Merge pull request #989 from 0xff-dev/1078

Add solution and test-cases for problem 1078

leetcode/1001-1100/1078.Occurrences-After-Bigram/README.md

@@ -1,28 +1,23 @@
 # [1078.Occurrences After Bigram][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
+Given two strings `first` and `second`, consider occurrences in some text of the form `"first second third"`, where `second` comes immediately after `first`, and `third` comes immediately after `second`.
+
+Return an array of all the words `third` for each occurrence of `"first second third"`.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: text = "alice is a good girl she is a good student", first = "a", second = "good"
+Output: ["girl","student"]
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Occurrences After Bigram
-```go
 ```
-
+Input: text = "we will we will rock you", first = "we", second = "will"
+Output: ["we","rock"]
+```
 
 ## 结语
 

leetcode/1001-1100/1078.Occurrences-After-Bigram/Solution.go

@@ -1,5 +1,24 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+import "strings"
+
+func Solution(text string, first string, second string) []string {
+	testlist := strings.Split(text, " ")
+	fm := make(map[string]struct{})
+	sm := make(map[string]struct{})
+	for _, w := range strings.Split(first, " ") {
+		fm[w] = struct{}{}
+	}
+	for _, w := range strings.Split(second, " ") {
+		sm[w] = struct{}{}
+	}
+	ans := make([]string, 0)
+	for i := 0; i < len(testlist)-2; i++ {
+		_, ok1 := fm[testlist[i]]
+		_, ok2 := sm[testlist[i+1]]
+		if ok1 && ok2 {
+			ans = append(ans, testlist[i+2])
+		}
+	}
+	return ans
 }

leetcode/1001-1100/1078.Occurrences-After-Bigram/Solution_test.go

@@ -9,31 +9,30 @@ import (
 func TestSolution(t *testing.T) {
 	//	测试用例
 	cases := []struct {
-		name   string
-		inputs bool
-		expect bool
+		name    string
+		a, b, c string
+		expect  []string
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", "alice is a good girl she is a good student", "a", "good", []string{"girl", "student"}},
+		{"TestCase2", "we will we will rock you", "we", "will", []string{"we", "rock"}},
 	}
 
 	//	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.a, c.b, c.c)
 			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 %v",
+					c.expect, got, c.a, c.b, c.c)
 			}
 		})
 	}
 }
 
-//	压力测试
+// 压力测试
 func BenchmarkSolution(b *testing.B) {
 }
 
-//	使用案列
+// 使用案列
 func ExampleSolution() {
 }