30 lines
506 B
C
30 lines
506 B
C
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#include "euler.h"
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#include "int_list.h"
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#include <stdio.h>
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int_list *fibonacci_until(int num)
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{
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static int_list list;
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int_list_init(&list);
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int term_one = 1;
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int term_two = 2;
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while (term_one < num)
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{
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if (term_one % 2 == 0) { int_list_add(&list, term_one); }
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int temp = term_two;
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term_two = term_two + term_one;
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term_one = temp;
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}
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return &list;
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}
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int main()
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{
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int_list *result;
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result = fibonacci_until(4000000);
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print_result(int_list_sum(result));
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return 0;
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}
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