Algorithms Quiz | Sudo Placement [1.5] | Question 7

Below is the incomplete code for printing Fibonacci sequence. Which statement could be inserted at "code to be inserted" statement, such that code will run perfectly?

// CPP Program to print Fibonacci sequence
// using 2 variables
#include <iostream>
using std::cout;
void fib(int n)
{
    int a = 0, b = 1;
    if (n >= 0)
        cout << a << " ";
    if (n >= 1)
        cout << b << " ";
    for (int i = 2; i <= n; i++) {
        cout << a + b << " ";
        // code to be inserted here

    }
}

// Driver code
int main()
{
    fib(9);
    return 0;
}

(A) b = a – b; b = b + a;
(B) b = a + b; a = a – b;

(C) b = a + b; a = b – a;
(D) None of these.


Answer: (C)

Explanation: Refer : https://www.geeksforgeeks.org/print-fibonacci-sequence-using-2-variables/

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