Add solution and test-cases for problem 2740

Author: 0xff-dev

leetcode/2701-2800/2740.Find-the-Value-of-the-Partition/README.md

@@ -0,0 +1,48 @@
+# [2740.Find the Value of the Partition][title]
+
+## Description
+You are given a **positive** integer array `nums`.
+
+Partition `nums` into two arrays, `nums1` and `nums2`, such that:
+
+- Each element of the array `nums` belongs to either the array `nums1` or the array `nums2`.
+- Both arrays are **non-empty**.
+- The value of the partition is **minimized**.
+
+The value of the partition is `|max(nums1) - min(nums2)|`.
+
+Here, `max(nums1)` denotes the maximum element of the array `nums1`, and `min(nums2)` denotes the minimum element of the array `nums2`.
+
+Return the integer denoting the value of such partition.
+
+**Example 1:**
+
+```
+Input: nums = [1,3,2,4]
+Output: 1
+Explanation: We can partition the array nums into nums1 = [1,2] and nums2 = [3,4].
+- The maximum element of the array nums1 is equal to 2.
+- The minimum element of the array nums2 is equal to 3.
+The value of the partition is |2 - 3| = 1. 
+It can be proven that 1 is the minimum value out of all partitions.
+Example
+```
+
+**Example 2:**
+
+```
+Input: nums = [100,1,10]
+Output: 9
+Explanation: We can partition the array nums into nums1 = [10] and nums2 = [100,1].
+- The maximum element of the array nums1 is equal to 10.
+- The minimum element of the array nums2 is equal to 1.
+The value of the partition is |10 - 1| = 9.
+It can be proven that 9 is the minimum value out of all partitions.
+```
+
+## 结语
+
+如果你同我一样热爱数据结构、算法、LeetCode，可以关注我 GitHub 上的 LeetCode 题解：[awesome-golang-algorithm][me]
+
+[title]: https://leetcode.com/problems/find-the-value-of-the-partition/
+[me]: https://github.com/kylesliu/awesome-golang-algorithm

leetcode/2701-2800/2740.Find-the-Value-of-the-Partition/Solution.go

@@ -1,5 +1,15 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+import "sort"
+
+func Solution(nums []int) int {
+	sort.Ints(nums)
+	ans := -1
+	for i := 1; i < len(nums); i++ {
+		diff := nums[i] - nums[i-1]
+		if ans == -1 || ans > diff {
+			ans = diff
+		}
+	}
+	return ans
 }

leetcode/2701-2800/2740.Find-the-Value-of-the-Partition/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{1, 2, 3, 4}, 1},
+		{"TestCase2", []int{100, 1, 10}, 9},
 	}
 
 	//	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() {
 }