（借个楼 粘过去了格式化之后再看，一句话写完） const readline = require("readline"); const rl = readline.createInterface({ input: process.stdin, output: process.stdout, }); rl.on("line", (line) => { const res = Number(line).toString(2); const result = res.split("0").sort((a, b) => a - b); const len = result.length - 1; console.log(result[len].length); });