/**
____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|
**/
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N_MAX = 200000;
const int T_MAX = (int) 2e9;
int n, x;
int t[N_MAX + 2];
int u[N_MAX + 2];
int before[N_MAX + 2], after[N_MAX + 2];
int beforeFen[N_MAX * 2 + 2], afterFen[N_MAX * 2 + 2];
void update (int Fen[], int pos, int val) {
for (int i = pos; i <= n * 2; i += i & -i) {
Fen[i] = max(Fen[i], val);
}
}
int query (int Fen[], int pos) {
int ret = 0;
for (int i = pos; i >= 1; i -= i & -i) {
ret = max(ret, Fen[i]);
}
return ret;
}
int main () {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> n >> x;
for (int i = 1; i <= n; i++) {
cin >> t[i];
u[i] = t[i] + x;
}
map <int, int> mp;
for (int i = 1; i <= n; i++) {
mp[t[i]]; mp[u[i]];
}
int curr = 0;
for (pair <int, int> _ : mp) {
mp[_.first] = ++curr;
}
for (int i = 1; i <= n; i++) {
t[i] = mp[t[i]];
u[i] = mp[u[i]];
}
for (int i = 1; i <= n; i++) {
before[i] = query(beforeFen, t[i] - 1) + 1;
after[i] = max(query(afterFen, t[i] - 1), query(beforeFen, u[i] - 1)) + 1;
update(beforeFen, t[i], before[i]);
update(afterFen, t[i], after[i]);
}
cout << query(afterFen, n * 2) << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
0 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
0 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
0 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
1 ms |
460 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 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 |
236 ms |
14388 KB |
Output is correct |
2 |
Correct |
237 ms |
16256 KB |
Output is correct |
3 |
Correct |
241 ms |
16320 KB |
Output is correct |
4 |
Correct |
227 ms |
16320 KB |
Output is correct |
5 |
Correct |
94 ms |
10048 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
54 ms |
6596 KB |
Output is correct |
2 |
Correct |
57 ms |
6516 KB |
Output is correct |
3 |
Correct |
53 ms |
6484 KB |
Output is correct |
4 |
Correct |
25 ms |
3852 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
27 ms |
3840 KB |
Output is correct |
7 |
Correct |
41 ms |
5656 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
149 ms |
12232 KB |
Output is correct |
2 |
Correct |
141 ms |
12004 KB |
Output is correct |
3 |
Correct |
366 ms |
23712 KB |
Output is correct |
4 |
Correct |
152 ms |
14840 KB |
Output is correct |
5 |
Correct |
94 ms |
12608 KB |
Output is correct |
6 |
Correct |
182 ms |
23860 KB |
Output is correct |
7 |
Correct |
195 ms |
24500 KB |
Output is correct |
8 |
Correct |
109 ms |
13020 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
0 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
0 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
0 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
460 KB |
Output is correct |
20 |
Correct |
1 ms |
460 KB |
Output is correct |
21 |
Correct |
1 ms |
460 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 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 |
236 ms |
14388 KB |
Output is correct |
28 |
Correct |
237 ms |
16256 KB |
Output is correct |
29 |
Correct |
241 ms |
16320 KB |
Output is correct |
30 |
Correct |
227 ms |
16320 KB |
Output is correct |
31 |
Correct |
94 ms |
10048 KB |
Output is correct |
32 |
Correct |
54 ms |
6596 KB |
Output is correct |
33 |
Correct |
57 ms |
6516 KB |
Output is correct |
34 |
Correct |
53 ms |
6484 KB |
Output is correct |
35 |
Correct |
25 ms |
3852 KB |
Output is correct |
36 |
Correct |
0 ms |
332 KB |
Output is correct |
37 |
Correct |
27 ms |
3840 KB |
Output is correct |
38 |
Correct |
41 ms |
5656 KB |
Output is correct |
39 |
Correct |
149 ms |
12232 KB |
Output is correct |
40 |
Correct |
141 ms |
12004 KB |
Output is correct |
41 |
Correct |
366 ms |
23712 KB |
Output is correct |
42 |
Correct |
152 ms |
14840 KB |
Output is correct |
43 |
Correct |
94 ms |
12608 KB |
Output is correct |
44 |
Correct |
182 ms |
23860 KB |
Output is correct |
45 |
Correct |
195 ms |
24500 KB |
Output is correct |
46 |
Correct |
109 ms |
13020 KB |
Output is correct |
47 |
Correct |
132 ms |
13752 KB |
Output is correct |
48 |
Correct |
142 ms |
13756 KB |
Output is correct |
49 |
Correct |
377 ms |
27224 KB |
Output is correct |
50 |
Correct |
96 ms |
15700 KB |
Output is correct |
51 |
Correct |
100 ms |
11432 KB |
Output is correct |
52 |
Correct |
144 ms |
15680 KB |
Output is correct |
53 |
Correct |
193 ms |
25032 KB |
Output is correct |
54 |
Correct |
205 ms |
25664 KB |
Output is correct |
55 |
Correct |
210 ms |
23640 KB |
Output is correct |