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  1. #include <iostream>
  2.  
  3. int a(int n, int a0 = 0, int a1 = 1)
  4. {
  5.     if(n <= 0)
  6.         return a0;
  7.     return a(n-1, a1, a0+a1);
  8. }
  9.  
  10. int main()
  11. {
  12.     using namespace std;
  13.     for(int i = 0; i < 10; ++i)
  14.         cout << "a(" << i << ") = " << a(i) << endl;
  15.     return 0;
  16. }
  17.  
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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a(0) = 0
a(1) = 1
a(2) = 1
a(3) = 2
a(4) = 3
a(5) = 5
a(6) = 8
a(7) = 13
a(8) = 21
a(9) = 34
https://ideone.com/RDHEuB
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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