 KB |
Output is correct |
| 43 |
Correct |
33 ms |
4096 KB |
Output is correct |
| 44 |
Correct |
50 ms |
7416 KB |
Output is correct |
| 45 |
Correct |
57 ms |
8184 KB |
Output is correct |
| 46 |
Correct |
33 ms |
4480 KB |
Output is correct |
| 47 |
Correct |
38 ms |
4472 KB |
Output is correct |
| 48 |
Correct |
38 ms |
4480 KB |
Output is correct |
| 49 |
Correct |
76 ms |
8440 KB |
Output is correct |
| 50 |
Correct |
57 ms |
7800 KB |
Output is correct |
| 51 |
Correct |
45 ms |
5880 KB |
Output is correct |
| 52 |
Correct |
57 ms |
7936 KB |
Output is correct |
| 53 |
Correct |
54 ms |
7800 KB |
Output is correct |
| 54 |
Correct |
61 ms |
8568 KB |
Output is correct |
| 55 |
Correct |
65 ms |
8568 KB |
Output is correct |
