What is the front and rear element of the queue respectively after the following sequence of...

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What is the front and rear element of the queue respectively after the following sequence of enqueues and dequeues in the following program fragment? queue<int>Q; Q.push (10); Q.push (7); Q.push (12); Q.pop(); Q.push (18); Q.push (15); Q.pop(); Q.pop(); Q.pop(); Q.push (8); Q.push (11); 15,11 11,15 O 11,10 O 10,11 What is the front and rear element of the queue respectively after the following sequence of enqueues and dequeues in the following program fragment? queue<int>Q; Q.push (10); Q.push (7); Q.push (12); Q.pop(); Q.push (18); Q.push (15); Q.pop(); Q.pop(); Q.pop(); Q.push (8); Q.push (11); 15,11 11,15 O 11,10 O 10,11

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