题解 | #24点游戏算法#

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
    let list = [];
    while ((line = await readline())) {
        let list = line.split(" ").map(Number);
        console.log(check(list, 0));
    }

    function check(list, result) {
        if (list.length == 0) {
            return result == 24;
        }
        for (let i = 0; i < list.length; i++) {
            let nums = list.slice(0, list.length);
            nums.splice(i,1);
            if (
                check(nums, result + +list[i]) ||
                check(nums, result - +list[i]) ||
                check(nums, result * +list[i]) ||
                check(nums, result / +list[i])
            )
                return true;
        }
        return false;
    }
})();