#include <bits/stdc++.h>
using namespace std;
#define ll long long int
#define F first
#define S second
#define pb push_back
const ll N = 2e5 + 10;
const ll M = 50;
const ll MOD = 1e9 + 7;
const ll INF = 1e9 + 10;
int n, X, a[N], l[N], r[N], f[N], ans;
int main() {
cin >> n >> X;
int len = 0;
for (int i = 0; i < n; i++){
cin >> a[i];
int p = lower_bound(l, l + len, a[i]) - l;
l[p] = a[i];
len = max(len, p + 1);
f[i] = p + 1;
}
ans = f[n - 1];
len = 0;
for (int i = n - 1; i >= 0; i--){
a[i] *= -1;
int p = upper_bound(r, r + len, a[i] - 1) - r;
ans = max(ans, f[i] + p);
a[i] -= X;
p = lower_bound(r, r + len, a[i]) - r;
r[p] = a[i];
len = max(len, p + 1);
}
cout << ans << '\n';
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
0 ms |
364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
364 KB |
Output is correct |
| 6 |
Correct |
0 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
0 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
0 ms |
364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
364 KB |
Output is correct |
| 6 |
Correct |
0 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
0 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
0 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
0 ms |
364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
364 KB |
Output is correct |
| 6 |
Correct |
0 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
0 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
0 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
364 KB |
Output is correct |
| 26 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
131 ms |
1952 KB |
Output is correct |
| 2 |
Correct |
121 ms |
1900 KB |
Output is correct |
| 3 |
Correct |
116 ms |
1900 KB |
Output is correct |
| 4 |
Correct |
125 ms |
1900 KB |
Output is correct |
| 5 |
Correct |
74 ms |
2688 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
28 ms |
748 KB |
Output is correct |
| 2 |
Correct |
29 ms |
748 KB |
Output is correct |
| 3 |
Correct |
30 ms |
748 KB |
Output is correct |
| 4 |
Correct |
19 ms |
876 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
18 ms |
876 KB |
Output is correct |
| 7 |
Correct |
26 ms |
748 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
53 ms |
1132 KB |
Output is correct |
| 2 |
Correct |
53 ms |
1260 KB |
Output is correct |
| 3 |
Correct |
109 ms |
1900 KB |
Output is correct |
| 4 |
Correct |
73 ms |
2668 KB |
Output is correct |
| 5 |
Correct |
36 ms |
1516 KB |
Output is correct |
| 6 |
Correct |
68 ms |
2540 KB |
Output is correct |
| 7 |
Correct |
89 ms |
2540 KB |
Output is correct |
| 8 |
Correct |
51 ms |
1132 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
0 ms |
364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
364 KB |
Output is correct |
| 6 |
Correct |
0 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
0 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
0 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
364 KB |
Output is correct |
| 26 |
Correct |
1 ms |
364 KB |
Output is correct |
| 27 |
Correct |
131 ms |
1952 KB |
Output is correct |
| 28 |
Correct |
121 ms |
1900 KB |
Output is correct |
| 29 |
Correct |
116 ms |
1900 KB |
Output is correct |
| 30 |
Correct |
125 ms |
1900 KB |
Output is correct |
| 31 |
Correct |
74 ms |
2688 KB |
Output is correct |
| 32 |
Correct |
28 ms |
748 KB |
Output is correct |
| 33 |
Correct |
29 ms |
748 KB |
Output is correct |
| 34 |
Correct |
30 ms |
748 KB |
Output is correct |
| 35 |
Correct |
19 ms |
876 KB |
Output is correct |
| 36 |
Correct |
1 ms |
364 KB |
Output is correct |
| 37 |
Correct |
18 ms |
876 KB |
Output is correct |
| 38 |
Correct |
26 ms |
748 KB |
Output is correct |
| 39 |
Correct |
53 ms |
1132 KB |
Output is correct |
| 40 |
Correct |
53 ms |
1260 KB |
Output is correct |
| 41 |
Correct |
109 ms |
1900 KB |
Output is correct |
| 42 |
Correct |
73 ms |
2668 KB |
Output is correct |
| 43 |
Correct |
36 ms |
1516 KB |
Output is correct |
| 44 |
Correct |
68 ms |
2540 KB |
Output is correct |
| 45 |
Correct |
89 ms |
2540 KB |
Output is correct |
| 46 |
Correct |
51 ms |
1132 KB |
Output is correct |
| 47 |
Correct |
58 ms |
1132 KB |
Output is correct |
| 48 |
Correct |
58 ms |
1132 KB |
Output is correct |
| 49 |
Correct |
117 ms |
1956 KB |
Output is correct |
| 50 |
Correct |
73 ms |
2668 KB |
Output is correct |
| 51 |
Correct |
57 ms |
2284 KB |
Output is correct |
| 52 |
Correct |
76 ms |
2668 KB |
Output is correct |
| 53 |
Correct |
73 ms |
2796 KB |
Output is correct |
| 54 |
Correct |
96 ms |
2668 KB |
Output is correct |
| 55 |
Correct |
106 ms |
1900 KB |
Output is correct |
