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@pingjiang
Created October 13, 2014 14:09
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better memoized fabnacci
function fab(n) {
if (n < 3) {
return 1;
}
var p1=1, p2=1, p;
function _fab(m) {
if (m < n) {
p = p1 + p2;
p1 = p2;
p2 = p;
return _fab(m+1);
}
return p1+p2;
}
return _fab(3);
}
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