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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. long long pow1(long long x,long long y)
  5. {
  6. 	if(y ==0)
  7. 	{
  8. 		return 1;
  9. 	}
  10.  
  11. 	if(y ==1)
  12. 	{
  13. 		return x;
  14. 	}
  15.  
  16. 	long long val = pow1(x,y/2);
  17. 	if(y%2 == 0)
  18. 	{
  19. 		return (val*val)%1000000007;
  20. 	}
  21. 	else
  22. 	{
  23. 		return (val*val*x)%1000000007;
  24. 	}
  25. }
  26.  
  27.  
  28. int main() {
  29.  
  30. 	long long n;
  31. 	cin>>n;
  32.  
  33.  
  34. 	cout<<pow1(2,n)%1000000007<<endl;
  35.  
  36.  
  37. 	return 0;
  38. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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1000000
stdout
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235042059
https://ideone.com/9Xtesj
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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