Fibnocci series {using loops}

 Fabonacci series {using loops}

#include<stdio.h>
#include<conio.h>
void main()
{
    int n,i,a=0,b=1,c;
    printf("enter value of n= ");
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        printf("%d,",a);
        c=a+b;
        a=b;
        b=c;
    }
getch();
}

Output

enter value of n= 7
0,1,1,2,3,5,8