C Program to generate Fibonacci series

//Program to generate Fibonacci series
#include<stdio.h>
int main()
    {
    int n,i,f1=0,f2=1,f3;
    printf("\n Enter how many numbers you want to generate in Fibonacci series:");
    scanf("%d",&n);
    printf("\n The Fibonacci series is \n");
    printf("\n\t");//Spacing for output
    if(n==1)
        printf("%d",f1);
    else if(n==2)
        printf("%d %d",f1,f2);
    else
        if(n>2)
          {
        printf("%d %d ",f1,f2);
        for(i=3;i<=n;i++)
         {
           f3=f2+f1;
           f1=f2;
           f2=f3;
           printf(" %d ",f3);
         }
          }
    printf("\n");
return 0;
}