Description: Reversal of playing cards: playing cards are arranged on the table. Each time you reverse a certain range of cards, or ask the playing cards in a certain range are reversed several times. Using the line segment tree, you can process large-scale data (there are a lot of cards)
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File list (Check if you may need any files):
| Filename | Size | Date |
|---|
| magician.cpp | 3494 | 2020-01-03 |
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