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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. ll solve(ll n) {
  5.     if (n <= 2) return 0;
  6.     return (n - 1) / 3 + solve((n + 2) / 3);
  7. }
  8. int main() {
  9.     ios::sync_with_stdio(false);
  10.     cin.tie(nullptr);
  11.     int t;
  12.     cin >> t;
  13.     while (t--) {
  14.         ll n;
  15.         cin >> n;
  16.         cout << solve(n) << "\n";
  17.     }
  18. }
Success #stdin #stdout 0.01s 5328KB
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https://ideone.com/hh57w2
language:
C++14 (gcc 8.3)
created:
10 days ago
visibility:
public

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