diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..31db540
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+**/bin
+**/obj
\ No newline at end of file
diff --git a/202508/3363 MaxCollectedFruits/C#/MaxCollectedFruits.csproj b/202508/3363 MaxCollectedFruits/C#/MaxCollectedFruits.csproj
new file mode 100644
index 0000000..2150e37
--- /dev/null
+++ b/202508/3363 MaxCollectedFruits/C#/MaxCollectedFruits.csproj	
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/202508/3363 MaxCollectedFruits/C#/MaxCollectedFruits.sln b/202508/3363 MaxCollectedFruits/C#/MaxCollectedFruits.sln
new file mode 100644
index 0000000..e5f8bd0
--- /dev/null
+++ b/202508/3363 MaxCollectedFruits/C#/MaxCollectedFruits.sln	
@@ -0,0 +1,24 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MaxCollectedFruits", "MaxCollectedFruits.csproj", "{AA67CF61-67B3-7229-E3F9-D471B0EF4EDE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{AA67CF61-67B3-7229-E3F9-D471B0EF4EDE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AA67CF61-67B3-7229-E3F9-D471B0EF4EDE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AA67CF61-67B3-7229-E3F9-D471B0EF4EDE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AA67CF61-67B3-7229-E3F9-D471B0EF4EDE}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B9D47F51-61C3-4A24-890A-01C9AC85EC93}
+	EndGlobalSection
+EndGlobal
diff --git a/202508/3363 MaxCollectedFruits/C#/Program.cs b/202508/3363 MaxCollectedFruits/C#/Program.cs
new file mode 100644
index 0000000..3824bef
--- /dev/null
+++ b/202508/3363 MaxCollectedFruits/C#/Program.cs	
@@ -0,0 +1,67 @@
+public class Solution
+{
+    public int MaxCollectedFruits(int[][] fruits)
+    {
+        int n = fruits.Length;
+        int ans = 0;
+        for (int i = 0; i < n; ++i) ans += fruits[i][i];
+
+        int dp()
+        {
+            int[] prev = Enumerable.Repeat(int.MinValue, n).ToArray();
+            int[] curr = new int[n];
+            prev[n - 1] = fruits[0][n - 1];
+            for (int i = 1; i < n - 1; ++i)
+            {
+                Array.Fill(curr, int.MinValue);
+                for (int j = Math.Max(n - 1 - i, i + 1); j < n; ++j)
+                {
+                    int best = prev[j];
+                    if (j - 1 >= 0)
+                    {
+                        best = Math.Max(best, prev[j - 1]);
+                    }
+                    if (j + 1 < n)
+                    {
+                        best = Math.Max(best, prev[j + 1]);
+                    }
+                    curr[j] = best + fruits[i][j];
+                }
+                var temp = prev;
+                prev = curr;
+                curr = temp;
+            }
+            return prev[n - 1];
+        }
+
+        ans += dp();
+
+        for (int i = 0; i < n; ++i)
+        {
+            for (int j = 0; j < i; ++j)
+            {
+                var temp = fruits[j][i];
+                fruits[j][i] = fruits[i][j];
+                fruits[i][j] = temp;
+            }
+        }
+
+        ans += dp();
+        return ans;
+    }
+
+
+}
+
+
+class Program
+{
+    static void Main()
+    {
+        var Solution = new Solution();
+
+        var fruits = new int[][] { [1,2,3,4],[5,6,8,7],[9,10,11,12],[13,14,15,16]};
+
+        Console.WriteLine(Solution.MaxCollectedFruits(fruits));
+    }
+}
\ No newline at end of file
diff --git a/Note/Dynamic Programming.md b/Note/Dynamic Programming.md
new file mode 100644
index 0000000..138982d
--- /dev/null
+++ b/Note/Dynamic Programming.md	
@@ -0,0 +1,4 @@
+# Dynamic programming 動態規劃
+
+## 2D
+https://hackmd.io/@bangyewu/By3RWr0ZT
\ No newline at end of file
diff --git a/README.md b/README.md
index f62596d..5b019fa 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
 # coding-practice
 
-Practice from Daily Leetcode
\ No newline at end of file
+Practice from Daily Leetcode
+ACC : bqq43498@toaik.com
+Password : ww5&Hy73dgh
\ No newline at end of file