#include <bits/stdc++.h>
using namespace std;
#define MAXN 200001
int n,m;
int a[MAXN];
vector<int> kompresija;
int seg[MAXN*4];
void update(int node,int l,int r,int pos,int val)
{
if (l==r) seg[node]=max(seg[node],val);
else
{
int mid=(l+r)/2;
if (pos<=mid) update(2*node,l,mid,pos,val);
else update(2*node+1,mid+1,r,pos,val);
seg[node]=max(seg[2*node],seg[2*node+1]);
}
}
int query(int node,int l,int r,int aa,int bb)
{
if (aa>bb) return -INT_MAX;
if (l==aa and r==bb) return seg[node];
int mid=(l+r)/2;
return max(query(2*node,l,mid,aa,min(bb,mid)),query(2*node+1,mid+1,r,max(aa,mid+1),bb));
}
int main()
{
cin>>n>>m;
for (int i=1;i<=n;i++) cin>>a[i];
for (int i=1;i<=n;i++) a[i]+=m*(n-i);
for (int i=1;i<=n;i++) kompresija.push_back(a[i]);
sort(kompresija.begin(),kompresija.end());
kompresija.erase(unique(kompresija.begin(),kompresija.end()),kompresija.end());
for (int i=1;i<=n;i++) a[i]=lower_bound(kompresija.begin(),kompresija.end(),a[i])-kompresija.begin();
int ans=0;
for (int i=1;i<=n;i++)
{
int sol=query(1,0,kompresija.size()-1,a[i],kompresija.size()-1);
ans=max(ans,sol+1);
update(1,0,kompresija.size()-1,a[i],sol+1);
}
cout<<ans<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |