#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define int long long
const int N = 2e5 + 69;
const int inf = 1e9 + 69;
int n, a[N], x, dp[N];
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int tt = 1;
//cin >> tt;
while (tt--) {
cin >> n >> x;
for (int i = 1;i <= n;i++)
cin >> a[i];
int ans = 0;
vector<int> dp(n, inf), bst(n + 1, inf);
for (int i = 1;i <= n;i++) {
auto u = lower_bound(dp.begin(), dp.end(), a[i]) - dp.begin();
ans += (dp[u] == inf);
dp[u] = a[i];
bst[i] = u + 1;
}
fill(dp.begin(), dp.end(), inf);
for (int i = n;i >= 1;i--) {
auto u = lower_bound(dp.begin(), dp.end(), -(a[i] - x)) - dp.begin();
ans = max(ans, bst[i] + u);
u = lower_bound(dp.begin(), dp.end(), -a[i]) - dp.begin();
dp[u] = -a[i];
}
cout << ans;
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2480 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2480 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2392 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2392 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2480 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2392 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2392 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2392 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
22 |
Correct |
1 ms |
2396 KB |
Output is correct |
23 |
Correct |
1 ms |
2396 KB |
Output is correct |
24 |
Correct |
1 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
48 ms |
6492 KB |
Output is correct |
2 |
Correct |
48 ms |
6488 KB |
Output is correct |
3 |
Correct |
48 ms |
6492 KB |
Output is correct |
4 |
Correct |
48 ms |
6492 KB |
Output is correct |
5 |
Correct |
34 ms |
6492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
3164 KB |
Output is correct |
2 |
Correct |
11 ms |
3292 KB |
Output is correct |
3 |
Correct |
11 ms |
3320 KB |
Output is correct |
4 |
Correct |
9 ms |
3164 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
9 ms |
3316 KB |
Output is correct |
7 |
Correct |
10 ms |
3164 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
20 ms |
4184 KB |
Output is correct |
2 |
Correct |
20 ms |
4188 KB |
Output is correct |
3 |
Correct |
41 ms |
6488 KB |
Output is correct |
4 |
Correct |
34 ms |
6688 KB |
Output is correct |
5 |
Correct |
17 ms |
4188 KB |
Output is correct |
6 |
Correct |
28 ms |
6236 KB |
Output is correct |
7 |
Correct |
31 ms |
6236 KB |
Output is correct |
8 |
Correct |
17 ms |
4188 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
0 ms |
2480 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2392 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2392 KB |
Output is correct |
15 |
Correct |
1 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2392 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
22 |
Correct |
1 ms |
2396 KB |
Output is correct |
23 |
Correct |
1 ms |
2396 KB |
Output is correct |
24 |
Correct |
1 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
1 ms |
2396 KB |
Output is correct |
27 |
Correct |
48 ms |
6492 KB |
Output is correct |
28 |
Correct |
48 ms |
6488 KB |
Output is correct |
29 |
Correct |
48 ms |
6492 KB |
Output is correct |
30 |
Correct |
48 ms |
6492 KB |
Output is correct |
31 |
Correct |
34 ms |
6492 KB |
Output is correct |
32 |
Correct |
12 ms |
3164 KB |
Output is correct |
33 |
Correct |
11 ms |
3292 KB |
Output is correct |
34 |
Correct |
11 ms |
3320 KB |
Output is correct |
35 |
Correct |
9 ms |
3164 KB |
Output is correct |
36 |
Correct |
0 ms |
2396 KB |
Output is correct |
37 |
Correct |
9 ms |
3316 KB |
Output is correct |
38 |
Correct |
10 ms |
3164 KB |
Output is correct |
39 |
Correct |
20 ms |
4184 KB |
Output is correct |
40 |
Correct |
20 ms |
4188 KB |
Output is correct |
41 |
Correct |
41 ms |
6488 KB |
Output is correct |
42 |
Correct |
34 ms |
6688 KB |
Output is correct |
43 |
Correct |
17 ms |
4188 KB |
Output is correct |
44 |
Correct |
28 ms |
6236 KB |
Output is correct |
45 |
Correct |
31 ms |
6236 KB |
Output is correct |
46 |
Correct |
17 ms |
4188 KB |
Output is correct |
47 |
Correct |
23 ms |
4936 KB |
Output is correct |
48 |
Correct |
23 ms |
4956 KB |
Output is correct |
49 |
Correct |
48 ms |
7756 KB |
Output is correct |
50 |
Correct |
34 ms |
7256 KB |
Output is correct |
51 |
Correct |
30 ms |
6232 KB |
Output is correct |
52 |
Correct |
35 ms |
7248 KB |
Output is correct |
53 |
Correct |
29 ms |
7256 KB |
Output is correct |
54 |
Correct |
33 ms |
7772 KB |
Output is correct |
55 |
Correct |
40 ms |
7772 KB |
Output is correct |