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  1. #include <iostream>
  2.  
  3. using std::cout;
  4. using std::cin;
  5. using std::endl;
  6. using std::cerr;
  7.  
  8. #include <stdexcept>
  9. using std::out_of_range;
  10.  
  11. #include <limits>
  12.  
  13. class OUTofRage : public out_of_range
  14. {
  15.    public:
  16.       OUTofRage()
  17.           : out_of_range("Out Of Range\n") {}
  18. } ;
  19.  
  20. long long fibonacci(long long target, long long numberOne, long long numberTwo);
  21.  
  22. int main() {
  23. 	try {
  24.        cout << endl << fibonacci(91, 0, 1) << endl << endl;
  25. 	}
  26. 	catch( std::exception &ex ) {
  27. 		std::cout << "error:" << ex.what() << std::endl;
  28. 	}
  29.     return 0;
  30. }
  31.  
  32. long long fibonacci(long long target, long long numberOne, long long numberTwo)
  33. {
  34.     if(std::numeric_limits<decltype(numberOne)>::max() - numberOne < numberTwo) 
  35.          throw OUTofRage();
  36.  
  37.     if(target == 0) 
  38.         return numberOne + numberTwo;
  39.  
  40.     return fibonacci(target-1, numberTwo, numberOne + numberTwo);
  41. }
Success #stdin #stdout 0.01s 5500KB
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stdin
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Standard input is empty
stdout
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error:Out Of Range
https://ideone.com/oV7L3t
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
secret

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