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  1. #include <iostream>
  2. using namespace std;
  3. long binpow (long a, long n, long m) {
  4. 	if (n == 0)
  5. 		return 1 % m;
  6. 	if (n % 2 == 1)
  7. 		return (binpow (a, n - 1, m) * a) % m;
  8. 	else {
  9. 		return binpow ((a * a) % m, n/2, m);
  10. 	}
  11. }
  12.  
  13. int main() {
  14.     long a, b, m;
  15.     cin >> a >> b >> m;
  16.     cout << binpow (a, b, m);
  17.     return 0;
  18. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/chJZI7
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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