题解 | #称砝码#

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 line1 = await readline();
    let line2 = await readline();
    let line3 = await readline();
    let weights = line2.split(" ");
    let nums = line3.split(" ");

    let fama = [];
    for (let i = 0; i < weights.length; i++) {
        for (let j = 0; j < nums[i]; j++) {
            fama.push(Number(weights[i]));
        }
    }
    let kind = new Set()
    kind.add(0)

    for(let i = 0;i<fama.length;i++){
        let arr =[...kind]
        for(let key of arr){
            kind.add(key+fama[i])
        }
    }
    console.log(kind.size)
})();