fibonacci best performance javascript
// A sequência começa com 0 e 1, depois,
// os números subsequentes são compostos
// pela soma dos dois números anteriores
// da sequência. Daí:
// (x - 2) + (x - 1) = próximo número da sequência
function fibonacci(n) {
const list = [0, 1];
for (let x = 2; x < n + 1; x += 1) {
list.push(list[x - 2] + list[x - 1]);
}
return list[n];
}
console.log(fibonacci(4));fibonacci sums javascript
// Implement a method that finds the sum of the first n
// fibonacci numbers recursively. Assume n > 0
function fibsSum(n) {
if ( n === 1 ) {
return 1;
}
if (n === 2 ) {
return 2;
}
let sum = fibsSum(n-1) + n;
return sum;
}Copyright © 2021 Codeinu
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