Add solution and test-cases for problem 3115

Author: 0xff-dev

leetcode/3101-3200/3115.Maximum-Prime-Difference/README.md

@@ -1,28 +1,29 @@
 # [3115.Maximum Prime Difference][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 an integer array `nums`.
+
+Return an integer that is the **maximum** distance between the **indices** of two (not necessarily different) prime numbers in `nums`.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
-```
+Input: nums = [4,2,9,5,3]
 
-## 题意
-> ...
+Output: 3
 
-## 题解
+Explanation: nums[1], nums[3], and nums[4] are prime. So the answer is |4 - 1| = 3.
+```
+
+**Example 2:**
 
-### 思路1
-> ...
-Maximum Prime Difference
-```go
 ```
+Input: nums = [4,8,2,8]
+
+Output: 0
 
+Explanation: nums[2] is prime. Because there is just one prime number, the answer is |2 - 2| = 0.
+```
 
 ## 结语
 

leetcode/3101-3200/3115.Maximum-Prime-Difference/Solution.go

@@ -1,5 +1,21 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(nums []int) int {
+	notPrimes := [101]bool{}
+	notPrimes[1] = true
+	for i := 2; i < 101; i++ {
+		if !notPrimes[i] {
+			for j := i + i; j < 101; j += i {
+				notPrimes[j] = true
+			}
+		}
+	}
+	m1, m2 := -1, len(nums)+1
+	for i, n := range nums {
+		if !notPrimes[n] {
+			m1 = max(m1, i)
+			m2 = min(m2, i)
+		}
+	}
+	return m1 - m2
 }

leetcode/3101-3200/3115.Maximum-Prime-Difference/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", []int{4, 2, 9, 5, 3}, 3},
+		{"TestCase2", []int{4, 8, 2, 8}, 0},
 	}
 
 	//	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() {
 }