js常规思路
const readline = require('readline'); const rl = readline.createInterface(process.stdin,process.stdout); var n = 0,list = []; rl.on('line',function(line){ function print(list){ let last = '' list.forEach(item=>{ if(item!=last){ console.log(item); last = item; } }) } if(n==0 && list.length==0){ n = parseInt(line) }else{ list.push(line); if(list.length == n){ // 输出 list.sort((a,b)=>{return a-b}); print(list) // 清空 n = 0;list = [] } } })