题解 | #输入整型数组和排序标识，对其元素按照升序或降序进行排序#一行解决
输入整型数组和排序标识，对其元素按照升序或降序进行排序
http://www.nowcoder.com/practice/dd0c6b26c9e541f5b935047ff4156309
let len = readline()
let arr = readline()
let mode = readline()
console.log(arr.split(' ').sort((a,b)=>(mode === '0'?(a - b):(b - a))).join(' ')) 
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