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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4.  
  5. ll f(vector<ll> a, int objetivo) {
  6.     ll costo = 0;
  7.     for(int i = 0; i < a.size(); i++)
  8.         costo += abs(a[i] - objetivo);
  9.     return costo;
  10. }
  11.  
  12. void task() {
  13.     int n;
  14.     cin >> n;
  15.     vector<ll> a(n);
  16.     for(int i = 0; i < n; i++)
  17.         cin >> a[i];
  18.     ll low = 1, high = 1e9;
  19.     while(high - low > 1) {
  20.         ll mid = (low + high) / 2;
  21.         if(f(a, mid) <= f(a, mid + 1))
  22.             high = mid;
  23.         else 
  24.             low = mid;
  25.     }
  26.     cout << f(a, high) << "\n";
  27. }
  28.  
  29. int main(){
  30.     int t = 1;
  31.     //cin >> t;
  32.     while(t--) {
  33.         task();
  34.     }
  35.     return 0;
  36. }
  37.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/BbW4lh
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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