Submission #748169

#	Time	Username	Problem	Language	Result	Execution time	Memory
748169		NemanjaSo2005	Council (JOI23_council)	C++17	78 / 100	4067 ms	48156 KiB

council

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int kritv,N,M,K,maks[300005],maska[300005],glasa[300005][25],ukup[25],res[300005],dist[1050005];
map<int,bool> bio;
const int stepen[25]={1,2,4,8,16,32,64,128,256,512,1024,2048,4096,8192,16384,32768,65536,131072,262144,524288,1048576,2097152,4194304,8388608,16777216};
/*
0 - Moze a ne mora za to da ne glasa
1 - Mora da to da ne glasa

Dodavanje - 0 u 1 dodaje 1 cene
Ispitivanje - 1 u 0 dodaje 1 cene
*/
void rek1(int poz,int targ,int tren,int cena){
   if(poz>=K){
      tren+=(targ&(stepen[M]-stepen[K]));
      dist[tren]=min(dist[tren],cena);
      return;
   }
   ///Dodaje 0
   rek1(poz+1,targ,tren,cena);
   ///Dodaje 1
   if((targ&stepen[poz])==0)
      rek1(poz+1,targ,tren+stepen[poz],cena+1);
   else
      rek1(poz+1,targ,tren+stepen[poz],cena);
   return;
}
void dodaj(int x){
   if(bio[x])
      return;
   bio[x]=true;
   rek1(0,(stepen[M]-1)^x,0,0);
   return;
}
void rek2(int poz,int targ,int tren,int cena,int indx){
   if(res[indx]<=cena)
      return;
   if(poz>=M){
      res[indx]=min(res[indx],cena+dist[tren]);
      return;
   }
   /// Dodaje 1
   rek2(poz+1,targ,tren+stepen[poz],cena,indx);
   /// Dodaje 0
   if((targ&stepen[poz])!=0)
      rek2(poz+1,targ,tren,cena+1,indx);
   else
      rek2(poz+1,targ,tren,cena,indx);
   return;
}
void najblizi(int indx,int sta){
   rek2(K,sta,sta&(stepen[K]-1),0,indx);
   return;
}
int main(){
    srand(532);
   ios_base::sync_with_stdio(false);
   cin.tie(0);
  cin>>N>>M;
   kritv=N/2;
   K=(M/2);
   for(int i=1;i<=N;i++){
      for(int j=0;j<M;j++)
         cin>>glasa[i][j];
      for(int j=0;j+j<M;j++)
         swap(glasa[i][j],glasa[i][M-1-j]);
      for(int j=0;j<M;j++){
         ukup[j]+=glasa[i][j];
         maska[i]+=stepen[j]*glasa[i][j];
      }
   }
   for(int i=1;i<=N;i++)
      for(int j=0;j<M;j++)
         if(ukup[j]-glasa[i][j]>=kritv)
            maks[i]++;
   for(int i=1;i<=N;i++)
      res[i]=M+1;
   for(int i=0;i<=1050000;i++)
      dist[i]=M+1;

   bio.clear();
   for(int i=2;i<=N;i++){
      dodaj(maska[i-1]);
      int x=0;
      for(int j=0;j<M;j++){
         int kol=ukup[j]-glasa[i][j];
         if(kol==kritv)
            x+=stepen[j];
      }
      najblizi(i,x);
   }

   for(int i=0;i<=1050000;i++)
      dist[i]=M+1;
   bio.clear();
   for(int i=N-1;i>=1;i--){
      dodaj(maska[i+1]);
      int x=0;
      for(int j=0;j<M;j++){
         int kol=ukup[j]-glasa[i][j];
         if(kol==kritv)
            x+=stepen[j];
      }
      najblizi(i,x);
   }
   for(int i=1;i<=N;i++)
      cout<<maks[i]-res[i]<<"\n";
   cout<<"\n";
/*   for(int i=1;i<=N;i++)
      cout<<maks[i]<<" ";
   cout<<"\n";
   for(int i=1;i<=N;i++)
      cout<<res[i]<<" ";
   cout<<"\n";*/
   return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 8 / 8
• Subtask 3: 6 / 6
• Subtask 4: 19 / 19
• Subtask 5: 15 / 15
• Subtask 6: 22 / 22
• Subtask 7: 0 / 22