31 lines
392 B
C
31 lines
392 B
C
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/*
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* http://projecteuler.net
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*
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* Projecteuler - Problem 2
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* -----------------------
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* 2008-03-11 Henrik Hautakoski
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*/
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#include <stdio.h>
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int main() {
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int a = 1, b = 1, r = 0;
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for(;;) {
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int c = a + b;
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a = b;
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b = c;
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if (~c & 1)
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r += c;
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if (c >= 4000000)
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break;
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}
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printf("%i\n", r);
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return 0;
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}
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