Golang | Leetcode Golang题解之第384题打乱数组
题目：
题解：
type Solution struct {
nums, original []int
}
func Constructor(nums []int) Solution {
return Solution{nums, append([]int(nil), nums...)}
}
func (s *Solution) Reset() []int {
copy(s.nums, s.original)
return s.nums
}
func (s *Solution) Shuffle() []int {
n := len(s.nums)
for i := range s.nums {
j := i + rand.Intn(n-i)
s.nums[i], s.nums[j] = s.nums[j], s.nums[i]
}
return s.nums
}