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fibonacci.cs
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fibonacci.cs
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//Q-1 Write a program to check whether given number is in Fibonacci series or not.
using System;
namespace Lab_18_09_2020
{
class fibonacci
{
static void Main(string[] args)
{
long n1 = 0, n2 = 1, n3 = 0, temp = 0;
int f = 0;
Console.Write("Enter Number to Check: ");
long n = Convert.ToInt32(Console.ReadLine());
temp = n;
for (long i = 0; i <= n; i++)
{
n3 = n1 + n2;
n1 = n2;
n2 = n3;
if (n == n3)
f = 1;
}
if (f == 1)
Console.WriteLine(temp + " is in Fibonacci Series");
else
Console.WriteLine(temp + " is not in Fibonacci Series");
Console.ReadKey();
}
}
}