#include <iostream>
#include <cstdio>
#include <vector>
#include <cmath>
#include <algorithm>
using namespace std;
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, x;
cin >> n >> x;
vector<int> pfxlissz(n);
vector<int> lis(0);
vector<int> t(n);
for (int i = 0; i < n; i++) cin >> t[i];
for (int i = 0; i < n; i++)
{
pfxlissz[i] = lis.size();
pfxlissz[i] = lower_bound(lis.begin(), lis.end(), t[i] + x) - lis.begin();
if (lis.empty() || (lis.back() < t[i])) lis.push_back(t[i]);
int l = lower_bound(lis.begin(), lis.end(), t[i]) - lis.begin();
lis[l] = t[i];
}
vector<int> sfxldssz(n);
lis.clear();
for (int i = n - 1; i > -1; i--)
{
if (lis.empty() || (lis.back() + t[i] < 0)) lis.push_back(-t[i]);
sfxldssz[i] = lower_bound(lis.begin(), lis.end(), -t[i]) - lis.begin();
lis[sfxldssz[i]] = -t[i];
}
int ans = sfxldssz[0];
for (int i = 1; i < n; i++) ans = fmax(ans, pfxlissz[i] + sfxldssz[i]);
cout << ++ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
412 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
412 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 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 |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
412 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 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 |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
37 ms |
3964 KB |
Output is correct |
2 |
Correct |
39 ms |
4740 KB |
Output is correct |
3 |
Correct |
39 ms |
4552 KB |
Output is correct |
4 |
Correct |
37 ms |
4688 KB |
Output is correct |
5 |
Correct |
20 ms |
4316 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
1372 KB |
Output is correct |
2 |
Correct |
10 ms |
1360 KB |
Output is correct |
3 |
Correct |
10 ms |
1344 KB |
Output is correct |
4 |
Correct |
5 ms |
1372 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
6 ms |
1372 KB |
Output is correct |
7 |
Correct |
7 ms |
1372 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
2392 KB |
Output is correct |
2 |
Correct |
17 ms |
2396 KB |
Output is correct |
3 |
Correct |
34 ms |
3928 KB |
Output is correct |
4 |
Correct |
21 ms |
4060 KB |
Output is correct |
5 |
Correct |
10 ms |
2272 KB |
Output is correct |
6 |
Correct |
20 ms |
3892 KB |
Output is correct |
7 |
Correct |
22 ms |
4308 KB |
Output is correct |
8 |
Correct |
14 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
412 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 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 |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
37 ms |
3964 KB |
Output is correct |
28 |
Correct |
39 ms |
4740 KB |
Output is correct |
29 |
Correct |
39 ms |
4552 KB |
Output is correct |
30 |
Correct |
37 ms |
4688 KB |
Output is correct |
31 |
Correct |
20 ms |
4316 KB |
Output is correct |
32 |
Correct |
10 ms |
1372 KB |
Output is correct |
33 |
Correct |
10 ms |
1360 KB |
Output is correct |
34 |
Correct |
10 ms |
1344 KB |
Output is correct |
35 |
Correct |
5 ms |
1372 KB |
Output is correct |
36 |
Correct |
0 ms |
604 KB |
Output is correct |
37 |
Correct |
6 ms |
1372 KB |
Output is correct |
38 |
Correct |
7 ms |
1372 KB |
Output is correct |
39 |
Correct |
17 ms |
2392 KB |
Output is correct |
40 |
Correct |
17 ms |
2396 KB |
Output is correct |
41 |
Correct |
34 ms |
3928 KB |
Output is correct |
42 |
Correct |
21 ms |
4060 KB |
Output is correct |
43 |
Correct |
10 ms |
2272 KB |
Output is correct |
44 |
Correct |
20 ms |
3892 KB |
Output is correct |
45 |
Correct |
22 ms |
4308 KB |
Output is correct |
46 |
Correct |
14 ms |
2396 KB |
Output is correct |
47 |
Correct |
18 ms |
2396 KB |
Output is correct |
48 |
Correct |
18 ms |
2392 KB |
Output is correct |
49 |
Correct |
39 ms |
4572 KB |
Output is correct |
50 |
Correct |
20 ms |
4316 KB |
Output is correct |
51 |
Correct |
18 ms |
3620 KB |
Output is correct |
52 |
Correct |
20 ms |
4824 KB |
Output is correct |
53 |
Correct |
19 ms |
4568 KB |
Output is correct |
54 |
Correct |
24 ms |
5096 KB |
Output is correct |
55 |
Correct |
31 ms |
4688 KB |
Output is correct |