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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. #define ld long double
  4. #define nl "\n"
  5. #define OO 0x3f3f3f3f
  6. using namespace std;
  7.  
  8. void ta2to2a()
  9. {
  10.     ios_base::sync_with_stdio(false), cout.tie(nullptr), cin.tie(nullptr);
  11. #ifndef ONLINE_JUDGE
  12.     freopen("input.txt", "r", stdin);
  13.     freopen("output.txt", "w", stdout);
  14. #endif
  15. }
  16. ll n;
  17. vector<ll> factiorals(16);
  18. ll binary(ll x)
  19. {
  20.     return __builtin_popcountll(x);
  21. }
  22. ll powerfulNumbers(int i, ll sum, ll count)
  23. {
  24.     if (i == 16 || factiorals[i] > n)
  25.     {
  26.         return (binary(n - sum) + count);
  27.     }
  28.     return min(powerfulNumbers(i + 1, sum, count), powerfulNumbers(i + 1, sum + factiorals[i], count + 1));
  29. }
  30. void solve()
  31. {
  32.     cin >> n;
  33.     cout << powerfulNumbers(3, 0, 0) << nl;
  34. }
  35. int main()
  36. {
  37.     ta2to2a();
  38.     int t = 1;
  39.     cin >> t;
  40.     ll x = 1LL;
  41.     for (int i = 1; i <= 15; i++)
  42.     {
  43.         x *= i;
  44.         factiorals[i] = x;
  45.     }
  46.     while (t--)
  47.     {
  48.         solve();
  49.     }
  50. }
Success #stdin #stdout 0s 5312KB
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https://ideone.com/gBTGuh
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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