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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define LL long long int
  4.  
  5.  
  6. LL pow(LL a, LL b, LL mod) {
  7.     LL x = 1, y = a;
  8.     while(b > 0) {
  9.         if(b%2 == 1) {
  10.             x=(x*y);
  11.             if(x>mod) x%=mod;
  12.         }
  13.         y = (y*y);
  14.         if(y>mod) y%=mod;
  15.         b /= 2;
  16.     }
  17.     return x;
  18. }
  19. int main()
  20. {
  21.     LL A,B,MOD=1000000007;
  22.     cin>>A>>B;
  23.     cout<<pow(A,B,MOD)<<endl;
  24.     return 0;
  25.     }
  26.  
Success #stdin #stdout 0s 15240KB
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https://ideone.com/4wtJUc
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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