program to get series (Fibonacci)0,1,1,2,3,5,8....15th term.

//program to get series 0,1,1,2,3,5,8....15th term.

#include<stdio.h>

#include<conio.h>

void main()
{
    int i=0,j=1,n,k;

     printf("%d\n",i);

     printf("%d\n",j);

      printf("enter  nth  number for 'n'\n");
  scanf("%f",&n);

  for(i=1;i<=n-2;i++)
    {          

         k=i+j;     

          printf( "%d\n",k);

        i=j;

       j=k;

    }

getch();
}
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logics in mind:

->take two initial numbers as 'i' and 'j' for first two values '0' and '1'. If you want then you can input these numbers and display them.

->since we need to display 15th terms so we input 15 or 16 for variable 'n'. We can also fix it inside loop.

->Fibonacci series is that where we get terms by adding two previous terms.

->We have displayed first two terms (0 and 1). now we need to display only 13th terms.

->We display that using loop.

->inside loop, we get next term by adding fist two terms (look above).

     ->we display that.

     ->now we assign value of 'j' to 'i' and 'k' to 'j'. it works and goes on working for next cycle/iteration