Create readme.md

Author: kasyap1234

queues_reversal/readme.md

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+Given a Queue Q containing N elements. The task is to reverse the Queue. Your task is to complete the function rev(), that reverses the N elements of the queue.
+
+Example 1:
+
+Input:
+6
+4 3 1 10 2 6
+
+Output: 
+6 2 10 1 3 4
+
+Explanation: 
+After reversing the given
+elements of the queue , the resultant
+queue will be 6 2 10 1 3 4.