题解 | 求int型正整数在内存中存储时1的个数
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
const num = await readline()
const binary = Number(num).toString(2)
const binArr = [...binary]
const length = binArr.filter((item) => item == "1").length
console.log(length)
}()
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