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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define all(x) x.begin(), x.end()
  4. #define pb push_back
  5. typedef long long ll ;
  6.  set < ll > st ;
  7. void make_sums (vector < ll > &a  , ll index  , ll sum , ll maxi  , ll total  ) {
  8.     if (index == maxi ) {
  9.         st.insert(abs(total - 2 * sum)  ) ;
  10.         return ;
  11.     }
  12.     make_sums (a  , index+1 , sum+a[index] , maxi  , total  );
  13.     make_sums (a  , index+1 , sum , maxi, total  );
  14.  
  15. }
  16.  
  17.  
  18. void solve() {
  19.     ll n ;
  20.  
  21.     cin >> n  ;
  22.     vector<ll> a(n) ;
  23.     ll total  = 0 ;
  24.     for (ll i = 0 ; i < n ; i++) {
  25.         cin >> a[i] ;
  26.         total += a[i] ;
  27.     }
  28.     make_sums (a, 0, 0, n , total) ;
  29.  
  30.     cout <<*st.begin()<< endl ;
  31.  
  32.  
  33.  
  34.  
  35.  
  36. }
  37. int main() {
  38.     ll t ;
  39.  
  40.    t=1;
  41.    ///cin >> t ;
  42.     while (t-- ) {
  43.         solve();
  44.  
  45.  
  46.     }
  47.  
  48.  
  49.  
  50.     return 0;
  51. }
Success #stdin #stdout 0s 5276KB
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https://ideone.com/WptyEH
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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