From ec0f38a51eb44e4b22b1e8011221b998e55a6a46 Mon Sep 17 00:00:00 2001
From: 0xff-dev <stevenshuang521@gmail.com>
Date: Tue, 22 Jul 2025 09:15:18 +0800
Subject: [PATCH] Add solution and test-cases for problem 2413

---
 .../2413.Smallest-Even-Multiple/README.md     | 23 ++++++++-----------
 .../2413.Smallest-Even-Multiple/Solution.go   |  7 ++++--
 .../Solution_test.go                          | 13 +++++------
 3 files changed, 20 insertions(+), 23 deletions(-)

diff --git a/leetcode/2401-2500/2413.Smallest-Even-Multiple/README.md b/leetcode/2401-2500/2413.Smallest-Even-Multiple/README.md
index c16d14f57..f0541420f 100755
--- a/leetcode/2401-2500/2413.Smallest-Even-Multiple/README.md
+++ b/leetcode/2401-2500/2413.Smallest-Even-Multiple/README.md
@@ -1,28 +1,23 @@
 # [2413.Smallest Even Multiple][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 a **positive** integer `n`, return the smallest positive integer that is a multiple of **both** `2` and `n`.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: n = 5
+Output: 10
+Explanation: The smallest multiple of both 5 and 2 is 10.
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Smallest Even Multiple
-```go
 ```
-
+Input: n = 6
+Output: 6
+Explanation: The smallest multiple of both 6 and 2 is 6. Note that a number is a multiple of itself.
+```
 
 ## 结语
 
diff --git a/leetcode/2401-2500/2413.Smallest-Even-Multiple/Solution.go b/leetcode/2401-2500/2413.Smallest-Even-Multiple/Solution.go
index d115ccf5e..ba225bb4f 100644
--- a/leetcode/2401-2500/2413.Smallest-Even-Multiple/Solution.go
+++ b/leetcode/2401-2500/2413.Smallest-Even-Multiple/Solution.go
@@ -1,5 +1,8 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(n int) int {
+	if n&1 == 1 {
+		return 2 * n
+	}
+	return n
 }
diff --git a/leetcode/2401-2500/2413.Smallest-Even-Multiple/Solution_test.go b/leetcode/2401-2500/2413.Smallest-Even-Multiple/Solution_test.go
index 14ff50eb4..13ba7368d 100644
--- a/leetcode/2401-2500/2413.Smallest-Even-Multiple/Solution_test.go
+++ b/leetcode/2401-2500/2413.Smallest-Even-Multiple/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 int
+		expect int
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", 5, 10},
+		{"TestCase2", 6, 6},
 	}
 
 	//	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() {
 }