Fibonacci Series ( For )

#include<stdio.h>

main()

{

  int first = 0, second = 1, i, n, sum = 0;

  printf("Enter the number of terms: ");

  scanf("%d", & n);

  printf("Fibonacci Series:\n");

  for (i = 1; i <= n; i++)

  {

    if (i == 1)

    {

      sum = 1;

    } else

    {

      sum = first + second;

      first = second;

      second = sum;

    }

    printf("%d - %d\n", i, sum);

  }

}

     

           

Note: Need to be arranged in compiler after copied

   

 OutPut:

Enter the number of terms: 15 Fibonacci Series: 1 - 1 2 - 1 3 - 2 4 - 3 5 - 5 6 - 8 7 - 13 8 - 21 9 - 34 10 - 55 11 - 89 12 - 144 13 - 233 14 - 377 15 - 610