Submission #538671

#	Time	Username	Problem	Language	Result	Execution time	Memory
538671		Benmath	Let's Win the Election (JOI22_ho_t3)	C++14	10 / 100	6 ms	304 KiB

Main

#include<bits/stdc++.h>
using namespace std;
int main(){
 
int n,k;
cin>>n>>k;
double a[n],b[n];
vector<pair<double,double>>v;
for(int i=0;i<n;i++){
   cin>>a[i]>>b[i];
   if(b[i]==-1){
      b[i]=1e18;
   }
   v.push_back({b[i],a[i]});
   
   
}
sort(v.begin(),v.end());
double sum=0;
double mini=1e18;
int t1=0;
for(int i=0;i<k;i++){
   //cout<<mini<<endl;
  double res=sum;
   vector<double>v1;
   for(int j=i;j<n;j++){
      v1.push_back(v[j].second);
   }
   sort(v1.begin(),v1.end());
   int ro=(k-i); double i1=i+1;
   for(int j=0;j<ro;j++){
   res=res+v1[j]/i1;
   }
  
  if(res<mini){
     mini=res;
  }

  if(v[i].first==1e18){
     t1++;
     break;
  }
   sum=sum+v[i].first/i1;
   
}
if(sum<mini and t1==0){
   mini=sum;
}
cout<<mini<<endl;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 33
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23