Merge pull request #1248 from 0xff-dev/3330

Add solution and test-cases for problem 3330

Author: 6boris

leetcode/3301-3400/3330.Find-the-Original-Typed-String-I/README.md

@@ -1,28 +1,46 @@
 # [3330.Find the Original Typed String I][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
 
+Alice is attempting to type a specific string on her computer. However, she tends to be clumsy and **may** press a key for too long, resulting in a character being typed **multiple** times.
+
+Although Alice tried to focus on her typing, she is aware that she may still have done this **at most** once.
+
+You are given a string `word`, which represents the **final** output displayed on Alice's screen.
+
+Return the total number of possible original strings that Alice might have intended to type.
+
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: word = "abbcccc"
+
+Output: 5
+
+Explanation:
+
+The possible strings are: "abbcccc", "abbccc", "abbcc", "abbc", and "abcccc".
 ```
 
-## 题意
-> ...
+**Example 2:**
 
-## 题解
+```
+Input: word = "abcd"
+
+Output: 1
 
-### 思路1
-> ...
-Find the Original Typed String I
-```go
+Explanation:
+
+The only possible string is "abcd".
 ```
 
+**Example 3:**
+
+```
+Input: word = "aaaa"
+
+Output: 4
+```
 
 ## 结语
 

leetcode/3301-3400/3330.Find-the-Original-Typed-String-I/Solution.go

@@ -1,5 +1,22 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(word string) int {
+	ans := 1
+	c := 0
+	pre := byte(' ')
+	for _, b := range []byte(word) {
+		if b == pre {
+			c++
+			continue
+		}
+		if c > 1 {
+			ans += c - 1
+		}
+		c = 1
+		pre = b
+	}
+	if c > 1 {
+		ans += c - 1
+	}
+	return ans
 }

leetcode/3301-3400/3330.Find-the-Original-Typed-String-I/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", "abbcccc", 5},
+		{"TestCase2", "abcd", 1},
+		{"TestCase3", "aaaa", 4},
 	}
 
 	//	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() {
 }