19 lines
390 B
C
19 lines
390 B
C
#include <stdlib.h>
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#include <stdio.h>
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int main(int argc, char* argv[]) {
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long prevfib = 1;
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long currfib = 2;
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long evenfibs = 2;
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while (currfib < 4000000) {
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long fib = currfib + prevfib;
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prevfib = currfib;
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currfib = fib;
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if (currfib % 2 == 0) {
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evenfibs += currfib;
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}
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}
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printf("%d\n", evenfibs);
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return 0;
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}
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