fibonacci series program in C++ without recursion.

  1. #include <iostream>  
  2. using namespace std;  
  3. int main() {  
  4.   int n1=0,n2=1,n3,i,number;    
  5.  cout<<"Enter the number of elements: ";    
  6.  cin>>number;    
  7.  cout<<n1<<" "<<n2<<" "//printing 0 and 1    
  8.  for(i=2;i<number;++i) //loop starts from 2 because 0 and 1 are already printed    
  9.  {    
  10.   n3=n1+n2;    
  11.   cout<<n3<<" ";    
  12.   n1=n2;    
  13.   n2=n3;    
  14.  }    
  15.    return 0;  
  16.    }  

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