Thread: hwhere to put the msg in Fabonacci series

Originally Posted by deva

Hi friends

I am having trouble putting the "not a fabonacci number" msg in my code

, plz help

Code:

/*
  Name: fabonacci series and searching of element
  Copyright: devesh
  Author: 
  Date: 14/12/10 01:29
  Description: 
*/
14/12/10 01:29
#include<iostream.h>
#include<conio.h>

int main()


{
    int fab,x1=0,x2=1,no,a[18]; 
    
    for(int i=0;i<18;i++)
    {
    fab=x2+x1;
    x1=x2;
    x2=fab;
    a[i]=fab;
    cout<<fab<<"  ";
    }
    
    
    cout<<"\n\n enter the no to test :";
    cin>>no;
    
    for(int j=0;j<18;j++)
    
    {
    if(a[j]==no )
    {
    cout<<"\n\n Fabonacci";
    break;     
    }
    }
    getch();

}

you can't really do that in the for loop. How about checking for true or false in the for loop and then write the statement outside.

Code:

bool fib = false;
for(int j=0;j<18;j++)
{
  if(a[j]==no )
     {
       fib = true;
       break;     
    }
}
if ( fib == true)
   std::cout << no << " is a fib" << std::endl;
else
  std::cout << no << " is not a fib << std::endl;

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