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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	// your code goes here
  5. 	int k,r;
  6.     long int i=0,j=1,f;
  7.     long int sum = 1;
  8.  
  9.     printf("Enter the number range: ");
  10.     scanf("%d",&r);
  11.  
  12.     for(k=2;k<r;k++){
  13.          f=i+j;
  14.          i=j;
  15.          j=f;
  16.          sum = sum + j;
  17.     }
  18.  
  19.     printf("Sum of Fibonacci series is: %ld",sum);
  20.  
  21. return 0;
  22. }
  23.  
Success #stdin #stdout 0s 9432KB
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stdout
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Enter the number range: Sum of Fibonacci series is: 88
https://ideone.com/cLvKkz
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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