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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.  int n, i = 2, f1 = 0, f2 = 1, cur;
  6.   cin >> n;
  7.  
  8.   while (i <= n)
  9.   {
  10.     cur = f1 + f2;
  11.     f1 = f2;
  12.     f2 = cur;
  13.     i++;
  14.   }
  15.   if (n<=1)
  16.     cout<<n;
  17.   else
  18.     cout << cur;
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/EMOimP
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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