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;

void async function () {
    // Write your code here
    while(line = await readline()){
        // 斐波拉契数列
        // 1 1 2 3 5
        function countRabbit(n) {
            if (n == 1 || n == 2) {
                return 1
            }
            return countRabbit(n - 1) + countRabbit(n - 2)
        }
        console.log(countRabbit(line))
    }
}()