Special 21 Day 12 : Queue & Deque

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Welcome Geeks,

This is the contest of 12th  Day of 21 days problem-solving challenge of interview preparation with GeeksforGeeks. 

This contest has 3 coding questions based on Queue & Deque and 10 MCQs on Transaction and Concurrency Control.

To simulate a real interview environment, the contest has:

• All of the problems are function problems, i.e. you need to complete only a given function rather than writing complete code.
• You can also access hints while solving problems, using hints will deduct marks.

Good Luck!

• Any type of plagiarism will not be entertained. In case, anyone is found guilty, the score of the concerned participants will be dropped to 0.
• The maximum marks for each problem is 50. There is 5% penalty (on maximum marks) for each wrong submission. For example, if a problem is of 100 marks and a participant makes a wrong submission, the new maximum marks for that participant are reduced to 95. After the next wrong submission of the same problem, the new maximum marks are further reduced to 90.25 and so on. So, it is suggested to use 'Compile & Test' against sample test cases option before each submission.
• Languages supported for the contest are: C++, Java, Python.

• Note: Make sure other participants don't have access to your code. In case you are using any other online coding environment, you are responsible for the privacy of your code

•  It is advised to attempt the Sample Geeks Challenge to get familiar with the GeeksforGeeks coding environment