From 6dcc537cef392a24caa636667f1bd4730d9f2898 Mon Sep 17 00:00:00 2001
From: Shixiaocaia <68102662+shixiaocaia@users.noreply.github.com>
Date: Wed, 30 Aug 2023 11:56:10 +0800
Subject: [PATCH] =?UTF-8?q?Update=200200.=E5=B2=9B=E5=B1=BF=E6=95=B0?=
 =?UTF-8?q?=E9=87=8F.=E6=B7=B1=E6=90=9C=E7=89=88=20Go=20=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0200.岛屿数量.深搜版.md | 52 ++++++++++++++++++++++++-
 1 file changed, 51 insertions(+), 1 deletion(-)

diff --git a/problems/0200.岛屿数量.深搜版.md b/problems/0200.岛屿数量.深搜版.md
index f610e323..ad4a6ede 100644
--- a/problems/0200.岛屿数量.深搜版.md
+++ b/problems/0200.岛屿数量.深搜版.md
@@ -219,7 +219,7 @@ class Solution {
 }
 ```
 
-Python:
+### Python:
 
 ```python
 # 版本一
@@ -279,6 +279,56 @@ class Solution:
         return result
 ```
 
+### Go
+
+```go
+func numIslands(grid [][]byte) int {
+    // 用1标记已访问
+    visited := make([][]int, len(grid))
+    for i := 0; i < len(visited); i++{
+        visited[i] = make([]int, len(grid[0]))
+    }
+
+    var bfs func(x, y int)
+    bfs = func(x, y int){
+        stack := make([][]int, 0)
+        stack = append(stack, []int{x, y})
+        moveX := []int{1, -1, 0, 0}
+        moveY := []int{0, 0, 1, -1} 
+
+        for len(stack) != 0{
+            node := stack[len(stack) - 1]
+            stack = stack[:len(stack) - 1]
+
+            for i := 0; i < 4; i++{
+                dx := moveX[i] + node[0]
+                dy := moveY[i] + node[1]
+                if dx < 0 || dx >= len(grid) || dy < 0 || dy >= len(grid[0]) || visited[dx][dy] == 1{
+                    continue
+                }
+                visited[dx][dy] = 1
+                if grid[dx][dy] == '1'{
+                    stack = append(stack, []int{dx,dy})
+                }
+            }
+        }
+    }
+
+    result := 0
+    for i := 0; i < len(grid); i++{
+        for j := 0; j < len(grid[0]); j++{
+            if visited[i][j] == 0 && grid[i][j] == '1'{
+                bfs(i, j)
+                visited[i][j] = 1
+                result++
+            }
+        }
+    }
+
+    return result
+}
+```
+
 <p align="center">
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>