Morass

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Mar 4th, 2016
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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7. unsigned long long int i,x,a,n,c,ans,temp;
  8.  
  9. while(1)
  10. {
  11. cin>>x>>a>>n>>c;
  12. if(x==0&&a==0&&n==0&&c==0) break;
  13. ans=0;
  14. ans=x;
  15. for(i=0;i<n;++i)
  16. --ans,ans+=c,ans*=a,ans%=c;
  17. ans%=c;
  18. // temp=(x-1)%c;
  19. // for(i=0;i<n;i++)
  20. // {
  21. // ans+=a*temp;
  22. // temp=(ans-1)%c;
  23. // ans%=c;
  24. // }
  25. cout<<ans<<endl;
  26. }
  27.  
  28. return 0;
  29.  
  30. }
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