C Program to Print the Fibonacci Series nad in various Options

/*C Program to print the Fibonacci series with various Options*/


#include
#include

//Function Prototype

void fibo(int);
void fiborec(int,int,int);
void main()

{
int i,num1=0,num2=1;
clrscr();

//Accept User Input

printf("Please enter the no. of terms value : ");
scanf("%d",&i);

//To Call Normal Function

printf("\nWithout Recursion\n");
printf("%5d%5d",num1,num2);
fibo(i-3);

//To Call Recursive Function

printf("\n\nUsing Recursion\n");
printf("%5d%5d",num1,num2);
fiborec(num1,num2,i-2);
getch();

}//End of main()

void fibo(int n)
{
int i,previous=1,sum=1,result=0;
for(i=0;i<=n;i++)
{
sum=previous+result;

result=previous;
previous=sum;
printf("%5d",sum);

}//End of For Loop

}//End of fibo()

void fiborec(int previous,int num2,int count)
{
int sum;

sum = previous + num2;
printf("%5d",sum);
count--;

if(count>0)//Exit Condition (Very Important in Recursion)
{
fiborec(num2,sum,count);

}
}//End of fiborec()

/*OUTPUT
--------
Please enter the no. of terms value : 12
Without Recursion

0 1 1 2 3 5 8 13 21 34 55 89

Using Recursion
0 1 1 2 3 5 8 13 21 34 55 89 */


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