Submission #1258463

#TimeUsernameProblemLanguageResultExecution timeMemory
1258463medmdgFestival (IOI25_festival)C++20
27 / 100
100 ms22696 KiB
#include "festival.h"
#include<bits/stdc++.h>
#define mk(a,b) make_pair(a,b)
#define pb(a) push_back(a)
using namespace std;
typedef long long ll;
ll n;
vector<pair<ll,int>> t[4];
set<pair<ll,ll>> s;
ll a;
vector<ll> p;
const ll M=1e15;
int getP1(ll a){
  if(a<0)return 0;
  set<pair<ll,ll>>::iterator t=s.lower_bound(mk(a+1,-1));
  if(t==s.begin())return 0;
  t--;
  ll ans= (*t).second;
  return ans;
}
vector<int> sub3(){
  ll ma=getP1(a);
  ll nb=0;
  
  for(int i=0;i<t[1].size();i++){
    a-=t[1][i].first;
    if(a<1e17)
      a*=2;
    if(a<0)break;
    ll nma=getP1(a)+i+1;
    if(nma>ma){
      ma=nma;
      nb=i+1;
    }
  }
  vector<int> ans;
  for(int i=0;i<nb;i++){
    ans.push_back(t[1][i].second);
  }
  for(int i=nb;i<ma;i++){
    ans.push_back(t[0][i-nb].second);
  }
  return ans;
}

ll pick_best(ll a,ll v1,ll v2,ll v3){
  a=min(a,M);
  ll xa=a-2*v1,xb=2*a-3*v2,xc=3*a-4*v3;
  if(v1==-1){
    if(v2==-1)return 2;
    if(v3==-1)return 1;
    if(3*xb>=2*xc)return 1;
    return 2;
  }else if(v2==-1){
    if(v3==-1)return 0;
    if( 3*xa>=xc)return 0;
    return 2;
  }
  else{
    if(v3==-1){
      if(2*xa>=xb) return 0;
      return 1;
    }
  }
  if(2*xa>=xb){
    if( 3*xa>=xc)return 0;
    return 2;
  }
  if(3*xb>=2*xc)return 1;
  return 2;
}
vector<int> sub5(){
  vector<int> ans;
  ll i=0,j=0,k=0;
  while(i<t[1].size()||j<t[2].size()||k<t[3].size()){
    ll v1=-1,v2=-1,v3=-1;
    if(i<t[1].size())  v1=t[1][i].first;
    if(j<t[2].size())  v2=t[2][j].first;
    if(k<t[3].size())  v3=t[3][k].first;
    ll v=pick_best(a,v1,v2,v3);
    if(v==0)ans.pb(t[1][i++].second);
    if(v==1)ans.pb(t[2][j++].second);
    if(v==2)ans.pb(t[3][k++].second);
    a-=p[ans.back()];
    if(a<M)
    a*=(v+2);
  }
  for(int i=0;i<t[0].size();i++)ans.pb(t[0][i].second);
  return ans;
}
vector<int> max_coupons(int A, vector<int> P, vector<int> T) {
  for(int i=0;i<4;i++)t[i].clear();
  for(int i=0;i<T.size();i++){
    t[T[i]-1].push_back(mk(P[i],i));
  }
  for(int i=0;i<4;i++)  sort(t[i].begin(),t[i].end());
  s.clear();
  s.insert(mk(0,0));
  ll ps=0;
  for(int i=0;i<t[0].size();i++){ ps+=t[0][i].first;s.insert(mk(ps,i+1));}
  n=P.size();
  a=A;
  p.clear();
  for(auto x:P)p.push_back(x);
  return sub5();
}
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