Add solution and test-cases for problem 916

leetcode/901-1000/0916.Word-Subsets/README.md

@@ -1,28 +1,29 @@
 # [916.Word Subsets][title]
 
-> [!WARNING|style:flat]
-> This question is temporarily unanswered if you have good ideas. Welcome to [Create Pull Request PR](https://github.com/kylesliu/awesome-golang-algorithm)
-
 ## Description
+You are given two string arrays `words1` and `words2`.
+
+A string `b` is a **subset** of string `a` if every letter in `b` occurs in `a` including multiplicity.
+
+- For example, `"wrr"` is a subset of `"warrior"` but is not a subset of `"world"`.
+
+A string `a` from `words1` is **universal** if for every string `b` in `words2`, `b` is a subset of `a`.
+
+Return an array of all the **universal** strings in `words1`. You may return the answer in **any order**.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: words1 = ["amazon","apple","facebook","google","leetcode"], words2 = ["e","o"]
+Output: ["facebook","google","leetcode"]
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Word Subsets
-```go
 ```
-
+Input: words1 = ["amazon","apple","facebook","google","leetcode"], words2 = ["l","e"]
+Output: ["apple","google","leetcode"]
+```
 
 ## 结语
 

leetcode/901-1000/0916.Word-Subsets/Solution.go

@@ -1,5 +1,34 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(words1 []string, words2 []string) []string {
+	ac := [26]int{}
+	for _, w := range words2 {
+		tmp := [26]int{}
+		for _, b := range w {
+			tmp[b-'a']++
+		}
+		for i := range 26 {
+			if tmp[i] > ac[i] {
+				ac[i] = tmp[i]
+			}
+		}
+	}
+	ans := make([]string, 0)
+	for _, a := range words1 {
+		tmp := [26]int{}
+		for _, b := range a {
+			tmp[b-'a']++
+		}
+		ok := true
+		for i := range 26 {
+			if ac[i] > tmp[i] {
+				ok = false
+				break
+			}
+		}
+		if ok {
+			ans = append(ans, a)
+		}
+	}
+	return ans
 }

leetcode/901-1000/0916.Word-Subsets/Solution_test.go

@@ -10,30 +10,29 @@ func TestSolution(t *testing.T) {
 	//	测试用例
 	cases := []struct {
 		name   string
-		inputs bool
-		expect bool
+		w1, w2 []string
+		expect []string
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", []string{"amazon", "apple", "facebook", "google", "leetcode"}, []string{"e", "o"}, []string{"facebook", "google", "leetcode"}},
+		{"TestCase2", []string{"amazon", "apple", "facebook", "google", "leetcode"}, []string{"l", "e"}, []string{"apple", "google", "leetcode"}},
 	}
 
 	//	开始测试
 	for i, c := range cases {
 		t.Run(c.name+" "+strconv.Itoa(i), func(t *testing.T) {
-			got := Solution(c.inputs)
+			got := Solution(c.w1, c.w2)
 			if !reflect.DeepEqual(got, c.expect) {
-				t.Fatalf("expected: %v, but got: %v, with inputs: %v",
-					c.expect, got, c.inputs)
+				t.Fatalf("expected: %v, but got: %v, with inputs: %v %v",
+					c.expect, got, c.w1, c.w2)
 			}
 		})
 	}
 }
 
-//	压力测试
+// 压力测试
 func BenchmarkSolution(b *testing.B) {
 }
 
-//	使用案列
+// 使用案列
 func ExampleSolution() {
 }