题解 | #求小球落地5次后所经历的路程和第5次反弹的高度#

const readline = require("readline");

const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
});

rl.on("line", function (line: string) {
    const initHeight = parseInt(line);
    console.log(getTotalDistance(initHeight, 5));
    console.log(getHeight(initHeight, 5));
});

const getTotalDistance = (initHeight: number, times: number): number => {
    let total = initHeight;
    if (times > 1) {
        for (let i = 0; i < times - 1; i++) {
            total += initHeight * Math.pow(0.5, i);
        }
    }
    return total;
};

const getHeight = (initHeight: number, times: number): number => {
    return Math.pow(0.5, times) * initHeight;
};