Merge pull request #1112 from 0xff-dev/1800

Add solution and test-cases for problem 1800

Author: 6boris

leetcode/1701-1800/1800.Maximum-Ascending-Subarray-Sum/README.md

@@ -1,28 +1,35 @@
 # [1800.Maximum Ascending Subarray Sum][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 array of positive integers `nums`, return the maximum possible sum of an **ascending** subarray in `nums`.
+
+A subarray is defined as a contiguous sequence of numbers in an array.
+
+A subarray `[numsl, numsl+1, ..., numsr-1, numsr]` is **ascending** if for all `i` where `l <= i < r`, `numsi  < numsi+1`. Note that a subarray of size 1 is **ascending**.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: nums = [10,20,30,5,10,50]
+Output: 65
+Explanation: [5,10,50] is the ascending subarray with the maximum sum of 65.
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Maximum Ascending Subarray Sum
-```go
 ```
+Input: nums = [10,20,30,40,50]
+Output: 150
+Explanation: [10,20,30,40,50] is the ascending subarray with the maximum sum of 150.
+```
+
+**Example 3:**
 
+```
+Input: nums = [12,17,15,13,10,11,12]
+Output: 33
+Explanation: [10,11,12] is the ascending subarray with the maximum sum of 33.
+```
 
 ## 结语
 

leetcode/1701-1800/1800.Maximum-Ascending-Subarray-Sum/Solution.go

@@ -1,5 +1,18 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(nums []int) int {
+	sum := 0
+	pre := 0
+	ans := 0
+	for _, n := range nums {
+		if n > pre {
+			sum += n
+			pre = n
+			continue
+		}
+		ans = max(ans, sum)
+		sum = n
+		pre = n
+	}
+	return max(ans, sum)
 }

leetcode/1701-1800/1800.Maximum-Ascending-Subarray-Sum/Solution_test.go

@@ -10,12 +10,12 @@ 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{10, 20, 30, 5, 10, 50}, 65},
+		{"TestCase2", []int{10, 20, 30, 40, 50}, 150},
+		{"TestCase3", []int{12, 17, 15, 13, 10, 11, 12}, 33},
 	}
 
 	//	开始测试
@@ -30,10 +30,10 @@ 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() {
 }