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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. long long solve(long long a,long long b, long long m)
  4. {
  5.     if (b==0) return 1%m;
  6.     else if (b%2==0)
  7.     {
  8.         long long x = solve(a,b/2,m);
  9.         return (x*x)%m;
  10.     }
  11.     else
  12.     {
  13.         return ((a%m)*(solve(a,b-1,m)%m))%m;
  14.     }
  15. }
  16. int main ()
  17. {
  18.     long long a,b,m;
  19.     while(cin>>a>>b>>m)
  20.     {
  21.         cout<<solve(a,b,m)<<endl;
  22.     }
  23.     return 0;
  24. }
  25.  
Success #stdin #stdout 0s 5328KB
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https://ideone.com/eJHnTf
language:
C++14 (gcc 8.3)
created:
3 hours ago
visibility:
public

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