Merge pull request 'criando o codigo do e o calculo fibonacci que deve retornar' (#1) from feature/fibonacci into develop

Reviewed-on: #1

04-fibonacci/index.js

@@ -1,4 +1,9 @@
-export function fibonacci(value) {
+export function fibonacci(value, memo) {
   // implementar logica aqui
-  
-}
+  memo = memo || {}
+
+  if (memo[value]) return memo[value]
+  if (value <= 1) return value
+
+  return (memo[value] = fibonacci(value - 1, memo) + fibonacci(value - 2, memo))
+}