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fibonacci with optional starting number and number series

 
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fibonacci with optional starting number and number series
daniel
5 Feb, 2007 - 11:06 PM
Post #1

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I'm a beginner with C and I have an assignment due tomorrow and I've spent 3 hours trying to figure out how to do this problem.... I am really stumped where to go from here, I keep getting "illegal else without matching if", please I need your help! i made only series of number but not the starting!!

QUOTE
#include<stdio.h>
#include<conio.h>

long fibo (int no);
main()
{
int n;
clrscr();
printf("\n Enter a number of sequence:");
scanf("%d", &n);
fibo(n);
getch();
}

long fibo (int no)
{
long int i,p,p1,p2;
p1=1;
p2=1;
p=1;
for(i=1;i<=no;i++){
printf(" %d",p);
if(i>=1){
p=p1+p2;
p2=p1;
p1=p;
}
else if(i<=0)
{
printf("not");
}


}
}



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Videege
RE: Fibonacci With Optional Starting Number And Number Series
5 Feb, 2007 - 11:19 PM
Post #2

rêvant.toujours
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There's no need to triple post. Please only post your question in one thread; I have removed the other two duplicates.

Thanks.
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horace
RE: Fibonacci With Optional Starting Number And Number Series
6 Feb, 2007 - 12:41 AM
Post #3

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I compiled and ran you program without problems, e.g. a run gave
Enter a number of sequence: 6
1 2 3 5 8 13
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AmitTheInfinity
RE: Fibonacci With Optional Starting Number And Number Series
6 Feb, 2007 - 12:47 AM
Post #4

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Well the code you entered is ok but you need one change that fibonacci series is like 1 1 2 3 5 8 .... and not 1 2 3 5 ...
so make changes in your code accordingly.

and about the input as starting number for fibonacci series then all you need to do is pass the number to your function and assign that number to the variables p, p1 & p2.

CODE

void fibo (int no,int start)
{
  long int i,p,p1,p2;
  p1=start;
  p2=start;
  p=start;
  printf("%d",p);
  for(i=1;i<no;i++)
  {
    printf(" %d",p);
    p=p1+p2;
    p2=p1;
    p1=p;    
  }
}


well about the validations given in thumbnails provided by you, then those can be done in the caller function like main.

Hope your problem is solved. smile.gif
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