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  1. #include <cmath>
  2. #include <cstdio>
  3. #include <vector>
  4. #include <iostream>
  5. #include <algorithm>
  6. using namespace std;
  7.  
  8.  
  9. int main() {
  10.     long long a, b;
  11.     cin >> a >> b;
  12.     long long ans = 2;
  13.     for (int i = 1; i <= a; i++) {
  14.         ans = (ans * ans) % b;
  15.     }
  16.     cout << ans << endl;
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout 0s 3300KB
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https://ideone.com/MI4uUA
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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