Update0455.分发饼干，添加C#

problems/0455.分发饼干.md

@@ -378,6 +378,28 @@ object Solution {
   }
 }
 ```
+### C#
+```csharp
+public class Solution
+{
+    public int FindContentChildren(int[] g, int[] s)
+    {
+        Array.Sort(g);
+        Array.Sort(s);
+        int index = s.Length - 1;
+        int res = 0;
+        for (int i = g.Length - 1; i >=0; i--)
+        {
+            if(index >=0 && s[index]>=g[i])
+            {
+                res++;
+                index--;
+            }
+        }
+        return res;
+    }
+}
+```
 
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