Medium csharp

First 5 Fibonacci numbers

Problem

Print first 5 Fibonacci terms.

Hints

Two variables a,b

Your practice code

Ready — edit the code above and click Run.

Solution

using System;

class Program
{
    static void Main()
    {
        int count = 5, a = 0, b = 1;
        Console.Write(a + " ");
        for (int k = 2; k < count; k++) {
            int c = a + b; Console.Write(c + " "); a = b; b = c;
        }
    }
}

Try solving on your own first, then reveal the official answer.

Explanation

Iterative Fibonacci O(n).

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