题解 | #无重复数组#
无重复数组
https://www.nowcoder.com/practice/d2fa3632268b41df9bc417b74802ad8c
<html lang="en">
<head>
<meta charset="UTF-8">
</head>
<body>
<script>
const _getUniqueNums = (start,end,n) => {
// 补全代码
let hash = new Array(end+1).fill(0)
let sub = end - start + 1
let result = []
for (let i = 0; i < n; i++) {
let t = Math.floor(Math.random()* sub) + start
while(hash[t]){
t = Math.floor(Math.random() *sub) + start
}
hash[t] = 1
result.push(t)
}
return result
}
</script>
</body>
</html>
