Merge pull request 6boris#1286 from 0xff-dev/1452

Add solution and test-cases for problem 1452

Author: 6boris

leetcode/1401-1500/1452.People-Whose-List-of-Favorite-Companies-Is-Not-a-Subset-of-Another-List/README.md

@@ -0,0 +1,39 @@
+# [1452.People Whose List of Favorite Companies Is Not a Subset of Another List][title]
+
+## Description
+Given the array `favoriteCompanies` where `favoriteCompanies[i]` is the list of favorites companies for the `ith` person (**indexed from 0**).
+
+Return the indices of people whose list of favorite companies is not a **subset** of any other list of favorites companies. You must return the indices in increasing order.
+
+**Example 1:**
+
+```
+Input: favoriteCompanies = [["leetcode","google","facebook"],["google","microsoft"],["google","facebook"],["google"],["amazon"]]
+Output: [0,1,4] 
+Explanation: 
+Person with index=2 has favoriteCompanies[2]=["google","facebook"] which is a subset of favoriteCompanies[0]=["leetcode","google","facebook"] corresponding to the person with index 0. 
+Person with index=3 has favoriteCompanies[3]=["google"] which is a subset of favoriteCompanies[0]=["leetcode","google","facebook"] and favoriteCompanies[1]=["google","microsoft"]. 
+Other lists of favorite companies are not a subset of another list, therefore, the answer is [0,1,4].
+```
+
+**Example 2:**
+
+```
+Input: favoriteCompanies = [["leetcode","google","facebook"],["leetcode","amazon"],["facebook","google"]]
+Output: [0,1] 
+Explanation: In this case favoriteCompanies[2]=["facebook","google"] is a subset of favoriteCompanies[0]=["leetcode","google","facebook"], therefore, the answer is [0,1].
+```
+
+**Example 3:**
+
+```
+Input: favoriteCompanies = [["leetcode"],["google"],["facebook"],["amazon"]]
+Output: [0,1,2,3]
+```
+
+## 结语
+
+如果你同我一样热爱数据结构、算法、LeetCode，可以关注我 GitHub 上的 LeetCode 题解：[awesome-golang-algorithm][me]
+
+[title]: https://leetcode.com/problems/people-whose-list-of-favorite-companies-is-not-a-subset-of-another-list/
+[me]: https://github.com/kylesliu/awesome-golang-algorithm

leetcode/1401-1500/1452.People-Whose-List-of-Favorite-Companies-Is-Not-a-Subset-of-Another-List/Solution.go

@@ -1,5 +1,33 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(favoriteCompanies [][]string) []int {
+	l := len(favoriteCompanies)
+	subMaps := make([]map[string]struct{}, l)
+	for i := range favoriteCompanies {
+		subMaps[i] = map[string]struct{}{}
+		for _, com := range favoriteCompanies[i] {
+			subMaps[i][com] = struct{}{}
+		}
+	}
+	var ans []int
+	for i := 0; i < l; i++ {
+		ok := true
+		for next := 0; next < l && ok; next++ {
+			if next == i || len(subMaps[i]) > len(subMaps[next]) {
+				continue
+			}
+			in := true
+			for k := range subMaps[i] {
+				if _, ok1 := subMaps[next][k]; !ok1 {
+					in = false
+					break
+				}
+			}
+			ok = !in
+		}
+		if ok {
+			ans = append(ans, i)
+		}
+	}
+	return ans
 }

leetcode/1401-1500/1452.People-Whose-List-of-Favorite-Companies-Is-Not-a-Subset-of-Another-List/Solution_test.go

@@ -10,12 +10,12 @@ func TestSolution(t *testing.T) {
 	//	测试用例
 	cases := []struct {
 		name   string
-		inputs bool
-		expect bool
+		inputs [][]string
+		expect []int
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", [][]string{{"leetcode", "google", "facebook"}, {"google", "microsoft"}, {"google", "facebook"}, {"google"}, {"amazon"}}, []int{0, 1, 4}},
+		{"TestCase2", [][]string{{"leetcode", "google", "facebook"}, {"leetcode", "amazon"}, {"facebook", "google"}}, []int{0, 1}},
+		{"TestCase3", [][]string{{"leetcode"}, {"google"}, {"facebook"}, {"amazon"}}, []int{0, 1, 2, 3}},
 	}
 
 	//	开始测试
@@ -30,10 +30,10 @@ func TestSolution(t *testing.T) {
 	}
 }
 
-//	压力测试
+// 压力测试
 func BenchmarkSolution(b *testing.B) {
 }
 
-//	使用案列
+// 使用案列
 func ExampleSolution() {
 }