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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     const long MODn = 1000000033LL;
  6.     int d;
  7.     cin >> d;
  8.     long sum = 0;
  9.  
  10.     long pot_2 = 1;
  11.     for (int i = 1; i <= d; i++) {
  12.         pot_2 = (pot_2 * 2) % MODn;
  13.         long term = (i % MODn) * pot_2 % MODn;
  14.         sum = (sum + term) % MODn;
  15.     }
  16.     cout << (2 * sum) % MODn << "\n";
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5320KB
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https://ideone.com/94oP4X
language:
C++ (gcc 8.3)
created:
7 hours ago
visibility:
public

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