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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. long long mss(vector<int>& a,vector<int>& b) {
  8.     int n=a.size();
  9.     sort(a.begin(),a.end());
  10.     sort(b.begin(),b.end());
  11.     long long m=0;
  12.     for(int i=0;i<n;++i) {
  13.         m+=(long long)a[i]*b[i];
  14.     }
  15.     return m;
  16. }
  17.  
  18. int main() {
  19.     vector<int> a={1,3,-5};
  20.     vector<int> b={-2,4,1};
  21.     long long r=mss(a,b);
  22.     cout<<r;
  23.     return 0;
  24. }
  25.  
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/2yCIXE
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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