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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. long long a,b,c;
  4. long long nhan(long long a, long long b, long long c)
  5. {
  6.     if(b==0ll) return 0ll;
  7.     long long t = nhan(a,b/2,c);
  8.     if(b%2==0)
  9.     {
  10.         return (t+t)%c;
  11.     }
  12.     else
  13.     {
  14.         return ((t+t)%c + a%c)%c;
  15.     }
  16. }
  17. long long mu (long long a, long long b, long long c)
  18. {
  19.     if(b==0) return 1ll;
  20.     long long t= mu(a,b/2,c);
  21.     if(b%2==0)
  22.     {
  23.         return nhan(t,t,c);
  24.     }
  25.     else
  26.     {
  27.         return nhan(nhan(t,t,c),a,c);
  28.     }
  29. }
  30. int main()
  31. {
  32.     ios_base::sync_with_stdio(0);
  33.     cin.tie(0);
  34.     cin >> a >> b >> c;
  35.     cout << mu(a,b,c);
  36. }
Success #stdin #stdout 0s 5320KB
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https://ideone.com/5BT5QO
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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