Fibonacci Series Using For Loop in C++

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Q. Write a C++ program for Fibonacci Series using for loop.

#include <iostream>       
using namespace std;
  
int main()
{     
    int n1=0,n2=1,n3,n;    
    cout << "Enter the number:";    
    cin >> n;    
    cout << "Fibonacci series terms are: " << n1 << " " << n2;
    for(int i=2; i<n; i++)  
    {   
    	n3=n1+n2;    
        n1=n2;    
        n2=n3; 
        cout << " " << n3  ;
    }
    return 0;    
}
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Q. Write an algorithm to Fibonacci Series using for loop.

1. Start
2. Initialize:
- Set `n1 = 0` (first term)
- Set `n2 = 1` (second term)
3. Read the input number `n` (number of terms to print).
4. Print the first two terms: `n1` and `n2`.
5. Loop from `i = 2` to `i < n`:
a. Calculate `n3 = n1 + n2` (next term in the series).
b. Print `n3`.
c. Update `n1 = n2`.
d. Update `n2 = n3`.
6. End
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