Merge pull request #1355 from 0xff-dev/2177

Add solution and test-cases for problem 2177

Author: 6boris

leetcode/2101-2200/2177.Find-Three-Consecutive-Integers-That-Sum-to-a-Given-Number/README.md

@@ -1,28 +1,24 @@
 # [2177.Find Three Consecutive Integers That Sum to a Given Number][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 an integer `num`, return three consecutive integers (as a sorted array) that **sum** to `num`. If `num` cannot be expressed as the sum of three consecutive integers, return an **empty** array.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: num = 33
+Output: [10,11,12]
+Explanation: 33 can be expressed as 10 + 11 + 12 = 33.
+10, 11, 12 are 3 consecutive integers, so we return [10, 11, 12].
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Find Three Consecutive Integers That Sum to a Given Number
-```go
 ```
-
+Input: num = 4
+Output: []
+Explanation: There is no way to express 4 as the sum of 3 consecutive integers.
+```
 
 ## 结语
 

leetcode/2101-2200/2177.Find-Three-Consecutive-Integers-That-Sum-to-a-Given-Number/Solution.go

@@ -1,5 +1,9 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(num int64) []int64 {
+	if num%3 != 0 {
+		return []int64{}
+	}
+	mid := num / 3
+	return []int64{mid - 1, mid, mid + 1}
 }

leetcode/2101-2200/2177.Find-Three-Consecutive-Integers-That-Sum-to-a-Given-Number/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 int64
+		expect []int64
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", 33, []int64{10, 11, 12}},
+		{"TestCase2", 4, []int64{}},
 	}
 
 	//	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() {
 }