Project Euler -2 (C Language)

Even Fibonacci Sum Problem code Solution

 /* Each new term in the Fibonacci sequence is generated

by adding the previous two terms.

By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

By considering the terms in the Fibonacci sequence whose

 values do not exceed four million,

find the sum of the even-valued terms.

*/

#include <stdio.h>

int main()

{

    int fibbo = 0;

    int a, b, c;

    a = 1;

    b = 2;

    while (a <= 4000000)

    {

        if (a % 2 == 0)

        {

            fibbo += a;

        }

        printf("%d\n", a);

        c = b;

        b = a + b;

        a = c;

    }

    printf("SUM : %d\n", fibbo);

    return 0;

}