Jun 12, 2020

C program to print Fibonacci series

Ex: write a C program to print Fibonacci series. How to write a C program to print Fibonacci series. C program for Fibonacci series.

Input from user:

Enter number for how many times generate series: 7

Expected output:

Fibonacci series is: 0 1 1 2 3 5 8 13 21





Step by step logic of the given program:

1. First  declare intiger variable's  no(number), a=0, b=1, c, i .

2. After that accept input (number) from user.

3. print value of a and b directly. (and decrease number by 2 in the for loop)

4. After that use one for loop which looks like. 
for(i=0;i<no-2;i++)

5. Inside the for loop Fibonacci series calculate using..

c=a+b;
a=b;
b=c;

6. After that Print value of c inside the for loop.





Program:


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

 int no,a=0,b=1,c,i;

printf("Enter number for how many times generate series:");
 scanf("%d",&no);

 printf("FIBONACCI SERIES: ");

 printf("%d %d ",a,b);

 for(i=0;i<no-2;i++)
 {
c=a+b;
a=b;
b=c;

   printf("%d ",c);
 }

 return 0;
}




Above prgram shows the following output:



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