题解 | #查找输入整数二进制中1的个数#
查找输入整数二进制中1的个数
https://www.nowcoder.com/practice/1b46eb4cf3fa49b9965ac3c2c1caf5ad
const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
rl.on('line', function (line:string) {
console.log(parseInt(line).toString(2).split('').filter(item => item ==='1').length)
});
