#include <bits/stdc++.h>
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
const int N = 2e5 + 10;
int n, x;
int a[N], b[N];
int BIT[N], prf[N], suf[N];
void add(int i, int val) {
for (; i < N; i += i & (- i)) BIT[i] = max(BIT[i], val);
}
int get(int i) {
int ans = 0;
for (; i; i -= i & - i) ans = max(ans, BIT[i]);
return ans;
}
int main() {
ios :: sync_with_stdio(0); cin.tie(0);
cin >> n >> x;
for (int i = 1; i <= n; ++i) cin >> a[i];
vector <int> dta;
for (int i = 1; i <= n; ++i) dta.push_back(a[i]);
sort(dta.begin(), dta.end());
for (int i = 1; i <= n; ++i) b[i] = lower_bound(dta.begin(), dta.end(), a[i]) - dta.begin() + 1;
for (int i = 1; i <= n; ++i) {
prf[i] = get(b[i] - 1) + 1;
add(b[i], prf[i]);
}
memset(BIT, 0, sizeof(BIT));
for (int i = n; i >= 1; --i) {
suf[i] = get(n - b[i]) + 1;
add(n - b[i] + 1, suf[i]);
}
memset(BIT, 0, sizeof(BIT));
int ans = 0;
for (int i = 1; i <= n; ++i) {
int newv = lower_bound(dta.begin(), dta.end(), a[i] + x) - dta.begin() + 1;
ans = max(ans, get(newv - 1) + suf[i]);
add(b[i], prf[i]);
}
cout << ans;
}
Compilation message
glo.cpp:2: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
2 | #pragma GCC optimization ("O3")
|
glo.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
3 | #pragma GCC optimization ("unroll-loops")
|
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1100 KB |
Output is correct |
2 |
Correct |
1 ms |
1084 KB |
Output is correct |
3 |
Correct |
1 ms |
1080 KB |
Output is correct |
4 |
Correct |
1 ms |
1092 KB |
Output is correct |
5 |
Correct |
1 ms |
1100 KB |
Output is correct |
6 |
Correct |
1 ms |
1100 KB |
Output is correct |
7 |
Correct |
1 ms |
1100 KB |
Output is correct |
8 |
Correct |
1 ms |
1100 KB |
Output is correct |
9 |
Correct |
1 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
1088 KB |
Output is correct |
11 |
Correct |
1 ms |
1100 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1100 KB |
Output is correct |
2 |
Correct |
1 ms |
1084 KB |
Output is correct |
3 |
Correct |
1 ms |
1080 KB |
Output is correct |
4 |
Correct |
1 ms |
1092 KB |
Output is correct |
5 |
Correct |
1 ms |
1100 KB |
Output is correct |
6 |
Correct |
1 ms |
1100 KB |
Output is correct |
7 |
Correct |
1 ms |
1100 KB |
Output is correct |
8 |
Correct |
1 ms |
1100 KB |
Output is correct |
9 |
Correct |
1 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
1088 KB |
Output is correct |
11 |
Correct |
1 ms |
1100 KB |
Output is correct |
12 |
Correct |
1 ms |
1100 KB |
Output is correct |
13 |
Correct |
1 ms |
1016 KB |
Output is correct |
14 |
Correct |
1 ms |
1100 KB |
Output is correct |
15 |
Correct |
1 ms |
1100 KB |
Output is correct |
16 |
Correct |
1 ms |
1100 KB |
Output is correct |
17 |
Correct |
1 ms |
1088 KB |
Output is correct |
18 |
Correct |
1 ms |
1104 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1100 KB |
Output is correct |
2 |
Correct |
1 ms |
1084 KB |
Output is correct |
3 |
Correct |
1 ms |
1080 KB |
Output is correct |
4 |
Correct |
1 ms |
1092 KB |
Output is correct |
5 |
Correct |
1 ms |
1100 KB |
Output is correct |
6 |
Correct |
1 ms |
1100 KB |
Output is correct |
7 |
Correct |
1 ms |
1100 KB |
Output is correct |
8 |
Correct |
1 ms |
1100 KB |
Output is correct |
9 |
Correct |
1 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
1088 KB |
Output is correct |
11 |
Correct |
1 ms |
1100 KB |
Output is correct |
12 |
Correct |
1 ms |
1100 KB |
Output is correct |
13 |
Correct |
1 ms |
1016 KB |
Output is correct |
14 |
Correct |
1 ms |
1100 KB |
Output is correct |
15 |
Correct |
1 ms |
1100 KB |
Output is correct |
16 |
Correct |
1 ms |
1100 KB |
Output is correct |
17 |
Correct |
1 ms |
1088 KB |
Output is correct |
18 |
Correct |
1 ms |
1104 KB |
Output is correct |
19 |
Correct |
2 ms |
1100 KB |
Output is correct |
20 |
Correct |
2 ms |
1104 KB |
Output is correct |
21 |
Correct |
1 ms |
1104 KB |
Output is correct |
22 |
Correct |
1 ms |
1100 KB |
Output is correct |
23 |
Correct |
1 ms |
1088 KB |
Output is correct |
24 |
Correct |
1 ms |
1100 KB |
Output is correct |
25 |
Correct |
