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September 2017 Update

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Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions
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22
Task/Fibonacci-sequence/JavaScript/fibonacci-sequence-5.js
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@ -1,17 +1,7 @@
function Y(dn) {
return (function(fn) {
return fn(fn);
}(function(fn) {
return dn(function() {
return fn(fn).apply(null, arguments);
});
}));
}
var fib = Y(function(fn) {
return function(n) {
if (n === 0 || n === 1) {
return n;
}
return fn(n - 1) + fn(n - 2);
var fib = (function(cache){
return cache = cache || {}, function(n){
if (cache[n]) return cache[n];
else return cache[n] = n == 0 ? 0 : n < 0 ? -fib(-n)
: n <= 2 ? 1 : fib(n-2) + fib(n-1);
};
});
})();