题解 | #统计每个月兔子的总数#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;
// 换一种方式求斐波那契数列
void async function () {
    // Write your code here
    while(line = parseInt(await readline())){
        let arr = [0,1,1,2,3,5]
        if(line<=5){
            console.log(arr[line])
        }else{
            for(let i = 5;i<line;i++){
                arr.push(arr[i]+arr[i-1])
            }
            console.log(arr[arr.length-1])
        }
        
    }
}()