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
    while ((line = await readline())) {
        const number = parseInt(line);
        const er = number.toString(2); // 将数字转换成2进制数字的字符串类型
        let value = 0;
        for (const i of er) {
            if (i === "1") value++;
        }
        console.log(value);
    }
})();