++C

#C

 #include
#include


main()
{
int x1=1,x2=1,x3,n,sum=0;
cout<<"how much object of Fibonacci series want to find?\nenter here : ";
cin>>n;
cout<<","<<x1<<","<<x2;
for(int i=3; i<=n;i++)
{

x3=x2+x1;
x1=x2;
x2=x3;
sum = sum + x3;
cout<<","<<x3;
}
cout<<"\n Result = "<<sum;
getch();
return 0;
}

 using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
int x1 = 1, x2 = 1, x3, n, sum = 0;
n = Int32.Parse(textBox1.Text);
lbl1.Text=lbl1.Text+x1+","+x2;
for (int i = 3; i <= n; i++)
{

x3 = x2 + x1;
x1 = x2;
x2 = x3;
sum = sum + x3;
lbl1.Text=lbl1.Text+","+x3;
}
lbl2.Text= lbl2.Text+sum;
}

private void textBox1_TextChanged(object sender, EventArgs e)
{
lbl1.Text = "Result :";
lbl2.Text = "sum :";
}
}
}