Implement different operations on Priority Queue .i.e. adding element, removing element, size of priority queue, print the queue and top element of queue.
The first line of input contains an integer T denoting the no of test cases. For each test case, the first line of input contains an integer Q denoting the no of queries followed by Q space separated queries.
A query can be of the following types:
1 x (Adding x to the priority queue and print the queue)
2 (Removing the element from the top of the priority queue and printing that element )
3 (Get the element at the top of the priority queue)
4 (Get the size of the priority queue)
5 (Print the priority queue)
For each test case, the output is according to the query Q performed and if the priority queue is empty the output is -1.
7 6 1
1 6 means adding 6 in the queue and printing that, similarly adding 1 and 7 in the queue and printing the queue i.e. 7 6 1. By 4 it returns the size of the queue i.e 3. With 3 as input, it returns the element at the top i.e 7. With 2 it removes the top element i.e 7 from the queue and prints the element i.e. 7. Having 5 as input, it prints the queue i.e. 6 1 and again 2 remove the element and prints that i.e 6.
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