#include<bits/stdc++.h>
using namespace std;
long long max(long long &a,long long &b) {return a>b?a:b;}
int main() {
long long n,x;cin>>n>>x;
long long a[n];
long long poslis[n];
vector<long long>lis(n,1e18);
vector<vector<long long> >history(n,{(long long)(1e18)});
long long ans=0;
for(int i=0;i<n;i++) {
long long y;cin>>y;
long long pos=lower_bound(lis.begin(),lis.end(),y)-lis.begin();
history[pos].push_back(y);
poslis[i]=pos;
lis[pos]=y;
ans=max(ans,pos+1);
}
vector<long long>revlis(n,1e18);
for(int i=n-1;i>0;i--) {
long long cur=history[poslis[i]].back();
history[poslis[i]].pop_back();
lis[poslis[i]]=history[poslis[i]].back();
cur+=x;
cur=-cur;
long long pos=lower_bound(revlis.begin(),revlis.end(),cur)-revlis.begin();
revlis[pos]=cur;
cur=-cur;
long long pos1=lower_bound(lis.begin(),lis.end(),cur)-lis.begin();
ans=max(ans,pos1+pos+1);
}
cout<<ans<<endl;
return 0;
}
Compilation message
glo.cpp: In function 'int main()':
glo.cpp:6:15: warning: unused variable 'a' [-Wunused-variable]
6 | long long a[n];
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
292 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
292 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
300 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
216 KB |
Output is correct |
17 |
Correct |
1 ms |
296 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
292 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
300 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
216 KB |
Output is correct |
17 |
Correct |
1 ms |
296 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
122 ms |
20372 KB |
Output is correct |
2 |
Correct |
132 ms |
20328 KB |
Output is correct |
3 |
Correct |
132 ms |
20336 KB |
Output is correct |
4 |
Correct |
127 ms |
20344 KB |
Output is correct |
5 |
Correct |
103 ms |
18100 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
39 ms |
5296 KB |
Output is correct |
2 |
Correct |
30 ms |
5280 KB |
Output is correct |
3 |
Correct |
31 ms |
5360 KB |
Output is correct |
4 |
Correct |
23 ms |
4852 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
25 ms |
4912 KB |
Output is correct |
7 |
Correct |
37 ms |
5128 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
59 ms |
9996 KB |
Output is correct |
2 |
Correct |
59 ms |
10036 KB |
Output is correct |
3 |
Correct |
112 ms |
20316 KB |
Output is correct |
4 |
Correct |
106 ms |
18008 KB |
Output is correct |
5 |
Correct |
51 ms |
9428 KB |
Output is correct |
6 |
Correct |
86 ms |
17140 KB |
Output is correct |
7 |
Correct |
103 ms |
17928 KB |
Output is correct |
8 |
Correct |
53 ms |
10060 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
292 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
300 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
216 KB |
Output is correct |
17 |
Correct |
1 ms |
296 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
122 ms |
20372 KB |
Output is correct |
28 |
Correct |
132 ms |
20328 KB |
Output is correct |
29 |
Correct |
132 ms |
20336 KB |
Output is correct |
30 |
Correct |
127 ms |
20344 KB |
Output is correct |
31 |
Correct |
103 ms |
18100 KB |
Output is correct |
32 |
Correct |
39 ms |
5296 KB |
Output is correct |
33 |
Correct |
30 ms |
5280 KB |
Output is correct |
34 |
Correct |
31 ms |
5360 KB |
Output is correct |
35 |
Correct |
23 ms |
4852 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
25 ms |
4912 KB |
Output is correct |
38 |
Correct |
37 ms |
5128 KB |
Output is correct |
39 |
Correct |
59 ms |
9996 KB |
Output is correct |
40 |
Correct |
59 ms |
10036 KB |
Output is correct |
41 |
Correct |
112 ms |
20316 KB |
Output is correct |
42 |
Correct |
106 ms |
18008 KB |
Output is correct |
43 |
Correct |
51 ms |
9428 KB |
Output is correct |
44 |
Correct |
86 ms |
17140 KB |
Output is correct |
45 |
Correct |
103 ms |
17928 KB |
Output is correct |
46 |
Correct |
53 ms |
10060 KB |
Output is correct |
47 |
Correct |
63 ms |
10088 KB |
Output is correct |
48 |
Correct |
60 ms |
10136 KB |
Output is correct |
49 |
Correct |
125 ms |
20428 KB |
Output is correct |
50 |
Correct |
92 ms |
18136 KB |
Output is correct |
51 |
Correct |
72 ms |
13652 KB |
Output is correct |
52 |
Correct |
119 ms |
18768 KB |
Output is correct |
53 |
Correct |
87 ms |
18088 KB |
Output is correct |
54 |
Correct |
138 ms |
18856 KB |
Output is correct |
55 |
Correct |
113 ms |
20080 KB |
Output is correct |