JavaStudentProblem

Student Problem using priority list in java as an assignment for UpGrad. e space and will soon be unable to send or receive emails until you free up space or purchase additional storage.

Question- Prog lang: Java In this problem, there are types of events: ENTER (a student enters the queue) or SERVED. A unique token is assigned to any student entering the queue. The queue serves the students based on the following criteria: The student having the highest Cumulative Grade Point Average (CGPA) is served first. Any students having the same CGPA will be served by name in ascending case-sensitive alphabetical order. Any students having the same CGPA and name will be served in ascending token order. Given a sequence of events, print the names of students who are yet to be served(based on above criteria). If the queue is empty, print EMPTY. Input Format The first line of input contains an integer, , denoting the total number of events. Each of the subsequent lines will be of the following two forms: ENTER name CGPA token - The student to be inserted into the priority queue. SERVED - The highest priority student in the queue was served. Constraints where where each token i is a unique integer.

Output Format Print the names (based on the criteria) of the students who are not served at all after executing all events; if every student in the queue was served, then print EMPTY. Sample Input 12 ENTER John 3.75 50 ENTER Mark 3.8 24 ENTER Shafaet 3.7 35 SERVED SERVED ENTER Samiha 3.85 36 SERVED ENTER Ashley 3.9 42 ENTER Maria 3.6 46 ENTER Anik 3.95 49 ENTER Dan 3.95 50 SERVED Sample Output Dan Ashley Shafaet Maria