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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4.  
  5. void solve()
  6. {
  7.     int n; cin >> n;
  8.     vector<int> v(n);
  9.     ll sum = 0, product = 1;
  10.     for (auto&i:v)
  11.     {
  12.         cin >> i;
  13.         sum += i;
  14.         product *= i;
  15.     }
  16.     // 4 + x = 3x => 4 = 3x-x ==> 4 = 2x == > x = 4/2
  17.     for (auto&i:v)
  18.     {
  19.         ll s = sum - i;
  20.         ll p = product / i;
  21.         double sd = s, pd = p;
  22.         double xd = sd/(pd-1);
  23.         ll x = s/(p-1);
  24.         if (x == xd)
  25.         {
  26.             if (s+x == p*x && x != i)
  27.             {
  28.                 cout << "Yes";
  29.                 return;
  30.             }
  31.         }
  32.     }
  33.     cout << "No";
  34. }
  35.  
  36. int main()
  37. {
  38. #ifndef ONLINE_JUDGE
  39.     freopen("input.txt", "r", stdin);
  40.     freopen("output.txt", "w", stdout);
  41.     freopen("Errors.txt", "w", stderr);
  42. #endif
  43.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  44.     int t = 1;
  45.     // cin >> t;
  46.     while (t--)
  47.     {
  48.         solve();
  49.         if (t) cout << '\n';
  50.     }
  51.     cout << '\n';
  52.     return 0;
  53. }
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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No
https://ideone.com/AY8iXu
language:
C++14 (gcc 8.3)
created:
21 hours ago
visibility:
public

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