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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main(){
  4.     int n;cin>>n;
  5.     vector<int>a(n),b(n);
  6.     for(int i=0;i<n;i++)cin>>a[i];
  7.     for(int i=0;i<n;i++)cin>>b[i];
  8.     sort(a.begin(),a.end());
  9.     sort(b.begin(),b.end());
  10.     int ans=0;
  11.     for(int i=0;i<n;i++){
  12.         ans+= a[i]*b[n-i-1];
  13.     }
  14.     cout<<ans<<endl;
  15. }
Success #stdin #stdout 0.01s 5316KB
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https://ideone.com/iJu29v
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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