Merge pull request #1101 from 0xff-dev/1765

Add solution and test-cases for problem 1765

Author: 6boris

leetcode/1701-1800/1765.Map-of-Highest-Peak/1.png

@@ -1,28 +1,42 @@
 # [1765.Map of Highest Peak][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 matrix `isWater` of size `m x n` that represents a map of **land** and **water** cells.
+
+- If `isWater[i][j] == 0`, cell `(i, j)` is a **land** cell.
+- If `isWater[i][j] == 1`, cell `(i, j)` is a **water** cell.
+
+You must assign each cell a height in a way that follows these rules:
+
+- The height of each cell must be non-negative.
+- If the cell is a **water** cell, its height must be `0`.
+- Any two adjacent cells must have an absolute height difference of **at most 1**. A cell is adjacent to another cell if the former is directly north, east, south, or west of the latter (i.e., their sides are touching).
+
+Find an assignment of heights such that the maximum height in the matrix is **maximized**.
 
-**Example 1:**
+Return an integer matrix `height` of size `m x n` where `height[i][j]` is cell `(i, j)`'s height. If there are multiple solutions, return **any** of them.
+
+**Example 1:**  
+
+![1](./1.png)
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: isWater = [[0,1],[0,0]]
+Output: [[1,0],[2,1]]
+Explanation: The image shows the assigned heights of each cell.
+The blue cell is the water cell, and the green cells are the land cells.
 ```
 
-## 题意
-> ...
+**Example 2:**  
 
-## 题解
+![2](./2.png)
 
-### 思路1
-> ...
-Map of Highest Peak
-```go
 ```
-
+Input: isWater = [[0,0,1],[1,0,0],[0,0,0]]
+Output: [[1,1,0],[0,1,1],[1,2,2]]
+Explanation: A height of 2 is the maximum possible height of any assignment.
+Any height assignment that has a maximum height of 2 while still meeting the rules will also be accepted.
+```
 
 ## 结语
 

leetcode/1701-1800/1765.Map-of-Highest-Peak/2.png

@@ -1,5 +1,41 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(isWater [][]int) [][]int {
+	var dir = [][2]int{
+		{0, 1}, {0, -1}, {1, 0}, {-1, 0},
+	}
+	queue := [][2]int{}
+	m, n := len(isWater), len(isWater[0])
+	res := make([][]int, m)
+	for i := range m {
+		res[i] = make([]int, n)
+		for j := range n {
+			res[i][j] = -1
+		}
+	}
+	for i := range m {
+		for j := range n {
+			if isWater[i][j] == 1 {
+				queue = append(queue, [2]int{i, j})
+				res[i][j] = 0
+			}
+		}
+	}
+	h := 1
+	for len(queue) > 0 {
+		nq := make([][2]int, 0)
+		for _, cur := range queue {
+			for _, d := range dir {
+				nx, ny := cur[0]+d[0], cur[1]+d[1]
+				if nx >= 0 && nx < m && ny >= 0 && ny < n && res[nx][ny] == -1 {
+					res[nx][ny] = h
+					nq = append(nq, [2]int{nx, ny})
+				}
+			}
+		}
+		queue = nq
+		h++
+	}
+
+	return res
 }

leetcode/1701-1800/1765.Map-of-Highest-Peak/README.md

@@ -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{{0, 1}, {0, 0}}, [][]int{{1, 0}, {2, 1}}},
+		{"TestCase2", [][]int{{0, 0, 1}, {1, 0, 0}, {0, 0, 0}}, [][]int{{1, 1, 0}, {0, 1, 1}, {1, 2, 2}}},
 	}
 
 	//	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() {
 }