题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
const rl = require("readline").createInterface({ input: process.stdin });
rl.on('line',function(line){
// 先split分割，再用reverse反转
let res = line.split('').reverse()
// set去重
let arr = Array.from(new Set(res))
// join拼接字符串
console.log(arr.join(''))
})
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