Merge pull request #2009 from thuanle123/0344-reverse-string

create 0344-reverse-string-csharp

Author: Ykhan799

Diff for: csharp/0344-reverse-string.cs

@@ -1,3 +1,20 @@
+// While Loop Solution
+class Solution
+{
+    public void ReverseString(char[] s)
+    {
+        int leftPointer = 0;
+        int rightPointer = s.Length - 1;
+        while (leftPointer < rightPointer)
+        {
+            char temp = s[leftPointer];
+            s[leftPointer++] = s[rightPointer];
+            s[rightPointer--] = temp;
+        }
+    }
+}
+
+// For Loop Solution
 public class Solution
 {
     public void ReverseString(char[] s)