349. 两个数组的交集 #
题目地址 #
解题思路 #
TODO
具体实现 #
```go
package main
import "fmt"
func intersection(nums1 []int, nums2 []int) []int {
if len(nums1) == 0 || len(nums2) == 0 {
return []int{}
}
var (
set = make(map[int]struct{}, 0)
ret = make([]int, 0)
)
// 重复的会直接覆盖
for _, each := range nums1 {
set[each] = struct{}{}
}
for _, each := range nums2 {
if _, ok := set[each]; ok {
ret = append(ret, each)
delete(set, each)
}
}
return ret
}
func main() {
fmt.Println(intersection([]int{1, 2, 2, 1}, []int{2, 2}))
}
```