C++ Program to print fibonacci series using function

What is fibonacci series?

Fibonacci series is a series formed by adding previous two numbers. Suppose you have given first number= 0 and second number=1 then your fibonacci series will be

Program:

 #include <iostream>  
 using namespace std;  
   
 //function to write fibonacci series  
 void fibo(int n)  
 {  
   int n1=0,n2=1,next;  
   
    //loop to calculate and print series  
   for(int i=1;i<=n;i++)  
   {  
     cout<<n1<<" ";  
     next=n1+n2;  
     n1=n2;  
     n2=next;  
   }  
 }  
   
 int main()   
 {   
  int n;  
  cout<<"Enter number of terms: ";  
  cin>>n;  
  fibo(n); //function call  
   return 0;  
 }  

Output:

Enter number of terms: 5

0 1 1 2 3