题解 | #汽水瓶#
汽水瓶
https://www.nowcoder.com/practice/fe298c55694f4ed39e256170ff2c205f
const readline = require("readline");
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
rl.on("line", function (line) {
const a = fn(+line);
a && console.log(a);
});
const fn = (num: number) => {
if (num < 2) {
return 0;
}
let n = Math.floor(num / 2);
return n
// if ((n + num) / 3)
};
