Fibonacci Series C program

Fibonacci numbers:Each Fibonacci numbers is defined to be the sum of its two immediate previous terms, where as the first two number are 0 and 1.

The Fibonacci numbers are the numbers in the following integer sequence :

0 1 1 2 3 5 8 13 21 34 55 89 144. . . . .

/*Programme to print Fibonacci numbers less than given user number*/

#include<stdio.h>
#include<conio.h>
int main()
{

 int x,y,z,num;

 printf("Enter any last number of Fibonacci series : ");

 scanf("%d",&num);

 x=0;

 y=1;

 while(num>=x)

 {
    z=x+y;

    printf("%d\t",x);

    x=y;

    y=z;

 }
 getch();

 return 0;

}

        Output of above program :

Enter last number where goes to end Fibonacci series : 70

0  1  1  2  3  5  8  13  21  34  55

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