#include <bits/stdc++.h>
using namespace std;
#define int long long
const int inf = 1e18;
signed main() {
ios::sync_with_stdio(0); cin.tie(0);
int n, x; cin >> n >> x;
vector<int> a(n), L(n), R(n);
for (int i = 0; i < n; i++) cin >> a[i];
vector<int> dp(n, inf);
int mx = 0;
for (int i = 0; i < n; i++) {
int j = lower_bound(dp.begin(), dp.end(), a[i]) - dp.begin();
dp[j] = a[i];
L[i] = j + 1;
}
fill(dp.begin(), dp.end(), inf);
for (int i = n - 1; i >= 0; i--) {
int pos = lower_bound(dp.begin(), dp.end(), -(a[i] - x)) - dp.begin();
R[i] = pos;
pos = lower_bound(dp.begin(), dp.end(), -a[i]) - dp.begin();
dp[pos] = -a[i];
}
for (int i = 0; i < n; i++) {
mx = max(mx, L[i] + R[i]);
}
cout << mx << "\n";
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
312 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
312 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
308 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
312 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
308 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
320 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
316 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
53 ms |
8452 KB |
Output is correct |
| 2 |
Correct |
57 ms |
8448 KB |
Output is correct |
| 3 |
Correct |
55 ms |
8448 KB |
Output is correct |
| 4 |
Correct |
53 ms |
8376 KB |
Output is correct |
| 5 |
Correct |
41 ms |
7860 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
14 ms |
2380 KB |
Output is correct |
| 2 |
Correct |
13 ms |
2236 KB |
Output is correct |
| 3 |
Correct |
12 ms |
2232 KB |
Output is correct |
| 4 |
Correct |
11 ms |
2112 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
10 ms |
2116 KB |
Output is correct |
| 7 |
Correct |
12 ms |
2368 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
24 ms |
4312 KB |
Output is correct |
| 2 |
Correct |
27 ms |
4292 KB |
Output is correct |
| 3 |
Correct |
50 ms |
8516 KB |
Output is correct |
| 4 |
Correct |
40 ms |
7688 KB |
Output is correct |
| 5 |
Correct |
20 ms |
4032 KB |
Output is correct |
| 6 |
Correct |
35 ms |
7332 KB |
Output is correct |
| 7 |
Correct |
40 ms |
8100 KB |
Output is correct |
| 8 |
Correct |
21 ms |
4412 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
312 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
308 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
320 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
316 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
53 ms |
8452 KB |
Output is correct |
| 28 |
Correct |
57 ms |
8448 KB |
Output is correct |
| 29 |
Correct |
55 ms |
8448 KB |
Output is correct |
| 30 |
Correct |
53 ms |
8376 KB |
Output is correct |
| 31 |
Correct |
41 ms |
7860 KB |
Output is correct |
| 32 |
Correct |
14 ms |
2380 KB |
Output is correct |
| 33 |
Correct |
13 ms |
2236 KB |
Output is correct |
| 34 |
Correct |
12 ms |
2232 KB |
Output is correct |
| 35 |
Correct |
11 ms |
2112 KB |
Output is correct |
| 36 |
Correct |
1 ms |
204 KB |
Output is correct |
| 37 |
Correct |
10 ms |
2116 KB |
Output is correct |
| 38 |
Correct |
12 ms |
2368 KB |
Output is correct |
| 39 |
Correct |
24 ms |
4312 KB |
Output is correct |
| 40 |
Correct |
27 ms |
4292 KB |
Output is correct |
| 41 |
Correct |
50 ms |
8516 KB |
Output is correct |
| 42 |
Correct |
40 ms |
7688 KB |
Output is correct |
| 43 |
Correct |
20 ms |
4032 KB |
Output is correct |
| 44 |
Correct |
35 ms |
7332 KB |
Output is correct |
| 45 |
Correct |
40 ms |
8100 KB |
Output is correct |
| 46 |
Correct |
21 ms |
4412 KB |
Output is correct |
| 47 |
Correct |
27 ms |
4304 KB |
Output is correct |
| 48 |
Correct |
27 ms |
4304 KB |
Output is correct |
| 49 |
Correct |
52 ms |
8388 KB |
Output is correct |
| 50 |
Correct |
46 ms |
7684 KB |
Output is correct |
| 51 |
Correct |
34 ms |
5856 KB |
Output is correct |
| 52 |
Correct |
42 ms |
7816 KB |
Output is correct |
| 53 |
Correct |
39 ms |
7788 KB |
Output is correct |
| 54 |
Correct |
41 ms |
8508 KB |
Output is correct |
| 55 |
Correct |
48 ms |
8516 KB |
Output is correct |
