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Jan 25th, 2020
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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. int zaokruziBroj(double a)
  7. {
  8. if((a-(int)a)!=0) return trunc(a)+1;
  9. return a;
  10. }
  11.  
  12. int main()
  13. {
  14. double p,q,r, br=0;
  15. long long L, R;
  16.  
  17. cin >> p >> q >> r >> L >> R;
  18.  
  19. for(int i=0;i<=100;i++){
  20. if(zaokruziBroj(i/p)+zaokruziBroj(i/q)+zaokruziBroj(i/r)>i){
  21.  
  22. if(i>=L && i<=R){
  23. br++;
  24. }
  25.  
  26. }
  27. }
  28. cout << R-L-br+1 << endl;
  29. return 0;
  30. }
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