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  1. #include <stdio.h>
  2.  
  3. int foo(int n)
  4. {
  5.     if (n < 30) return 1 << n;
  6.     int re = (1 << 30) % 1000000007;
  7.     for(int i=31; n>i; i++)
  8.     {
  9.         re <<= 1;
  10.         if (re > 1000000007) re -= 1000000007;
  11.     }
  12.     return re;
  13. }
  14.  
  15.  
  16. int main()
  17. {
  18. 	int n;
  19. 	scanf("%d",&n);
  20. 	printf("%d",foo(n));
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 4500KB
comments (?)
stdin 
35
stdout 
179869065
https://ideone.com/0FRcaf
language:
C99 (gcc 8.3)
created:
6 years ago
visibility:
public

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