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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. #define endl "\n"
  5. #define fast ios::sync_with_stdio(NULL); cin.tie(0); cout.tie(0);
  6. #define pb push_back
  7. #define yes cout<<"YES"<<endl
  8. #define no cout<<"NO"<<endl
  9. #define F first
  10. #define S second
  11. #define C continue
  12. #define R return
  13. const ll N=5e5+9;
  14. const ll mod=1e9+7;
  15. const ll oo=1e18;
  16. const ll M=1e6+10;
  17. ll T,n,a[N],x,ans;
  18. int main()
  19. {
  20.     fast
  21.     //freopen("input.in","r",stdin) ;
  22.     //freopen("output.txt","w",stdout);
  23.     T=1;
  24.     //cin>>T;
  25.     while(T--)
  26.     {
  27.         cin>>n;
  28.         for(int i=1;i<=n;i++){
  29.             cin>>a[i];
  30.         }
  31.         sort(a+1,a+n+1);
  32.         x=a[(n+1)/2];
  33.         ans=0;
  34.         for(int i=1;i<=n;i++){
  35.             ans+=abs(a[i]-x);
  36.         }
  37.         cout<<ans;
  38.     }
  39.     return 0;
  40. }
  41.  
  42. /*
  43.  
  44.  
  45. */
  46.  
Success #stdin #stdout 0s 5276KB
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https://ideone.com/em1Rd4
language:
C++14 (clang 8.0)
created:
352 days ago
visibility:
secret

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