Submission #596667

#	Time	Username	Problem	Language	Result	Execution time	Memory
596667		DanerZein	Financial Report (JOI21_financial)	C++14	0 / 100	361 ms	398756 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,ll> ii;
const int MAX_N=3e5+10;
vector<ll> x;
ll val[7010];
int n,d;
int dp[7010][7010];

int report(int id,ll ma){
  if(dp[id][ma]!=-1) return dp[id][ma];
  if(id==n) return 0;
  int r;
  if(id==0) r=n;
  else r=min(n,id+d);
  int ans=0;
  for(int i=id+1;i<=r;i++){
    ll nma=max(ma,val[i]);
    bool sw=(val[i]>ma);
    ans=max(ans,report(i,nma)+sw);
  }
  return dp[id][ma]=ans;
}

int main(){
  memset(dp,-1,sizeof dp);
  cin>>n>>d;
  x.push_back(-1);
  set<int> comp;
  for(int i=0;i<n;i++){
    ll a; cin>>a;
    comp.insert(a);
    x.push_back(a);
  }
  map<int,int> m;
  int c=0;
  for(auto &v:comp){
    m[v]=c;
    c++;
  }
  for(int i=1;i<=n;i++){
    val[i]=m[x[i]];
  }
  cout<<report(0,-1)<<endl;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 14
• Subtask 3: 0 / 20
• Subtask 4: 0 / 12
• Subtask 5: 0 / 5
• Subtask 6: 0 / 35