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<?php
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/*
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* Gnieark's anwser to euler problem 2
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* https://projecteuler.net/problem=2
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*/
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$i=1;
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$j=2;
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$sum=0;
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while($i<4000000){
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if(fmod($j,2)==0){
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$sum+=$j;
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}
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$new=$i+$j;
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$i=$j;
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$j=$new;
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}
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echo $sum; |