#include<bits/stdc++.h>
using namespace std;
using ll = long long;
void solve(){
int n,k;
cin>>n>>k;
vector<int>v(n);
for(int i = 0;i<n;i++){
cin>>v[i];
}
vector<int>dp(n+1,1e9);
vector<int>pref(n);
int ans = 0;
for(int i = 0;i<n;i++){
auto it = lower_bound(dp.begin(),dp.end(),v[i])-dp.begin();
dp[it]=v[i];
pref[i]=it+1;
ans = max(ans,pref[i]);
}
dp = vector<int>(n+1,1e9);
for(int i = n-1;i>=0;i--){
auto it = lower_bound(dp.begin(), dp.end(), -v[i] + k) - dp.begin();
ans = max(ans,int(it+pref[i]));
it = lower_bound(dp.begin(),dp.end(),-v[i])-dp.begin();
dp[it]=-v[i];
}
cout<<ans<<endl;
}
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(nullptr);
// int t;cin>>t;while(t--)
solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
456 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
456 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
456 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
48 ms |
5328 KB |
Output is correct |
2 |
Correct |
48 ms |
5456 KB |
Output is correct |
3 |
Correct |
48 ms |
5456 KB |
Output is correct |
4 |
Correct |
48 ms |
5456 KB |
Output is correct |
5 |
Correct |
34 ms |
4692 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
1624 KB |
Output is correct |
2 |
Correct |
11 ms |
1628 KB |
Output is correct |
3 |
Correct |
11 ms |
1544 KB |
Output is correct |
4 |
Correct |
9 ms |
1492 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
9 ms |
1456 KB |
Output is correct |
7 |
Correct |
10 ms |
1756 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
20 ms |
2908 KB |
Output is correct |
2 |
Correct |
20 ms |
2908 KB |
Output is correct |
3 |
Correct |
41 ms |
5452 KB |
Output is correct |
4 |
Correct |
37 ms |
4688 KB |
Output is correct |
5 |
Correct |
18 ms |
2396 KB |
Output is correct |
6 |
Correct |
28 ms |
4532 KB |
Output is correct |
7 |
Correct |
31 ms |
5212 KB |
Output is correct |
8 |
Correct |
19 ms |
3012 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
456 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
48 ms |
5328 KB |
Output is correct |
28 |
Correct |
48 ms |
5456 KB |
Output is correct |
29 |
Correct |
48 ms |
5456 KB |
Output is correct |
30 |
Correct |
48 ms |
5456 KB |
Output is correct |
31 |
Correct |
34 ms |
4692 KB |
Output is correct |
32 |
Correct |
11 ms |
1624 KB |
Output is correct |
33 |
Correct |
11 ms |
1628 KB |
Output is correct |
34 |
Correct |
11 ms |
1544 KB |
Output is correct |
35 |
Correct |
9 ms |
1492 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
9 ms |
1456 KB |
Output is correct |
38 |
Correct |
10 ms |
1756 KB |
Output is correct |
39 |
Correct |
20 ms |
2908 KB |
Output is correct |
40 |
Correct |
20 ms |
2908 KB |
Output is correct |
41 |
Correct |
41 ms |
5452 KB |
Output is correct |
42 |
Correct |
37 ms |
4688 KB |
Output is correct |
43 |
Correct |
18 ms |
2396 KB |
Output is correct |
44 |
Correct |
28 ms |
4532 KB |
Output is correct |
45 |
Correct |
31 ms |
5212 KB |
Output is correct |
46 |
Correct |
19 ms |
3012 KB |
Output is correct |
47 |
Correct |
23 ms |
2908 KB |
Output is correct |
48 |
Correct |
24 ms |
2796 KB |
Output is correct |
49 |
Correct |
48 ms |
5324 KB |
Output is correct |
50 |
Correct |
36 ms |
4488 KB |
Output is correct |
51 |
Correct |
30 ms |
3676 KB |
Output is correct |
52 |
Correct |
36 ms |
4700 KB |
Output is correct |
53 |
Correct |
29 ms |
4688 KB |
Output is correct |
54 |
Correct |
32 ms |
5456 KB |
Output is correct |
55 |
Correct |
39 ms |
5524 KB |
Output is correct |