#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
typedef long long ll;
using namespace std;
int dp[200001], a[200001];
vector<int> lis, lds;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m;
cin >> n >> m;
FOR(i, 0, n) {
cin >> a[i];
dp[i] = (lis.size() ? lower_bound(lis.begin(), lis.end(), a[i] + m) - lis.begin() : 0);
int dist = (lis.size() ? lower_bound(lis.begin(), lis.end(), a[i]) - lis.begin() : 0);
if (dist == lis.size()) lis.push_back(a[i]);
else lis[dist] = a[i];
}
int ans = 0;
for (int i = n - 1; ~i; i--) {
int dist = (lds.size() ? lower_bound(lds.begin(), lds.end(), -a[i]) - lds.begin() : 0);
if (dist == lds.size()) lds.push_back(-a[i]);
else lds[dist] = -a[i];
ans = max(ans, dp[i] + dist + 1);
}
cout << ans;
return 0;
}
Compilation message
glo.cpp: In function 'int main()':
glo.cpp:19:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (dist == lis.size()) lis.push_back(a[i]);
~~~~~^~~~~~~~~~~~~
glo.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (dist == lds.size()) lds.push_back(-a[i]);
~~~~~^~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 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 |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
1 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
416 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 |
376 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 |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
1 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
416 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 |
504 KB |
Output is correct |
18 |
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 |
376 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 |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
1 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
416 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 |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
504 KB |
Output is correct |
25 |
Correct |
2 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
67 ms |
2724 KB |
Output is correct |
2 |
Correct |
67 ms |
2704 KB |
Output is correct |
3 |
Correct |
67 ms |
2616 KB |
Output is correct |
4 |
Correct |
67 ms |
2808 KB |
Output is correct |
5 |
Correct |
42 ms |
3828 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
1272 KB |
Output is correct |
2 |
Correct |
17 ms |
1144 KB |
Output is correct |
3 |
Correct |
17 ms |
1252 KB |
Output is correct |
4 |
Correct |
12 ms |
1400 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
12 ms |
1300 KB |
Output is correct |
7 |
Correct |
14 ms |
1272 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
30 ms |
1912 KB |
Output is correct |
2 |
Correct |
30 ms |
1912 KB |
Output is correct |
3 |
Correct |
62 ms |
2652 KB |
Output is correct |
4 |
Correct |
45 ms |
3768 KB |
Output is correct |
5 |
Correct |
23 ms |
2308 KB |
Output is correct |
6 |
Correct |
40 ms |
3728 KB |
Output is correct |
7 |
Correct |
42 ms |
3700 KB |
Output is correct |
8 |
Correct |
27 ms |
1912 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 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 |
504 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
1 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
416 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 |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
504 KB |
Output is correct |
25 |
Correct |
2 ms |
384 KB |
Output is correct |
26 |
Correct |
2 ms |
380 KB |
Output is correct |
27 |
Correct |
67 ms |
2724 KB |
Output is correct |
28 |
Correct |
67 ms |
2704 KB |
Output is correct |
29 |
Correct |
67 ms |
2616 KB |
Output is correct |
30 |
Correct |
67 ms |
2808 KB |
Output is correct |
31 |
Correct |
42 ms |
3828 KB |
Output is correct |
32 |
Correct |
17 ms |
1272 KB |
Output is correct |
33 |
Correct |
17 ms |
1144 KB |
Output is correct |
34 |
Correct |
17 ms |
1252 KB |
Output is correct |
35 |
Correct |
12 ms |
1400 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
12 ms |
1300 KB |
Output is correct |
38 |
Correct |
14 ms |
1272 KB |
Output is correct |
39 |
Correct |
30 ms |
1912 KB |
Output is correct |
40 |
Correct |
30 ms |
1912 KB |
Output is correct |
41 |
Correct |
62 ms |
2652 KB |
Output is correct |
42 |
Correct |
45 ms |
3768 KB |
Output is correct |
43 |
Correct |
23 ms |
2308 KB |
Output is correct |
44 |
Correct |
40 ms |
3728 KB |
Output is correct |
45 |
Correct |
42 ms |
3700 KB |
Output is correct |
46 |
Correct |
27 ms |
1912 KB |
Output is correct |
47 |
Correct |
33 ms |
2140 KB |
Output is correct |
48 |
Correct |
33 ms |
2040 KB |
Output is correct |
49 |
Correct |
67 ms |
3832 KB |
Output is correct |
50 |
Correct |
42 ms |
4300 KB |
Output is correct |
51 |
Correct |
36 ms |
3572 KB |
Output is correct |
52 |
Correct |
46 ms |
4328 KB |
Output is correct |
53 |
Correct |
43 ms |
4320 KB |
Output is correct |
54 |
Correct |
44 ms |
5108 KB |
Output is correct |
55 |
Correct |
57 ms |
3832 KB |
Output is correct |