fork download
copy 
  1. #include <bits/stdc++.h>
  2. #define VuDucNam ios_base::sync_with_stdio(false);
  3. #define Lop9a6 cin.tie(NULL);
  4. #define THCSPhamVanDong cout.tie(NULL);
  5. #define ll long long
  6. #define el cout << '\n'
  7. #define sz(a) (ll) a.size()
  8. #define all(a) a.begin(), a.end()
  9. #define fi first
  10. #define se second
  11. #define fill(a, x) memset(a, x, sizeof(a))
  12. #define file(name)                         \
  13.     if (fopen(name ".inp", "r"))           \
  14.     {                                      \
  15.         freopen(name ".inp", "r", stdin);  \
  16.         freopen(name ".out", "w", stdout); \
  17.     }
  18. #define TIME (1.0 * clock() / CLOCKS_PER_SEC)
  19. #define RUNTIME cerr << "\nRuntime: " << TIME << "s.\n"
  20.  
  21. using namespace std;
  22.  
  23. const int N5 = 1e5 + 5;
  24. const ll MOD = 1e9 + 7;
  25. const ll inf = LLONG_MAX;
  26.  
  27. int n;
  28. ll s,a[N5];
  29.  
  30. bool check(ll m)
  31. {
  32.     ll ans=0;
  33.     for(int i=1;i<=n;++i)
  34.         if(a[i]>=m)
  35.             ans+=a[i]-m;
  36.     return (ans>=s);
  37. }
  38.  
  39. ll tknp()
  40. {
  41.     ll l=0,r=*max_element(a+1,a+n+1);
  42.     ll ans=0;
  43.     while(l<=r){
  44.         ll m=(l+r)/2;
  45.         if(check(m)){
  46.             ans=m;
  47.             l=m+1;
  48.         }else r=m-1;
  49.     }
  50.     return ans;
  51. }
  52.  
  53. void solve()
  54. {
  55.     cin >> n >> s;
  56.     for(int i=1;i<=n;++i)
  57.         cin >> a[i];
  58.     cout << tknp();
  59.     el;
  60. }
  61.  
  62. int main()
  63. {
  64.     VuDucNam Lop9a6 THCSPhamVanDong
  65.     // file();
  66.     solve();
  67.     RUNTIME;
  68.     return 0;
  69. }
Success #stdin #stdout #stderr 0.01s 5280KB
comments (?)
stdin
copy 
4 10
5 3 7 8
stdout
copy 
3
stderr
copy 
Runtime: 0.005423s.
https://ideone.com/TBzftK
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!