#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 222222;
ll a[N], l[N], d[N];
pair<int, int> change[N];
int main()
{
int n, x;
cin >> n >> x;
for(int i = 1; i <= n; i ++)
cin >> a[i];
int lis = 0;
for(int i = 0; i <= n; i ++)
l[i] = 2e9;
int ans = 0;
for(int i = 1; i <= n; i ++)
{
int id = lower_bound(l + 1, l + n + 1, a[i]) - l;
change[i] = {id, l[id]};
l[id] = a[i];
ans = max(ans, id);
}
int lds = 0;
for(int i = n; i >= 1; i --)
{
int id = lower_bound(d + 1, d + n + 1, a[i] + x, greater<int>()) - d;
d[id] = a[i] + x;
l[change[i].first] = change[i].second;
// cout << i << ' ' << id << '\n';
// for(int j = 0; j <= lds - 1; j ++)
// cout << d[j] << ' ';
// cout << '\n';
int it = lower_bound(l + 1, l + n + 1, a[i] + x) - l-1;
ans = max(ans, it + id);
}
cout << ans;
}
Compilation message
glo.cpp: In function 'int main()':
glo.cpp:16:6: warning: unused variable 'lis' [-Wunused-variable]
int lis = 0;
^~~
glo.cpp:27:6: warning: unused variable 'lds' [-Wunused-variable]
int lds = 0;
^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
380 KB |
Output is correct |
19 |
Correct |
3 ms |
376 KB |
Output is correct |
20 |
Correct |
3 ms |
380 KB |
Output is correct |
21 |
Correct |
3 ms |
376 KB |
Output is correct |
22 |
Correct |
3 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
3 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
380 KB |
Output is correct |
26 |
Correct |
3 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
193 ms |
5116 KB |
Output is correct |
2 |
Correct |
198 ms |
5132 KB |
Output is correct |
3 |
Correct |
193 ms |
5224 KB |
Output is correct |
4 |
Correct |
193 ms |
5116 KB |
Output is correct |
5 |
Correct |
138 ms |
5972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
48 ms |
1528 KB |
Output is correct |
2 |
Correct |
48 ms |
1528 KB |
Output is correct |
3 |
Correct |
48 ms |
1528 KB |
Output is correct |
4 |
Correct |
35 ms |
1784 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
35 ms |
1756 KB |
Output is correct |
7 |
Correct |
46 ms |
1528 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
92 ms |
2800 KB |
Output is correct |
2 |
Correct |
92 ms |
3704 KB |
Output is correct |
3 |
Correct |
186 ms |
6136 KB |
Output is correct |
4 |
Correct |
137 ms |
6776 KB |
Output is correct |
5 |
Correct |
72 ms |
3668 KB |
Output is correct |
6 |
Correct |
131 ms |
6648 KB |
Output is correct |
7 |
Correct |
169 ms |
6648 KB |
Output is correct |
8 |
Correct |
90 ms |
3716 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
380 KB |
Output is correct |
19 |
Correct |
3 ms |
376 KB |
Output is correct |
20 |
Correct |
3 ms |
380 KB |
Output is correct |
21 |
Correct |
3 ms |
376 KB |
Output is correct |
22 |
Correct |
3 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
3 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
380 KB |
Output is correct |
26 |
Correct |
3 ms |
376 KB |
Output is correct |
27 |
Correct |
193 ms |
5116 KB |
Output is correct |
28 |
Correct |
198 ms |
5132 KB |
Output is correct |
29 |
Correct |
193 ms |
5224 KB |
Output is correct |
30 |
Correct |
193 ms |
5116 KB |
Output is correct |
31 |
Correct |
138 ms |
5972 KB |
Output is correct |
32 |
Correct |
48 ms |
1528 KB |
Output is correct |
33 |
Correct |
48 ms |
1528 KB |
Output is correct |
34 |
Correct |
48 ms |
1528 KB |
Output is correct |
35 |
Correct |
35 ms |
1784 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
35 ms |
1756 KB |
Output is correct |
38 |
Correct |
46 ms |
1528 KB |
Output is correct |
39 |
Correct |
92 ms |
2800 KB |
Output is correct |
40 |
Correct |
92 ms |
3704 KB |
Output is correct |
41 |
Correct |
186 ms |
6136 KB |
Output is correct |
42 |
Correct |
137 ms |
6776 KB |
Output is correct |
43 |
Correct |
72 ms |
3668 KB |
Output is correct |
44 |
Correct |
131 ms |
6648 KB |
Output is correct |
45 |
Correct |
169 ms |
6648 KB |
Output is correct |
46 |
Correct |
90 ms |
3716 KB |
Output is correct |
47 |
Correct |
98 ms |
3836 KB |
Output is correct |
48 |
Correct |
96 ms |
3704 KB |
Output is correct |
49 |
Correct |
194 ms |
6980 KB |
Output is correct |
50 |
Correct |
137 ms |
7032 KB |
Output is correct |
51 |
Correct |
106 ms |
5556 KB |
Output is correct |
52 |
Correct |
145 ms |
7032 KB |
Output is correct |
53 |
Correct |
148 ms |
7032 KB |
Output is correct |
54 |
Correct |
192 ms |
7884 KB |
Output is correct |
55 |
Correct |
182 ms |
7004 KB |
Output is correct |