Computer Science
Show the status of queue after each operation
enqueue(34)
enqueue(54)
dequeue()
enqueue(12)
dequeue()
enqueue(61)
peek()
dequeue()
dequeue()
dequeue()
dequeue()
enqueue(1)
Python Queue
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Answer
| enqueue(34) | 34 | |
| ↑ ↑ | ||
| f r | ||
| enqueue(54) | 34 | 54 |
| ↑ | ↑ | |
| f | r | |
| dequeue() | 54 | |
| ↑ ↑ | ||
| f r | ||
| enqueue(12) | 54 | 12 |
| ↑ | ↑ | |
| f | r | |
| dequeue() | 12 | |
| ↑ ↑ | ||
| f r | ||
| enqueue(61) | 12 | 61 |
| ↑ | ↑ | |
| f | r | |
| Peek() | 12 | |
| dequeue() | 61 | |
| ↑ ↑ | ||
| f r | ||
| dequeue() | #Empty | |
| dequeue() | underflow | |
| dequeue() | underflow | |
| enqueue(1) | 1 | |
| ↑↑ | ||
| f r |
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