Merge pull request #1290 from 0xff-dev/2414

Add solution and test-cases for problem 2414

Author: 6boris

leetcode/2401-2500/2414.Length-of-the-Longest-Alphabetical-Continuous-Substring/README.md

@@ -1,28 +1,28 @@
 # [2414.Length of the Longest Alphabetical Continuous Substring][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
+An **alphabetical continuous string** is a string consisting of consecutive letters in the alphabet. In other words, it is any substring of the string `"abcdefghijklmnopqrstuvwxyz"`.
+
+- For example, `"abc"` is an alphabetical continuous string, while `"acb"` and `"za"` are not.
+
+Given a string `s` consisting of lowercase letters only, return the length of the **longest** alphabetical continuous substring.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: s = "abacaba"
+Output: 2
+Explanation: There are 4 distinct continuous substrings: "a", "b", "c" and "ab".
+"ab" is the longest continuous substring.
 ```
 
-## 题意
-> ...
+**Example 2:**
 
-## 题解
-
-### 思路1
-> ...
-Length of the Longest Alphabetical Continuous Substring
-```go
 ```
-
+Input: s = "abcde"
+Output: 5
+Explanation: "abcde" is the longest continuous substring.
+```
 
 ## 结语
 

leetcode/2401-2500/2414.Length-of-the-Longest-Alphabetical-Continuous-Substring/Solution.go

@@ -1,5 +1,15 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(s string) int {
+	ans := 1
+	cur := 1
+	for i := 1; i < len(s); i++ {
+		if s[i] == s[i-1]+1 {
+			cur++
+		} else {
+			cur = 1
+		}
+		ans = max(ans, cur)
+	}
+	return ans
 }

leetcode/2401-2500/2414.Length-of-the-Longest-Alphabetical-Continuous-Substring/Solution_test.go

@@ -10,12 +10,11 @@ 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", "abacaba", 2},
+		{"TestCase2", "abcde", 5},
 	}
 
 	//	开始测试
@@ -30,10 +29,10 @@ 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() {
 }