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A Fibonacci Question

(2 posts)
  • Started 9 months ago by nullpointer
  • Latest reply from kartik

  1. nullpointer
    Member
    Posted 9 months ago # 

    #include<stdio.h>
main()
{
    int a,b,n,fib=0;
    a=0,b=1;
    scanf("%d",&n);
    if(n==0||n==1)
        printf("%d\n",n);
    while(n--!=0)
    {

        fib=a+b;
        a=b;
        b=fib;
        printf("%d+",fib);

    }
}

    for n = 3 o/p is 1+2+3+
    how to remve that extra '+' at the end of 3 so that o/p become 1+2+3

  2. kartik
    Moderator
    Posted 9 months ago #

    You can split the last printf statement into two printf statements. See following modified code.

    #include<stdio.h>
int main()
{
    int a, b, n, fib=0;
    a = 0, b = 1;
    scanf("%d",&n);
    if (n==0 || n==1)
        printf("%d\n", n);
    while (n-- != 0)
    {
        fib = a + b;
        a = b;
        b = fib;
        printf("%d",fib);
        if(n != 0)
          printf("+");
    }
    return 0;
}

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