Submission #833704

#	Time	Username	Problem	Language	Result	Execution time	Memory
833704		Trumling	Radio Towers (IOI22_towers)	C++17	11 / 100	4075 ms	3168 KiB

towers

#include "towers.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;

#define F first
#define S second
#define all(x) x.begin(),x.end()
typedef long long ll;
#define pb push_back
#define INF 9999999999999999
ll n;
vector<ll>h;
void init(int N, vector<int> H) 
{
  n=N;
  for(int i=0;i<N;i++)
    h.pb(H[i]);
    
}

int max_towers(int L, int R, int D) 
{
  vector<pair<ll,ll>>v(n);

    for(int i=L;i<=R;i++)
      v[i]={1,h[i]};

    for(int i=L;i<=R;i++)
    {
      ll maxi=h[i];
      for(int j=i-1;j>=L;j--)
      {
        maxi=max(maxi,h[j]);

        if(maxi-D>=h[j] && maxi-D>=h[i])
        {
          if(v[i].F<v[j].F+1)
            v[i]={v[j].F+1,max(h[i],v[j].S)};
          else if(v[i].F==v[j].F+1)
            v[i].S=min(v[i].S,max(v[j].S,h[i]));
          

        }
      }
    }

    ll maxi=0;
    for(int i=0;i<n;i++)
    maxi=max(maxi,v[i].F);


    return maxi;

      
}

• Subtask 1: 0 / 4
• Subtask 2: 11 / 11
• Subtask 3: 0 / 12
• Subtask 4: 0 / 14
• Subtask 5: 0 / 17
• Subtask 6: 0 / 19
• Subtask 7: 0 / 23