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Write a C# function to print nth number in Fibonacci series?
Set the following, if the nth number is let’s say num −
int n = num- 1; int[] val = new int[n + 1];
Then set the default Fibonacci numbers on the first and second position −
val[0]= 0; val[1]= 1;
Loop through i=2 to i<=n and find the Fibonacci numbers −
for (int i = 2; i <= n;i++) { val[i] = val[i - 2] + val[i - 1]; }
The following is the complete code −
Example
using System; public class Demo { public static void Main(string[] args) { Demo g = new Demo(); int a = g.displayFibonacci(7); Console.WriteLine(a); } public int displayFibonacci(int num) { int n = num- 1; int[] val = new int[n + 1]; val[0]= 0; val[1]= 1; for (int i = 2; i <= n;i++) { val[i] = val[i - 2] + val[i - 1]; } return val[n]; } }
Output
8
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