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Oct 9th, 2015
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C++ 0.52 KB | None | 0 0
  1. #include <iostream>
  2. #include <iomanip>
  3.  
  4. long double fib(int n)
  5. {
  6.     if (n <= 0) return 0;
  7.     long double fib1 = 0;
  8.     long double fib2 = 1;
  9.     long double sum = 0;
  10.     for(int i = 0; i < (n-1); i++)
  11.     {
  12.         sum = fib1 + fib2;
  13.         fib1 = fib2;
  14.         fib2 = sum;
  15.     }
  16.     return sum;
  17. }
  18.  
  19. int main()
  20. {
  21.     std::cout << std::setprecision(10000);
  22.     int n = 100000;
  23.     //char wynik[n/4]; //maksymalna ilość cyfr w n-tym wyrazie ciągu to n/4
  24.  
  25.  
  26.     std::cout << fib(a);
  27.  
  28.  
  29.     return 0;
  30. }
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