题解 | #汽水瓶#

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())) {
    let list = [];
    list.push(parseInt(line));
    for (let index = 0; index < 9; index++) {
      let count = parseInt(await readline());
      if (count === 0) {
        break;
      }
      list.push(count);
    }

    let result = []
    list.forEach(item => {
      let drinkCount = 0;// 喝的饮料数
      while (item >= 3) {
        let changeBottles = parseInt(item / 3);// 能换的饮料数
        let otherBottoles = item % 3;// 每次兑换剩下的瓶子数

        drinkCount += changeBottles;
        item = changeBottles + otherBottoles;
      }

      if (item === 2) {
        drinkCount ++;
      }
      result.push(drinkCount);
    })
    for (const item of result) {
      console.log(item);
    }
  }
}()