32 lines
530 B
Go
32 lines
530 B
Go
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package main
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func intersect(nums1, nums2 []int) []int {
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count := func(nums []int) map[int]int {
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freqs := make(map[int]int)
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for _, x := range nums {
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freqs[x]++
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}
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return freqs
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}
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freqs1 := count(nums1)
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freqs2 := count(nums2)
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if len(freqs1) > len(freqs2) {
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freqs1, freqs2 = freqs2, freqs1
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}
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intersected := []int{}
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for x, count1 := range freqs1 {
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count2, found := freqs2[x]
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if !found {
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continue
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}
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for range min(count1, count2) {
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intersected = append(intersected, x)
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}
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}
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return intersected
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}
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