add csharp examples (#10)

09_dynamic_programming/csharp/01_longest_common_subsequence/.gitignore

@@ -0,0 +1,2 @@
+**/bin/*
+**/obj/*

09_dynamic_programming/csharp/01_longest_common_subsequence/.vscode/launch.json

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+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": ".NET Core Launch (console)",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": "build",
+            "program": "${workspaceRoot}/bin/Debug/netcoreapp1.0/01_longest_common_subsequence.dll",
+            "args": [],
+            "cwd": "${workspaceRoot}",
+            "externalConsole": false,
+            "stopAtEntry": false,
+            "internalConsoleOptions": "openOnSessionStart"
+        },
+        {
+            "name": ".NET Core Attach",
+            "type": "coreclr",
+            "request": "attach",
+            "processId": "${command.pickProcess}"
+        }
+    ]
+}

09_dynamic_programming/csharp/01_longest_common_subsequence/.vscode/tasks.json

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+{
+    "version": "0.1.0",
+    "command": "dotnet",
+    "isShellCommand": true,
+    "args": [],
+    "tasks": [
+        {
+            "taskName": "build",
+            "args": [
+                "${workspaceRoot}/project.json"
+            ],
+            "isBuildCommand": true,
+            "problemMatcher": "$msCompile"
+        }
+    ]
+}

09_dynamic_programming/csharp/01_longest_common_subsequence/Program.cs

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+using System;
+
+namespace ConsoleApplication
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+
+            if (word_a[i] == word_b[1])
+            {
+                cell[i][j] = cell[i - 1][j - 1] + 1;
+            }
+            else
+            {
+                cell[i][j] = Math.Max(cell[i - 1][j], cell[i][j - 1]);
+            }
+        }
+    }
+}

09_dynamic_programming/csharp/01_longest_common_subsequence/project.json

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+{
+  "version": "1.0.0-*",
+  "buildOptions": {
+    "debugType": "portable",
+    "emitEntryPoint": true
+  },
+  "dependencies": {},
+  "frameworks": {
+    "netcoreapp1.0": {
+      "dependencies": {
+        "Microsoft.NETCore.App": {
+          "type": "platform",
+          "version": "1.0.1"
+        }
+      },
+      "imports": "dnxcore50"
+    }
+  }
+}