1 ms |
1100 KB |
Output is correct |
26 |
Correct |
1 ms |
1100 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
107 ms |
6968 KB |
Output is correct |
2 |
Correct |
116 ms |
7048 KB |
Output is correct |
3 |
Correct |
108 ms |
7020 KB |
Output is correct |
4 |
Correct |
109 ms |
6996 KB |
Output is correct |
5 |
Correct |
55 ms |
6252 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
30 ms |
2632 KB |
Output is correct |
2 |
Correct |
25 ms |
2632 KB |
Output is correct |
3 |
Correct |
26 ms |
2584 KB |
Output is correct |
4 |
Correct |
14 ms |
2436 KB |
Output is correct |
5 |
Correct |
1 ms |
1100 KB |
Output is correct |
6 |
Correct |
14 ms |
2488 KB |
Output is correct |
7 |
Correct |
20 ms |
2700 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
41 ms |
4084 KB |
Output is correct |
2 |
Correct |
40 ms |
4060 KB |
Output is correct |
3 |
Correct |
95 ms |
7020 KB |
Output is correct |
4 |
Correct |
52 ms |
6208 KB |
Output is correct |
5 |
Correct |
26 ms |
3652 KB |
Output is correct |
6 |
Correct |
55 ms |
6092 KB |
Output is correct |
7 |
Correct |
50 ms |
6688 KB |
Output is correct |
8 |
Correct |
35 ms |
4080 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1100 KB |
Output is correct |
2 |
Correct |
1 ms |
1084 KB |
Output is correct |
3 |
Correct |
1 ms |
1080 KB |
Output is correct |
4 |
Correct |
1 ms |
1092 KB |
Output is correct |
5 |
Correct |
1 ms |
1100 KB |
Output is correct |
6 |
Correct |
1 ms |
1100 KB |
Output is correct |
7 |
Correct |
1 ms |
1100 KB |
Output is correct |
8 |
Correct |
1 ms |
1100 KB |
Output is correct |
9 |
Correct |
1 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
1088 KB |
Output is correct |
11 |
Correct |
1 ms |
1100 KB |
Output is correct |
12 |
Correct |
1 ms |
1100 KB |
Output is correct |
13 |
Correct |
1 ms |
1016 KB |
Output is correct |
14 |
Correct |
1 ms |
1100 KB |
Output is correct |
15 |
Correct |
1 ms |
1100 KB |
Output is correct |
16 |
Correct |
1 ms |
1100 KB |
Output is correct |
17 |
Correct |
1 ms |
1088 KB |
Output is correct |
18 |
Correct |
1 ms |
1104 KB |
Output is correct |
19 |
Correct |
2 ms |
1100 KB |
Output is correct |
20 |
Correct |
2 ms |
1104 KB |
Output is correct |
21 |
Correct |
1 ms |
1104 KB |
Output is correct |
22 |
Correct |
1 ms |
1100 KB |
Output is correct |
23 |
Correct |
1 ms |
1088 KB |
Output is correct |
24 |
Correct |
1 ms |
1100 KB |
Output is correct |
25 |
Correct |
1 ms |
1100 KB |
Output is correct |
26 |
Correct |
1 ms |
1100 KB |
Output is correct |
27 |
Correct |
107 ms |
6968 KB |
Output is correct |
28 |
Correct |
116 ms |
7048 KB |
Output is correct |
29 |
Correct |
108 ms |
7020 KB |
Output is correct |
30 |
Correct |
109 ms |
6996 KB |
Output is correct |
31 |
Correct |
55 ms |
6252 KB |
Output is correct |
32 |
Correct |
30 ms |
2632 KB |
Output is correct |
33 |
Correct |
25 ms |
2632 KB |
Output is correct |
34 |
Correct |
26 ms |
2584 KB |
Output is correct |
35 |
Correct |
14 ms |
2436 KB |
Output is correct |
36 |
Correct |
1 ms |
1100 KB |
Output is correct |
37 |
Correct |
14 ms |
2488 KB |
Output is correct |
38 |
Correct |
20 ms |
2700 KB |
Output is correct |
39 |
Correct |
41 ms |
4084 KB |
Output is correct |
40 |
Correct |
40 ms |
4060 KB |
Output is correct |
41 |
Correct |
95 ms |
7020 KB |
Output is correct |
42 |
Correct |
52 ms |
6208 KB |
Output is correct |
43 |
Correct |
26 ms |
3652 KB |
Output is correct |
44 |
Correct |
55 ms |
6092 KB |
Output is correct |
45 |
Correct |
50 ms |
6688 KB |
Output is correct |
46 |
Correct |
35 ms |
4080 KB |
Output is correct |
47 |
Correct |
53 ms |
4136 KB |
Output is correct |
48 |
Correct |
57 ms |
4164 KB |
Output is correct |
49 |
Correct |
111 ms |
6948 KB |
Output is correct |
50 |
Correct |
61 ms |
6260 KB |
Output is correct |
51 |
Correct |
49 ms |
5104 KB |
Output is correct |
52 |
Correct |
72 ms |
6344 KB |
Output is correct |
53 |
Correct |
56 ms |
6332 KB |
Output is correct |
54 |
Correct |
51 ms |
7040 KB |
Output is correct |
55 |
Correct |
90 ms |
6972 KB |
Output is correct |