题解 | #查找输入整数二进制中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
    while(num = await readline()){
        console.log( parseInt(num).toString(2).replaceAll(/0+/g,'').length );
    }
}()