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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. using ll = long long;
  5. const ll N = 18;
  6.  
  7. #define rep(i, l, r) for(ll i = l; i <= r; i++)
  8.  
  9. ll T, K;
  10. ll h[30];
  11.  
  12. bool check(ll H){
  13.     ll cnt = 0;
  14.     rep(i, 1, N) cnt += 2 * min(h[i], H);
  15.     return cnt <= K;
  16. }
  17.  
  18. int main() {
  19.     cin >> T;
  20.     while(T--){
  21.         cin >> K;
  22.         rep(i, 1, N) cin >> h[i];
  23.  
  24.         ll l = 0, r = 1e12;
  25.         while( l < r ){
  26.             ll mid = (l+r+1) >> 1;
  27.  
  28.             if( check(mid) ){
  29.                 l = mid;
  30.             }
  31.             else r = mid - 1;
  32.         }
  33.  
  34.         cout << l << '\n';
  35.     }
  36.  
  37.     return 0;
  38. }
Success #stdin #stdout 0s 5308KB
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https://ideone.com/y8qdsL
language:
C++14 (gcc 8.3)
created:
13 days ago
visibility:
public

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