/**
* If you live in imaginary world when your imaginary situation encounter in
* real situation you can't enjoiy it because you have to do pending work.
* {This pending work appeared because you wasted that time for your useless
* imagianry thinking.}
*/
#include<bits/stdc++.h>
using namespace std;
//#define int int64_t
#define all(x) x.begin(),x.end()
#define all1(x) x.rbegin(),x.rend()
#define sz(x) (int32_t)(x.size())
const int N=1e2;
void solve(){
int n,m;
cin>>n>>m;
vector<int> z(n);
for (int &it:z){cin>>it;}
vector<int> dp;
int pref[n];
for (int i=0;i<n;i++){
int pos=lower_bound(all(dp),z[i])-dp.begin();
pref[i]=pos+1;
if (pos==sz(dp)){
dp.push_back(z[i]);
}
else{
dp[pos]=z[i];
}
}
dp.clear();
int ans=0;
for (int i=n-1;~i;i--){
int pos=lower_bound(all(dp),-z[i]+m)-dp.begin();
ans=max(ans,pref[i]+pos);
pos=lower_bound(all(dp),-z[i])-dp.begin();
if (pos==sz(dp)){
dp.push_back(-z[i]);
}
else{
dp[pos]=-z[i];
}
}
cout<<ans;
}
int32_t main(){
ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
int tq=1;
//cin>>tq;
for (;tq;tq--){solve();}
}
//is a bruteforce possible?
//think greedier, make more assumptions
// if we you find solution using loop to decrease complexity use bs
//stuck for more than 5 minutes? move on
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
1 ms |
204 KB |
Output is correct |
23 |
Correct |
1 ms |
204 KB |
Output is correct |
24 |
Correct |
0 ms |
204 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
45 ms |
1868 KB |
Output is correct |
2 |
Correct |
45 ms |
1888 KB |
Output is correct |
3 |
Correct |
44 ms |
1876 KB |
Output is correct |
4 |
Correct |
46 ms |
1860 KB |
Output is correct |
5 |
Correct |
26 ms |
2516 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
14 ms |
588 KB |
Output is correct |
2 |
Correct |
12 ms |
588 KB |
Output is correct |
3 |
Correct |
14 ms |
652 KB |
Output is correct |
4 |
Correct |
6 ms |
844 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
6 ms |
844 KB |
Output is correct |
7 |
Correct |
9 ms |
588 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
19 ms |
1100 KB |
Output is correct |
2 |
Correct |
20 ms |
1100 KB |
Output is correct |
3 |
Correct |
42 ms |
1876 KB |
Output is correct |
4 |
Correct |
25 ms |
2512 KB |
Output is correct |
5 |
Correct |
12 ms |
1484 KB |
Output is correct |
6 |
Correct |
22 ms |
2384 KB |
Output is correct |
7 |
Correct |
27 ms |
2384 KB |
Output is correct |
8 |
Correct |
16 ms |
1100 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
1 ms |
204 KB |
Output is correct |
23 |
Correct |
1 ms |
204 KB |
Output is correct |
24 |
Correct |
0 ms |
204 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
27 |
Correct |
45 ms |
1868 KB |
Output is correct |
28 |
Correct |
45 ms |
1888 KB |
Output is correct |
29 |
Correct |
44 ms |
1876 KB |
Output is correct |
30 |
Correct |
46 ms |
1860 KB |
Output is correct |
31 |
Correct |
26 ms |
2516 KB |
Output is correct |
32 |
Correct |
14 ms |
588 KB |
Output is correct |
33 |
Correct |
12 ms |
588 KB |
Output is correct |
34 |
Correct |
14 ms |
652 KB |
Output is correct |
35 |
Correct |
6 ms |
844 KB |
Output is correct |
36 |
Correct |
0 ms |
204 KB |
Output is correct |
37 |
Correct |
6 ms |
844 KB |
Output is correct |
38 |
Correct |
9 ms |
588 KB |
Output is correct |
39 |
Correct |
19 ms |
1100 KB |
Output is correct |
40 |
Correct |
20 ms |
1100 KB |
Output is correct |
41 |
Correct |
42 ms |
1876 KB |
Output is correct |
42 |
Correct |
25 ms |
2512 KB |
Output is correct |
43 |
Correct |
12 ms |
1484 KB |
Output is correct |
44 |
Correct |
22 ms |
2384 KB |
Output is correct |
45 |
Correct |
27 ms |
2384 KB |
Output is correct |
46 |
Correct |
16 ms |
1100 KB |
Output is correct |
47 |
Correct |
21 ms |
1100 KB |
Output is correct |
48 |
Correct |
22 ms |
1104 KB |
Output is correct |
49 |
Correct |
45 ms |
1876 KB |
Output is correct |
50 |
Correct |
26 ms |
2516 KB |
Output is correct |
51 |
Correct |
23 ms |
2072 KB |
Output is correct |
52 |
Correct |
25 ms |
2520 KB |
Output is correct |
53 |
Correct |
21 ms |
2520 KB |
Output is correct |
54 |
Correct |
29 ms |
2640 KB |
Output is correct |
55 |
Correct |
35 ms |
1876 KB |
Output is correct |