#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<ll, ll> pii;
typedef pair<ld, ld> pld;
struct lis{
set<pii> s;
void add(pii nw){
s.insert(nw);
auto it = s.lower_bound(nw);
if(it != s.begin()){
auto it2 = it;
--it2;
if(it2->ss >= it->ss){
s.erase(it);
return;
}
}
++it;
while(it != s.end()){
if(it->ss <= nw.ss)
it = s.erase(it);
else
break;
}
}
ll get(ll x){
auto it = s.lower_bound({x, 0});
if(it == s.begin())
return 0;
--it;
return it->ss;
}
};
lis s1, s2;
ll n, x;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
//freopen("in.txt", "r", stdin);
//freopen("out.txt", "w", stdout);
cin >> n >> x;
ll ans = 0;
while(n--){
ll a;
cin >> a;
ll val = max(s1.get(a+x), s2.get(a));
ans = max(ans, val+1);
s2.add({a, val+1});
val = s1.get(a);
ans = max(ans, val+1);
s1.add({a, val+1});
}
cout << ans << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
0 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 |
312 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
308 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
0 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 |
312 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
308 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 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 |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
0 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 |
312 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
308 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 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 |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
320 KB |
Output is correct |
24 |
Correct |
1 ms |
332 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 |
164 ms |
348 KB |
Output is correct |
2 |
Correct |
163 ms |
348 KB |
Output is correct |
3 |
Correct |
163 ms |
344 KB |
Output is correct |
4 |
Correct |
170 ms |
372 KB |
Output is correct |
5 |
Correct |
204 ms |
12732 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
332 KB |
Output is correct |
2 |
Correct |
38 ms |
716 KB |
Output is correct |
3 |
Correct |
38 ms |
840 KB |
Output is correct |
4 |
Correct |
44 ms |
3688 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
60 ms |
3648 KB |
Output is correct |
7 |
Correct |
30 ms |
832 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
73 ms |
328 KB |
Output is correct |
2 |
Correct |
73 ms |
344 KB |
Output is correct |
3 |
Correct |
154 ms |
360 KB |
Output is correct |
4 |
Correct |
142 ms |
8572 KB |
Output is correct |
5 |
Correct |
130 ms |
6496 KB |
Output is correct |
6 |
Correct |
193 ms |
12100 KB |
Output is correct |
7 |
Correct |
160 ms |
12076 KB |
Output is correct |
8 |
Correct |
58 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
0 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 |
312 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
308 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 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 |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
320 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
164 ms |
348 KB |
Output is correct |
28 |
Correct |
163 ms |
348 KB |
Output is correct |
29 |
Correct |
163 ms |
344 KB |
Output is correct |
30 |
Correct |
170 ms |
372 KB |
Output is correct |
31 |
Correct |
204 ms |
12732 KB |
Output is correct |
32 |
Correct |
38 ms |
332 KB |
Output is correct |
33 |
Correct |
38 ms |
716 KB |
Output is correct |
34 |
Correct |
38 ms |
840 KB |
Output is correct |
35 |
Correct |
44 ms |
3688 KB |
Output is correct |
36 |
Correct |
1 ms |
204 KB |
Output is correct |
37 |
Correct |
60 ms |
3648 KB |
Output is correct |
38 |
Correct |
30 ms |
832 KB |
Output is correct |
39 |
Correct |
73 ms |
328 KB |
Output is correct |
40 |
Correct |
73 ms |
344 KB |
Output is correct |
41 |
Correct |
154 ms |
360 KB |
Output is correct |
42 |
Correct |
142 ms |
8572 KB |
Output is correct |
43 |
Correct |
130 ms |
6496 KB |
Output is correct |
44 |
Correct |
193 ms |
12100 KB |
Output is correct |
45 |
Correct |
160 ms |
12076 KB |
Output is correct |
46 |
Correct |
58 ms |
332 KB |
Output is correct |
47 |
Correct |
78 ms |
1216 KB |
Output is correct |
48 |
Correct |
79 ms |
1224 KB |
Output is correct |
49 |
Correct |
167 ms |
2324 KB |
Output is correct |
50 |
Correct |
203 ms |
13896 KB |
Output is correct |
51 |
Correct |
201 ms |
13640 KB |
Output is correct |
52 |
Correct |
273 ms |
14028 KB |
Output is correct |
53 |
Correct |
208 ms |
14148 KB |
Output is correct |
54 |
Correct |
169 ms |
14776 KB |
Output is correct |
55 |
Correct |
135 ms |
2260 KB |
Output is correct |