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
    let line = await readline();
    line = parseInt(line, 10).toString(2);
    let count = line.split('1').length;
    if(count!==0){
        console.log(count-1)
    }else {
        console.log(count);
    }
}()